• New insights emerged last decade that enriched our knowledge regarding the biological behavior of appendiceal neuroendocrine tumors (NETs), which range from totally benign tumors less than 1cm to goblet cell carcinomas which behave similarly to colorectal adenocarcinoma. (wjgnet.com)
  • most of these tumors are adenocarcinomas containing pools of mucin. (biomedcentral.com)
  • 36.8% of well-differentiated tumors, 33.3% moderately-differentiated tumors, and 12.1% of poorly-differentiated tumors were found to be HER2-positive. (edu.vn)
  • While most tumors metastatic to the serous membranes are of epithelial origin, cytologists should be aware that non-epithelial neoplasms can also cause malignant effusions including sarcomas, melanomas, germ cell tumors, and, more rarely, brain tumors. (cytojournal.com)
  • The differential diagnosis of a malignant effusion is accordingly broad, especially for the small round blue cell tumors that includes not only mesenchymal tumors, but also non-mesenchymal tumors, such as neuroblastoma and Wilms tumor. (cytojournal.com)
  • Common non-epithelial neoplasms that may cause malignant effusions include malignant melanoma, sarcomas, and other neoplasms including germ cell tumors [ Figure 1 ]. (cytojournal.com)
  • A small proportion of these tumors show large ducts lined by neoplastic cells, the so-called large-duct variant of adenocarcinoma. (coek.info)
  • A proportion of tumors are poorly differentiated with little or no gland formation. (coek.info)
  • Skálová A: Cell proliferation in salivary glands and tumors of salivary gland origin. (biopticka.cz)
  • Carcinoma of cervix is classified as per the WHO classification into primary tumors which are predominantly epithelial tumors, mesenchymal tumors and tumor like lesions, mixed epithelial stromal tumors, melanocytic, germ cell, and lymphoid tumors. (cytojournal.com)
  • Squamous cell carcinoma (SCC) in various morphological forms needs to be separated from other epithelial tumors for treatment modality selection. (cytojournal.com)
  • Histological tumor grade is prognostic, with poorly differentiated tumors having a worse prognosis. (biomedcentral.com)
  • [ 3 , 4 ] The term "pseudomesotheliomatous carcinoma" was first applied by Harwood and colleagues in 1976 to 6 cases of peripheral lung adenocarcinoma that closely mimicked mesothelioma. (medscape.com)
  • Goblet cell carcinoma (synonyms: adenocarcinoid, mucous adenocarcinoid) belongs to the last category. (wjgnet.com)
  • Most of the tumours were well or moderately differentiated adenocarcinomas, one was poorly differentiated, and one was a signet ring cell carcinoma. (bmj.com)
  • Tumour was not present in the resection specimens apart from a single lymph node deposit in the patient with signet ring cell carcinoma. (bmj.com)
  • Patients with histologically incompletely excised polyps, containing well or moderately differentiated carcinoma, can be safely managed by conservative treatment provided the endoscopist is certain there is no residual tumour. (bmj.com)
  • 2. Signet-ring cell carcinoma, scirrhous carcinoma, solid carcinoma (poorly-differentiated). (poznayka.org)
  • 3. Squamous-cell carcinoma. (poznayka.org)
  • Microscopically, early gastric carcinoma is a typical glandular adenocarcinoma, usually well-differentiated. (poznayka.org)
  • Microscopically, it may be an adenocarcinoma or signet-ring cell carcinoma, extensively infiltrating the stomach wall, but due to marked desmoplasia cancer cells may be difficult to find. (poznayka.org)
  • carcinoma contains abundant pools of mucin in which are seen a small number of tumor cells, sometimes having signet-ring appearance. (poznayka.org)
  • Using WHO classification, 43.8% were tubular adenocarcinoma, 7.8% were mucinous adenocarcinoma, 17.2% were signet-ring cell carcinoma, and 31.3% were undifferentiated carcinoma. (edu.vn)
  • 29.7% were well-differentiated, 18.8% were moderately-differentiated, and 51.6% were poorly-differentiated carcinoma. (edu.vn)
  • Pathology result of the surgical specimen revealed poorly differentiated prostate carcinoma with positive surgical margins. (doctorsmedicalopinion.com)
  • 52-year-old male was diagnosed in 2004 with a carcinoma of the lower rectum and underwent surgical anterior resection of the rectal tumor which was a well differentiated adenocarcinoma. (doctorsmedicalopinion.com)
  • Carcinoma squamous cell. (lookformedical.com)
  • A carcinoma derived from stratified SQUAMOUS EPITHELIAL CELLS. (lookformedical.com)
  • A lesion with cytological characteristics associated with invasive carcinoma but the tumor cells are confined to the epithelium of origin, without invasion of the basement membrane. (lookformedical.com)
  • An anaplastic, highly malignant, and usually bronchogenic carcinoma composed of small ovoid cells with scanty neoplasm. (lookformedical.com)
  • It represents a large group of epithelial lung malignancies which can be divided into two clinical groups: SMALL CELL LUNG CANCER and NON-SMALL-CELL LUNG CARCINOMA . (lookformedical.com)
  • In spite of their aggressive biologic behavior, some ductal adenocarcinomas show bland nuclear features, making the distinction of benign lesion from an invasive carcinoma difficult, particularly on small biopsy specimens (Fig. 1). (coek.info)
  • The availability of tools to interrogate the transcriptome and proteome, such as expression profiling, have identified a substantial library of products that could aid in distinguishing a well-differentiated pancreatic carcinoma from a benign pancreatic lesion.2 Many of these proteins can be detected immunohistochemically and are thus available to the practicing pathologist (Table 2).3 Some of these markers have been validated on biopsy specimens as well. (coek.info)
  • Another change is the subclassification of adenocarcinoma: the definition of bronchioalveolar carcinoma has been restricted to noninvasive tumours. (ersjournals.com)
  • Large cell neuroendocrine carcinoma (LCNEC) is now recognized as a histologically high grade non small cell carcinoma showing histopathological features of neuroendocrine differentiation as well as immunohistochemical neuroendocrine markers. (ersjournals.com)
  • The large cell carcinoma class has been enriched with several variants, including the LCNEC and the basaloid carcinoma, both with a dismal prognosis. (ersjournals.com)
  • As compared to the previous edition, changes include a better definition of pre-invasive lesion, a reclassification of adenocarcinoma, the description of two new tumour types as variants of large cell carcinoma, large cell neuroendocrine carcinoma (LCNEC) and basaloid carcinoma, and a new class called pleomorphic carcinoma. (ersjournals.com)
  • In addition of the categories of squamous dysplasia and carcinoma in situ , two additional lesions were added to the group of pre-invasive lesions: atypical adenomatous hyperplasia (AAH) and diffuse idiopathic pulmonary neuroendocrine cell hyperplasia (DIPNECH). (ersjournals.com)
  • This picture depicts an abdominal CT scan of a 7 year-old boy with a mucinous adenocarcinoma of the ascending colon. (medscape.com)
  • Pseudomyxoma Peritonei ( PMP ) is a more common name given to the "jelly belly" syndrome caused by mucinous adenoma and mucinous adenocarcinoma. (cancerindex.org)
  • 2 ], who observed an increase in the incidence in the last decades, especially in women, and again mucinous adenocarcinoma being the one with the highest prevalence (48%), pointing to an increased incidence of mucinous adenocarcinoma in men (1.0 per million person-years) and women (1.9 per million person-years). (karger.com)
  • Therefore, the aim of this study was to evaluate the capacity of a concise panel of known BC markers together with GCDFP-15 and HNF4A to accurately distinguish primary gastric adenocarcinoma from metastases to stomach in the Brazilian population. (biomedcentral.com)
  • Moreover, our data confirmed HNF4A as a potential marker in primary gastric adenocarcinoma and suggest the utility of a four-marker immunohistochemistry panel. (biomedcentral.com)
  • This study is aimed at the assessing endoscopic and histopathological characteristics of gastric adenocarcinoma and their relationship with HER2 overexpression. (edu.vn)
  • Highly aggressive gastric adenocarcinoma with multiple skin. (lww.com)
  • Although gastric adenocarcinoma is common in middle- and old-aged population, it is rare in young people. (lww.com)
  • We report the case of a 19-year young man with gastric adenocarcinoma who had multiple skin nodules over the trunk during presentation. (lww.com)
  • Fine-needle aspiration cytology of the nodule revealed it to be metastasis from gastric adenocarcinoma. (lww.com)
  • Gastric adenocarcinoma is one of the common causes of cancer death in the world. (lww.com)
  • Comparison of clinicopathological characteristics and overall survival between different types of gastric malignant neuroendocrine neoplasms and gastric adenocarcinoma[J]. ACADEMIC JOURNAL OF CHINESE PLA MEDICAL SCHOOL, 2023, 44(4): 324-332. (301hospital.com.cn)
  • Objective To explore the clinicopathological characteristics and the overall survival rate (OS) of gastric malignant NEN taking gastric adenocarcinoma as reference. (301hospital.com.cn)
  • Methods A retrospective case control study was performed in the clinical data about non cM1 gastric malignant NEN and gastric adenocarcinoma patients who underwent surgical treatment in the First Medical Center of Chinese PLA General Hospital from January 2008 to December 2018, and their clinicopathological characteristics were analyzed and compared. (301hospital.com.cn)
  • The influence of adjuvant chemotherapy on the survival of gastric adenocarcinoma patients in a stage-specific manner is controversial. (springeropen.com)
  • Most cases of stomach cancers are gastric carcinomas, which can be divided into a number of subtypes, including gastric adenocarcinomas. (wikipedia.org)
  • Macroscopically, ulcerative carcinomas are poorly-differentiated adenocarcinomas, which invade deeply into the stomach wall. (poznayka.org)
  • Microscopically, fungating or polypoid carcinomas are well-differentiated adenocarcinomas, commonly papillary type. (poznayka.org)
  • ASC has also been identified in the esophagus, anus, and vagina, where squamous cell carcinomas predominate. (biomedcentral.com)
  • Skálová A, Lehtonen H, Boguslawsky K, Leivo I: Prognostic significance of cell proliferation in mucoepidermoid carcinomas of salivary gland. (biopticka.cz)
  • Skálová A, Leivo I, Boguslawsky K, Saksela E: Cell proliferation correlates with prognosis in acinic cell carcinomas of salivary gland origin. (biopticka.cz)
  • Skálová A, Michal M: Patterns of cell proliferation in actinic keratoacanthomas and squamous cell carcinomas of the skin. (biopticka.cz)
  • Endoscopic polypectomy of pedunculated and sessile malignant polyps is adequate treatment if the lesion can be removed in one piece, the tumour is well or moderately differentiated, and local excision is judged complete by endoscopic and histological criteria. (bmj.com)
  • Malignant lymphoma (ML) was first suspected, but aspiration cytology and biopsy of the lymph node suggested metastatic adenocarcinoma resulting from breast cancer. (biomedcentral.com)
  • As malignant cells have a tendency to round up in body fluids these non-epithelial neoplasms can therefore mimic reactive mesothelial cells and metastatic adenocarcinoma. (cytojournal.com)
  • A 28-year-old Caucasian woman with a previous history of pelvic tumor resection two months previously, suggestive of metastatic adenocarcinoma, presented with intense shortness of breath. (biomedcentral.com)
  • Favorable prognosticators included jejunal location, absence of nodal metastases, and a well-differentiated grade [ 7 ]. (gastrores.org)
  • A malignant neoplasm made up of epithelial cells tending to infiltrate the surrounding tissues and give rise to metastases. (lookformedical.com)
  • In a patient who had been diagnosed in 2006 with appendiceal adenocarcinoma with peritoneal metastases after an incomplete surgery, palliative chemotherapy was administered. (karger.com)
  • Cancer of the Appendix (also known as appendiceal cancer) occurs when cells in the appendix become abnormal and multiply without control. (cancerindex.org)
  • Appendiceal neuroendocrine tumours (aNET) (i.e. well differentiated) account for 75% of all aNENs, are mostly indolent tumours treated effectively with simple appendectomy. (ronnyallan.net)
  • Histologic examination of specimen obtained by endoscopic biopsy showed poorly differentiated calcified signet-ring gastric cancer. (biomedcentral.com)
  • Histopathological examination of specimen obtained by endoscopic biopsy showed poorly differentiated signet-ring cell cancer with calcifications (Fig. 1 ). (biomedcentral.com)
  • This patient underwent endoscopic retrograde cholangiopancreatography and a concurrent biopsy, and the histopathological diagnosis was of a poorly differentiated adenocarcinoma of the AmV, tumor, node, metastis (TNM) classification T2, N1, M0, stage IIA. (biomedcentral.com)
  • Histopathological examination shows signet-ring cells and psammoma bodies. (biomedcentral.com)
  • SFTs of the pleura are localized mesenchymal neoplasms composed of fibroblastlike cells believed to arise from the subpleural connective tissue. (medscape.com)
  • The other main cancer types found in the appendix are regular adenocarcinomas (including signet ring cell and goblet cell) and mucinous neoplasms such as Pseudomyxoma Peritonei (PMP) or Low-Grade Mucinous Neoplasms (LAMD). (ronnyallan.net)
  • About two thirds of appendix tumours are carcinoid tumours which develop in hormone-producing cells that are present in many parts of the body, including the appendix. (cancerindex.org)
  • Less common tumours of the appendix include signet-ring cell adenocarcinoma and paraganglioma . (cancerindex.org)
  • Our results demonstrate that tumor growth, peritoneal dissemination and peritoneum or organ metastasis implanted MKN45 cells were significantly decreased in shAhR and Biseugenol-treated mice and that endoplasmic reticulum (ER) stress was caused. (oncotarget.com)
  • This case is reported due to the rarity of cutaneous metastasis at multiple sites from a highly aggressive adenocarcinoma in a young patient, to emphasize the importance of cutaneous metastasis as a poor prognostic sign in patients with a history of cancer. (lww.com)
  • A 72 years old female that 8 years ago was diagnosed with adenocarcinoma of the sigma with liver metastasis. (doctorsmedicalopinion.com)
  • In particular, high levels of carcinoembryonic antigen CEA in the blood can indicate metastasis of adenocarcinoma. (symptoms101.com)
  • We report a sporadic case of an 84-year-old man with a pacemaker diagnosed with heart osteosarcoma, hepatocellular and prostatic adenocarcinoma and presenting with symptoms mimicking infective endocarditis. (journalmc.org)
  • Its occurrence is more common in areas where adenocarcinomas arise frequently, such as the stomach, intestine, and uterus. (biomedcentral.com)
  • Final pathology revealed metastatic poorly differentiated adenocarcinoma. (gastrores.org)
  • PATHOLOGY Ductal adenocarcinomas are firm to hard mass lesions that are often poorly defined grossly. (coek.info)
  • Histologically, most ductal adenocarcinomas are composed of glandlike structures embedded in an abundant desmoplastic stroma. (coek.info)
  • Mesenteric fat, vessels and lymph nodes were resected en block with the ascending colon. (medscape.com)
  • The tumour cells with oval to round nuclei with prominent nucleoli were found to be showing partial ductal structures, leading us to suspect poorly differentiated adenocarcinoma. (biomedcentral.com)
  • PANCREATIC DUCTAL ADENOCARCINOMA CLINICAL FEATURES Ductal adenocarcinoma of the pancreas is the most common malignant neoplasm of the pancreas. (coek.info)
  • 5 ] The location of a rectal tumor is usually indicated by the distance between the anal verge, dentate line, or anorectal ring and the lower edge of the tumor, with measurements differing depending on the use of a rigid or flexible endoscope or digital examination. (cancer.gov)
  • Mismatch repair deficiency occurs in 5% to 10% of patients with rectal adenocarcinomas. (cancer.gov)
  • Synovial sarcomas encompass both biphasic (epithelial and spindle cell components) and monophasic (purely spindle cell) variants. (medscape.com)
  • In this report, we describe the computerized tomography (CT) changes in calcification in a patient with locally advanced signet-ring gastric cancer treated with chemotherapy. (biomedcentral.com)
  • In this report, we present the serial computerized tomography (CT) features of a locally advanced calcified signet-ring cell gastric cancer that showed partial response to chemotherapy. (biomedcentral.com)
  • While radiotherapy and chemotherapy for small bowel adenocarcinoma are primarily palliative measures, surgery can be curative [ 8 ]. (gastrores.org)
  • Diagnostic imaging such as computed tomography (CT) and magnetic resonance imaging (MRI) may miss small lesions and often are unable to differentiate between small bowel adenocarcinoma and severe Crohn's disease [ 2 ]. (gastrores.org)
  • Seventy percent of small bowel adenocarcinoma in Crohn's patients is found incidentally on pathological examination of resected specimens [ 2 ]. (gastrores.org)
  • Molecular products metabolized and secreted by neoplastic tissue and characterized biochemically in cells or body fluids. (lookformedical.com)
  • The term "oncotarget" encompasses all molecules, pathways, cellular functions, cell types, and even tissues that can be viewed as targets relevant to cancer as well as other diseases. (oncotarget.com)
  • It is known that a normal cell is transformed into a cancer cell if a certain mutation (defect) occurs in its chromosomes. (californiansforastrongeramerica.com)
  • In HNPCC, a mutation that inactivates an MMR gene leads to the accumulation of cell mutations and greatly increases the likelihood of malignant transformation and cancer. (medscape.com)
  • A pathological examination diagnosed a solid poorly differentiated adenocarcinoma, with signet ring cells diffusely infiltrating the ovaries and fallopian tubes bilaterally, compatible with a metastatic pelvic tumor of probable gastric origin, traditionally known as a Krukenberg tumor. (biomedcentral.com)
  • It ranges from a well-differentiated tumor with EPITHELIAL CELLS indistinguishable from normal HEPATOCYTES to a poorly differentiated neoplasm. (lookformedical.com)
  • A malignant neoplasm characterized by the formation of numerous, irregular, finger-like projections of fibrous stroma that is covered with a surface layer of neoplastic epithelial cells. (lookformedical.com)
  • Fewer than 1% of cases of adenocarcinoma of the colon and rectum occur in patients younger than 20 years of age. (medscape.com)
  • Hamartomatous polyps may also be found in patients with Cowden disease, Cronkhite, Bannayan-Riley-Ruvalcaba syndrome, and basal cell nevus syndrome. (medscape.com)
  • This case demonstrates management of a retained capsule in Crohn's patients and emphasizes the importance of considering small bowel adenocarcinoma in Crohn's patients with obstructive signs. (gastrores.org)
  • however, in patients with Crohn's disease as compared to the general population, there is over a 60-fold increased risk of small bowel adenocarcinoma [ 1 ]. (gastrores.org)
  • Salivary Gland Polymorphous Adenocarcinoma: Clinicopathological Features and Gene Alterations in 36 Japanese Patients. (nagoya-u.ac.jp)
  • See also Pancreatic Adenocarcinoma Imaging: What You Need to Know , a Critical Images slideshow, to help identify which imaging studies to use to identify and evaluate this disease. (medscape.com)
  • For example, if the primary tumor grade was 2 and the secondary tumor grade was 3 but some cells were found to be grade 4, the Gleason score would be 2+4=6. (60thsense.com)
  • Cytotoxicity can occur at any stage of the cell cycle, but cell is most vulnerable to action of these drugs in G1 and S phase. (medscape.com)
  • Other symptoms that may occur as a result of small bowel adenocarcinoma such as bleeding, pain, and bloating are often presumed to be due to a Crohn's flare. (gastrores.org)