• The critical diagnosis of this neoplasm is often difficult because of its similarity with other primary or secondary papillary lesions of the pineal region, including parenchymal pineal tumors, papillary ependymoma, papillary meningioma, choroid plexus papilloma, and metastatic papillary carcinoma. (wikipedia.org)
  • Papillary intralymphatic angioendothelioma (Dabska tumor) is a rarely metastasizing lymphatic vascular neoplasm that usually affects children and young adults. (anaisdedermatologia.org.br)
  • The histopathological examination of the mass of the ampulla of Vater demonstrated intraductal papillary mucinous neoplasm. (ispub.com)
  • After surgery, the histopathological examination of the mass of the ampulla of Vater demonstrated an intraductal papillary mucinous neoplasm (Figure 2). (ispub.com)
  • Due to this change, tumor grades more accurately reflect the cellular behavior and subsequent clinical course of each neoplasm. (medscape.com)
  • SPPT) is a rare exocrine pancreatic neoplasm, tumor' of the pancreas.4 not conflict of interests. (bvsalud.org)
  • In 1987, the staging of ampullary carcinomas was added to the tumor, node, metastases (TNM) classification of malignant tumors by the International Union Against Cancer (now the Union for International Cancer Control), and since then, this classification has been used widely. (medscape.com)
  • Tumors of medullary carcinomas are soft and fleshy. (medicalnewstoday.com)
  • Papillary carcinomas are another rare form of IDC, accounting for under 1-2% of invasive breast cancers. (medicalnewstoday.com)
  • Cases of papillary carcinomas often occur in postmenopausal females. (medicalnewstoday.com)
  • Papillary carcinomas have a medium level of growth. (medicalnewstoday.com)
  • Papillary carcinomas of the breast (PCB), also termed malignant papillary carcinomas of the breast, are rare forms of the breast cancers. (wikipedia.org)
  • The malignant tumours consisted of 18 adenoid cystic adenomas, 10 mucoepidermoid carcinomas, 5 acinic cell carcinomas, 5 carcinoma in pleomorphic adenoma as well as of 12 other malignancies belonging to 7 different tumour entities. (researchgate.net)
  • There was no significant correlation of ploidy status or SPF with the tumor grades of mucoepidermoid carcinomas. (researchgate.net)
  • Backround/aim: Papillary thyroid carcinomas (PTC) frequently metastasize to regional lymph nodes. (tubitak.gov.tr)
  • Fifty carcinomas that were partially to completely papillary in nature were examined. (nih.gov)
  • According to urethroscopic and rectal palpation findings, six of the carcinomas were located centrally, 40 tumors were in the prostate proper, and four were clinical stage T0. (nih.gov)
  • Tumors located in central portions of the prostate are, in our opinion, morphologic variants of usual prostatic carcinomas, and apparently arise in prostatic ducts. (nih.gov)
  • We conclude that a distinction between endometrioid carcinomas and tumors of prostatic ducts does not seem justified and that papillary prostatic carcinomas should be treated like common prostatic cancer. (nih.gov)
  • Most thyroid cancers are papillary or follicular carcinomas and usually are not highly malignant and are seldom fatal. (msdmanuals.com)
  • Carcinoid tumors and small-cell carcinomas of the gallbladder and extrahepatic bile ducts: a comparative study based on 221 cases from the Surveillance, Epidemiology, and End Results Program. (cancercentrum.se)
  • Eom KS, Kim DW, Kim TY: Diffuse craniospinal metastases of intraventricular rhabdoid papillary meningioma with glial fibrillary acidic protein expression: a case report. (karger.com)
  • Therefore, the TNM (Tumor size, Nodal involvement, Metastases) system used for most non-CNS tumors is not commonly employed in the evaluation of CNS neoplasms. (medscape.com)
  • Radiation therapy may provide palliative relief from symptomatic metastases, control recurrent tumors, and prevent recurrence of advanced resected tumors. (medscape.com)
  • Methods: Quantitative measurements of iodine avidity in surgical specimens (primary tumour and lymph node metastases) of 28 patients were compared to immunohistochemical expression of the thyroid-stimulating hormone receptor, thyroid peroxidase (TPO), pendrin, sodium-iodide symporter (NIS) and mutational status of BRAF and the TERT promoter. (lu.se)
  • We describe a case of a young woman presenting with a plantar lesion, for 9 months and histological diagnosis of Dabska tumor. (anaisdedermatologia.org.br)
  • Any pancreatic tumor, as well as benign conditions such as pancreatitis, require diagnosis and treatment by expert specialists. (bidmc.org)
  • These tumors vary between 0.063 and 0.21% on autopsy investigations but the frequency of their diagnosis is increasing because of the extensive use of flexible endoscopy. (ispub.com)
  • The diagnosis by cystoscopy of a bladder tumor in a nonsmoking man less than 30 years of age with low level hematuria prompted the research team to offer cytoscopy to all members of the cohort. (cdc.gov)
  • This may be due to late diagnosis of these tumors in our patients as most cases diagnosed at advanced stage and the sections were taken from deep tumor tissue to increase the number of tumor cells in our samples. (researchgate.net)
  • The diagnosis and treatment of the tumor are also discussed. (scirp.org)
  • The aim of this report is to analyze the histological features, diagnosis and treatments of the tumor. (scirp.org)
  • Tumor markers are tumor-derived or tumor-associated proteins, antigens, genes or hormones that can also aid in diagnosis, in the measurement of therapeutic response, in locating tumor origin or in determining recurrence. (oncolink.org)
  • The only characteristic appearance distinguishing between benign and malignant disease is the presence of an ulcerative tumor mass, which has been observed in 21% of patients with malignancy and in no patients with benign disease. (medscape.com)
  • Although malignant tumors of the main papilla are more common, a number of benign neoplasms also may arise in the periampullary area, including benign adenomas (tubular and villous), lipomas, hamartomas, fibromas, and neurogenic tumors. (medscape.com)
  • The most common benign tumor of the ampulla is the villous adenoma. (medscape.com)
  • The World Health Organization (2019) classified papillary neoplasms (i.e. benign or cancerous tumors) of the breast into 5 types: intraductal papilloma, papillary ductal carcinoma in situ (PDCIS), encapsulated papillary carcinoma (EPC), solid-papillary carcinoma (SPC), and invasive papillary carcinoma (IPC). (wikipedia.org)
  • New Hope Unlimited is dedicated to providing personalized care for benign and malignant pineal region tumors. (newhopemedicalcenter.com)
  • Methods: Flow cytometric analysis of DNA pliody and S-Phase Fraction (SPF) was done in 50 fresh tumor tissue sections of SGTs which diagnosed as 15 benign and 35 malignant tumors. (researchgate.net)
  • Results: 93.3% of the benign SGTs tumors were diploid, while only 34% of malignant tumors were diploid and 66% were aneuploid. (researchgate.net)
  • The malignant SGTs had higher SPF than the benign tumors but with no significant difference. (researchgate.net)
  • Müllerian adenosarcoma (MA) is a rare mixed and low malignant tumor of female genital system, and is a biphasic differential tumor that is composed of admixed benign epithelial and sarcomatoid mesenchymal components. (scirp.org)
  • Papillary tumors are unusual entities, making up less than 5% of all new digestive tract neoplasms in the United States. (medscape.com)
  • Other types include islet cell tumors, pancreatic lymphoma, and cystic tumors, such as intraductal papillary mucinous neoplasms (IPMN or IPMT). (bidmc.org)
  • Aim: The aim of this study is to investigate the DNA ploidy and S-Phase Fraction (SPF) of some Salivary Gland Tumors (SGTs) in Egyptian patients and to investigate the correlation between these two biological parameters and the presumptive behavior of these neoplasms. (researchgate.net)
  • Because neoplasms in the CNS have widely varying features, clinical courses, and prognoses, a robust and reliable grading system is essential for the proper evaluation of CNS tumors. (medscape.com)
  • An incisional biopsy was performed, whose anatomopathological study evidenced an intralymphatic lesion, with prominent papillary formations and vascular axes lined by rounded and hyperchromatic cells, projecting into the lumen (hobnail cells), compatible with papillary intralymphatic angioendothelioma - Dabska tumor ( Figs. 3 and 4 ). (anaisdedermatologia.org.br)
  • Information on the frequency and clinical features of PDCIS is limited since it and EPC were regarded as the same lesion termed intracystic papillary carcinoma until 2012. (wikipedia.org)
  • There was no transitional lesion between the two tumors. (hindawi.com)
  • Figure 2: (A) Papillary lesion with abnormally dispersed glandular structures (HEx50), (B) Dysplasia of the epithelium with extended, pseudostratified hyperchromatic nuclei of crowdy epithelial cells with mucin depletion (HEx200). (ispub.com)
  • Pineal region tumors are normally composed of a variety of cells including astrocytes, ganglion cells, blood vessels, and pinealocytes, which are the cells of this organ. (wikipedia.org)
  • Pineal region tumors constitute about 0.4%-1% of intracranial tumors in adults. (banglajol.info)
  • Medullary thyroid cancer is a neuroendocrine tumor that develops in C cells of the thyroid. (uofmhealth.org)
  • Immunohistochemistry showed different staining patterns in tumor components. (hindawi.com)
  • Immunohistochemistry revealed that 20 of 22 tumors were positive for prostatic acid phosphatase (PAP) and prostate-specific antigen (PSA). (nih.gov)
  • HEG1 protein expression in tumor cells was evaluated separately for membrane and cytoplasmic staining using immunohistochemistry. (bvsalud.org)
  • Histologic examination demonstrates a renal cell carcinoma metastatic to a papillary carcinoma of the thyroid. (elsevierpure.com)
  • Bohn, OL , de las Casas, LE & Leon, ME 2009, ' Tumor-to-tumor metastasis: Renal cell carcinoma metastatic to papillary carcinoma of thyroid-report of a case and review of the literature ', Head and Neck Pathology , vol. 3, no. 4, pp. 327-330. (elsevierpure.com)
  • Rhabdoid papillary meningiomas, encountered less often, should be distinguished from metastatic tumors of rhabdoid or papillary configuration, astrocytomas, ependymomas and atypical teratoid/rhabdoid tumor. (karger.com)
  • Sixteen histological tumor subtypes exist and the most common are papillary, chromophobe and clear cell renal cell carcinoma (ccRCC) representing 85% of all RCC. (frontiersin.org)
  • It is often used for detecting ascites, biliary or renal obstruction, or pelvic tumors, and is also useful for guiding biopsies. (oncolink.org)
  • The most common renal malignancy, ccRCC, is characterized by a functional inactivation of the von Hippel-Lindau (VHL) tumor-suppressor. (lu.se)
  • As an example, consider the classification of anaplastic tumors as elaborated in the WHO guidelines and Louis et al. (medscape.com)
  • [ 2 ] Prior to 2021, an "anaplastic" tumor was categorized as Grade III regardless of whether the tumor was an anaplastic astrocytoma, anaplastic oligodendroglioma, or anaplastic ependymoma. (medscape.com)
  • [ 2 ] Grade was applied across tumor types, regardless of differences in the clinical course and molecular behavior of different anaplastic tumor entities. (medscape.com)
  • Poorly differentiated and undifferentiated tumors (anaplastic thyroid cancer) are less common. (uofmhealth.org)
  • A significant proportion of patients with papillary thyroid cancer (PTC) present with extrathyroidal extension (ETE) and lymph node metastasis (LNM). (elsevierpure.com)
  • These systems are based on factors such as age, tumour size, if the tumour has grown into surrounding tissues (called invasion) and if the cancer has spread to other parts of the body (called metastasis). (cancer.ca)
  • Our purpose was to investigate the predictive role of tumor location for lymph node metastasis pattern in PTCs.Materials and methods: Medical records of 110 PTC patients were reviewed retrospectively. (tubitak.gov.tr)
  • The effects of age, sex, tumor size, and location on lymph node metastasis were investigated. (tubitak.gov.tr)
  • The multivariable modelling showed that tumour tissue localisation (primary tumour or lymph node metastasis), histological subtype, TPO and NIS expression and TERT promoter mutation were each independent predictors of iodine avidity that could explain 68% of the observed variation of iodine avidity. (lu.se)
  • Periampullary cancers can be broadly considered as tumors arising within 1 cm of the ampulla of Vater and include ampullary, distal bile duct, pancreatic, and duodenal cancers. (medscape.com)
  • They are a clinically, histologically, and biologically heterogeneous group of breast cancers that are often difficult to distinguish from each other as well as from other papillary breast lesions. (wikipedia.org)
  • Tumour development, histology and grade of breast cancers: prognosis and progression. (who.int)
  • Cancers of the nose and sinuses account for less than 1% of all tumors, but the nose and sinus give rise to a greater variety of tumors than. (mdanderson.org)
  • Papillary ependymomas (9393) and papillary meningiomas (9538)-cancers that occur in the central nervous system-are included in the "Brain and Central Nervous System" and "All Sites" categories. (cdc.gov)
  • Papillary carcinoma accounts for 80 to 90% of all thyroid cancers. (msdmanuals.com)
  • The incidence of papillary thyroid carcinoma has risen over the last several decades, primarily due to the incidental discovery of small cancers in patients undergoing neck ultrasonography, MRI, CT scans, or PET scans that include the neck in the imaging field. (msdmanuals.com)
  • SLC44A1-PRKCA fusion in papillary and rosette-forming glioneuronal tumors. (thieme-connect.com)
  • 5 Sharma P, Swain M, Padua MD, Ranjan A, Lath R. Rosette-forming glioneuronal tumors: a report of two cases. (thieme-connect.com)
  • Being overweight or having obesity may be a risk factor for papillary carcinoma of the thyroid. (medlineplus.gov)
  • Malignant papillary tumors have a more favorable course after resection when compared with pancreatic cancer. (medscape.com)
  • Most resection specimens contain tumors that are 1-2cm in size. (medscape.com)
  • One week later, the patient was submitted to subtotal tumor resection, and remained asymptomatic in the post-operative period. (thieme-connect.de)
  • Tumors of the ampulla of Vater are rare histopathological conditions and have relatively good prognosis after resection. (ispub.com)
  • A transurethral resection of the bladder tumor was done. (medscape.com)
  • Although surgical resection of localized RCC is often curative, treatment of metastasized disease is very challenging as these tumors are virtually resistant to conventional radio- and chemotherapy. (lu.se)
  • Doctors usually classify papillary or follicular thyroid cancer into risk groups to help them plan treatment and follow-up. (cancer.ca)
  • Doctors can use different systems to determine the risk group for a papillary or follicular thyroid cancer. (cancer.ca)
  • It classifies papillary or follicular thyroid cancer as low, intermediate or high risk. (cancer.ca)
  • Other systems may classify papillary or follicular thyroid cancer into slightly different risk groups or use slightly different factors for each risk group. (cancer.ca)
  • When there is a very small amount of cancer (called micrometastasis) in 1-5 nearby lymph nodes, it is considered low-risk papillary or follicular thyroid cancer. (cancer.ca)
  • Well-differentiated tumors (papillary thyroid cancer and follicular thyroid cancer) can be treated and can usually be cured. (uofmhealth.org)
  • The 2016 World Health Organization classification of tumors of the central nervous system: a summary. (thieme-connect.com)
  • As such, CNS tumor classification heavily relies on accurate grading , which reflects the degree of abnormal behavior displayed by the tumor cells themselves. (medscape.com)
  • In 1979, the World Health Organization (WHO) codified its first set of guidelines on the classification and staging of CNS tumors. (medscape.com)
  • Published in 2021, the fifth edition of the WHO Classification of Tumors of the CNS is the most recent version of the international standard for classifying brain and spinal cord tumors. (medscape.com)
  • Table 2 delineates the possible grades for each specific tumor type described in the 2021 WHO Classification of CNS Tumors. (medscape.com)
  • And after we obtained the tumors, we generated the gene expression properly and examined the tumors using consensus classification. (urotoday.com)
  • The ICCC-3 is based on ICD-O-3/WHO 2008 classification of Tumors of Haematopoietic and Lymphoid tissues. (cdc.gov)
  • They architecturally resemble serous borderline tumors but are much more frequently associated with endometriosis. (hindawi.com)
  • Seromucinous borderline tumors (SMBTs) are characterized by papillary architecture reminiscent of serous tumors but composed of mucinous epithelium similar to that of the endocervix. (hindawi.com)
  • Many of the cysts and the low papillary growth lesions were lined by tall columnar mucinous or cuboidal ciliated serous cells (Figure 2(b) ). (hindawi.com)
  • Papillary tumor of the pineal region (PTPR) is a neuroectodermal tumor thought to originate from cells of the subcommissural organ. (thieme-connect.de)
  • Nuclear stratification was noted, but no invasive growth was apparent in these cystic tumors. (hindawi.com)
  • The World Health Organization regarded solid papillary carcinoma as having two subtypes: in situ and invasive SPC. (wikipedia.org)
  • In this investigation a human RCC tissue microarray (TMA) (n=374) predominantly consisting of the most common histological tumor subtypes was hybridized with an ERV-K env antibody and correlated with patient clinical data. (frontiersin.org)
  • High ERV-K env total protein expression of all tumor subtypes significantly correlated with low tumor grading and a longer disease specific survival using multivariable analyses. (frontiersin.org)
  • Out of our six consensus molecular subtypes, [inaudible] belong to three luminal tumors. (urotoday.com)
  • Lesions of endocrine origin have been termed carcinoid tumors. (medscape.com)
  • The identification of PBS tumors may require the input of breast pathologists familiar with papillary lesions of the breast. (wikipedia.org)
  • The microscopic histopathology of typical PDCIS lesions (refer to adjacent high-power photomicrograph) prepared with a hematoxylin and eosin stain consists of mammary ducts that have papillary fronds (i.e. thin, finger-like or leaf-like structures) lined with one or several layers of neoplastic, columnar-shaped epithelial cells (i.e. tall, narrow cells with their nuclei close to the site of their ductal attachment). (wikipedia.org)
  • We suggest that these ovarian tumors and colonic lesions were also associated with separate endometriotic foci. (hindawi.com)
  • Microscopically, multiple cystic lesions or exophytic growth with low papillary lesions was identified in the ovaries (Figure 2(a) ). (hindawi.com)
  • No apparent transitional lesions were noted between the different tumor components. (hindawi.com)
  • The tumor appears to be derived from the specialized ependymal cells of the subcommissural organ. (wikipedia.org)
  • Duodenal carcinoids have morphologic and functional similarities to pancreatic islet-cell tumors. (medscape.com)
  • The tumor spreads via lymphatics to regional lymph nodes in one third of patients and may metastasize to the lungs. (msdmanuals.com)
  • The tumors showed glandular proliferation or small nests with invasive growth (Figure 2(d) ). (hindawi.com)
  • The colonic tumor exhibited crowded endometrial glands (Figure 2(e) ) as well as variation in the glandular architecture and cytology (Figure 2(f) ). (hindawi.com)
  • Research has intensified to understand ERV protein function and their role as tumor antigens and targets for cancer (immune) therapy. (frontiersin.org)
  • Rosette forming glioneu- ronal tumor: report of a chiasmal-optic nerve example in neurofibromatosis type 1: special pathology report. (thieme-connect.com)
  • The pathology report on the tumor will help your doctor determine your recommended treatment plan. (cancer.org)
  • Pathology of resected bladder tumor is shown under low-power microscopy. (medscape.com)
  • Multiple Primaries/Histology (Pre-2007)--Bladder: What code is used to represent the histology and how many primaries should be coded for a TURB specimen that demonstrates carcinoma in situ, Grade I to II papillary transitional cell carcinoma, and high grade transitional cell carcinoma? (cancer.gov)
  • Code this case as one primary and code the Histology and Grade, Differentiation fields to 8130/34 [papillary transitional cell carcinoma, high grade]. (cancer.gov)
  • Tumor is superficial grade 2, stage Ta transitional cell carcinoma. (medscape.com)
  • The description states the tumor extended through the serosa into periserosal tissue. (cancer.gov)
  • Papillary and follicular carcinoma together are called differentiated thyroid cancer because of their histologic resemblance to normal thyroid tissue and because differentiated function (eg, thyroglobulin secretion) is preserved. (msdmanuals.com)
  • However, the molecular mechanism of tumor invasiveness in PTC remains to be elucidated. (elsevierpure.com)
  • Histopathological, molecular, clinical and radiological characterization of rosette-forming glioneuronal tumor in the central nervous system. (thieme-connect.com)
  • Molecular features of these tumors have expanded our vision of tumorigenesis and progression and provided abundant specifically targeted pathways [ 5 ]. (hindawi.com)
  • [ 3 ] Consequently, grading each tumor requires an integrated analysis of histologic features and molecular signatures specific to that tumor type. (medscape.com)
  • Because the identification of key histopathologic features is highly sensitive to sampling, the new guidelines recommend using molecular signatures-which tend to be more diffuse and thus less sensitive to sampling-as a component in grading certain tumors and as a potential marker of clinical course and prognosis. (medscape.com)
  • An abdominal computed tomography scan revealed bilateral ovarian tumors and uterine leiomyoma. (hindawi.com)
  • There are many types of pancreatic tumors. (bidmc.org)
  • The only cure for pancreatic cancer is surgery, provided the tumor has not spread and can be removed completely and safely. (bidmc.org)
  • After successful excision, the tumor proved to be Papillary tumor of Pineal region (PTPR) both histomorphologically and immunohistochemical study. (banglajol.info)
  • Some endometrial tumors (8931) are reported in the "Corpus and Uterus, NOS" and "All Sites" categories. (cdc.gov)
  • Clinical case description of a papillary mucinous cystadenocarcinoma, extremely rare malignant tumor in the salivary gland and difficult to diagnose, in geriatric patient. (bvsalud.org)
  • Despite the favorable clinical features, after surgical removal, was diagnosed as papillary mucinous papillary mucinous cystadenocarcinoma. (bvsalud.org)
  • Al-Habib A, Lach B, Al Khani A: Intracerebral rhabdoid and papillary meningioma with leptomeningeal spread and rapid clinical progression. (karger.com)
  • Müllerian adenosarcomas are rare tumors with non-specific clinical features, and this forms a circumstance that poses significant challenges to the clinical practice or even delayed treatment when women presented with complaints of abdominal pain and irregular vaginal bleeding from the endometriosis postoperatively. (scirp.org)
  • Both rhabdoid and papillary meningioma are rare variants of meningioma categorized as WHO grade III. (karger.com)
  • Here, we report a rare case of combined rhabdoid papillary meningioma with discussion of its differential intraoperative cytologic diagnoses. (karger.com)
  • We also emphasize that the present case is the first case of rhabdoid papillary meningioma with primary manifestation in the spinal cord. (karger.com)
  • Hojo H, Abe M: Rhabdoid papillary meningioma. (karger.com)
  • Wakabayashi K, Suzuki N, Mori F, Kamada M, Hatanaka M: Rhabdoid cystic papillary meningioma with diffuse subarachnoid dissemination. (karger.com)
  • Wu YT, Ho JT, Lin YJ, Lin JW: Rhabdoid papillary meningioma: a clinicopathologic case series study. (karger.com)
  • Cystourethroscopy showed a 2-cm papillary tumor on the left superior aspect of the posterior wall of the bladder (Fig. 2). (medscape.com)
  • Intraoperative photograph through resectoscope demonstrates 2-cm papillary bladder tumor. (medscape.com)
  • A Bladder Tumor in an 18-Year-Old Male - Medscape - Jan 01, 1998. (medscape.com)
  • The cytoplasmic and often nuclear expression of S100 protein is present in nearly all tumor cells, and vimentin typically stains tumor cell cytoplasm adjacent to vessel walls. (wikipedia.org)
  • The cells of this tumor usually show a columnar to cuboidal cytoplasm with a well-defined cytoplasmic membrane. (wikipedia.org)
  • These tumor cells had clear cytoplasm and a hobnail-shaped appearance (Figure 2(c) ). (hindawi.com)
  • Search for eosinophilic hyaline cytoplasm, rather than a fibrillary one, is critical for distinguishing it from other commonly encountered spinal cord tumors in the total absence of meningothelial whorls, like the present case. (karger.com)
  • PDCIS tumors may occur alongside of (non-papillary) ductal carcinoma in situ or EPC tumors. (wikipedia.org)
  • Müllerian adenosarcomas are rare mixed tumors with low malignant potential, and occur mainly in the uterus. (scirp.org)
  • One beneficial aspect of these tumors, however, is that they frequently produce symptoms early in the course of the disease, when the tumor is relatively small. (medscape.com)
  • I am an author for 25 book chapters in breast disease including the WHO blue book and Fletcher Diagnostic Histopathology of Tumors new editions and I am acting as a reviewer to 20 indexed and high profile international journals and editor to three journals. (nottingham.ac.uk)
  • As such, under the older guidelines, one tumor entity could develop into another tumor entity with a different grade over the course of disease progression. (medscape.com)
  • Papillary tumors of the central nervous system and particularly of the pineal region are very rare and so diagnosing them is extremely difficult. (wikipedia.org)
  • First described in 2003, it is an extremely rare tumor. (banglajol.info)
  • This rare tumor is usually slow-growing and often mistaken for other types. (webmd.com)
  • The tumors in this rare type are a soft, squishy mass that looks like part of your brain called the medulla. (webmd.com)
  • Tumors in this rare type float in a pool of mucin, part of the slippery, slimy stuff that makes up mucus. (webmd.com)
  • These rare tumors grow in a leaflike pattern. (webmd.com)
  • Ovarian seromucinous borderline tumors (SMBTs) are rare. (hindawi.com)
  • The coexistence of other tumors with seromucinous tumors is also extremely rare. (hindawi.com)
  • Rosette-forming glioneuronal tumor of the septum pellucidum with extension to the supratentorial ventricles: rare case with genetic analysis. (thieme-connect.com)
  • Tumors of the ampulla of Vater are rare histopathological conditions. (ispub.com)
  • A pineal tumor - also called pineal region tumor or pinealoma - is a rare tumor that arises in the pineal gland in your brain. (newhopemedicalcenter.com)
  • Pineoblastoma is a rare, aggressive, and fast-growing tumor (grade IV). (newhopemedicalcenter.com)
  • Although they are very rare, these tumors may cause tinnitus. (sinuswars.com)
  • We report the case of a young woman with a transient ischemic attack secondary to a rare intracardiac tumor, a papillary fibroelastoma. (sutterhealth.org)
  • Nonetheless, the cellular atypia found was considered to be mild and immunohistochemical evaluation the reaction to Ki-67 was low, indicating a low rate of proliferation of the tumor. (bvsalud.org)
  • Traditionally, a WHO CNS grade was an overarching predictor of cellular behavior that could be applied across multiple tumor entities. (medscape.com)
  • Conclusion: DNA aneuploidy may be a key indicator for tumors activity and malignancy in SGTs, while the SPF has a minor role in the evaluation of SGTs activity. (researchgate.net)