Malignant tumors of the external auditory canal are rare tumors and very often diagnosed at an advanced stage due to non-specific symptoms. (bvsalud.org)
Most are malignant except the insulin-producing tumors (INSULINOMA). (lookformedical.com)
Tumors with skeletal muscle differentiation and malignant Schwann cells are classified as a subtype or a histologic variant of MPNST [ 9 , 10 ] and are referred to as malignant triton tumor (MTT) [ 11 ]. (hindawi.com)
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)
Metastatic malignant tumors of the temporal bone are relatively uncommon. (ejao.org)
Giant cell tumors (GCT) of the bone are aggressive and are recognised for variable clinical behaviour, which is not always related to radiographic or histological appearance [1]. (jbstjournal.com)
World Health Organization Classification of Tumors: Pathology and Genetics of Tumors of Soft Tissue and Bone, 2002). (curehunter.com)
Benign12
Immunohistochemical staining for cytokeratin 5/6 was applied on cell block sections of 23 cases of benign and 25 cases of malignant breast lesions using avidin biotin peroxidase technique. (ijpmonline.org)
The staining reaction in the malignant lesions was only cytoplasmic and the intensity was significantly less than that of benign lesions. (ijpmonline.org)
This antibody is also used as a component of panels to differentiate benign and malignant breast lesions. (ijpmonline.org)
Malignant neoplasms show a greater degree of anaplasia and have the properties of invasion and metastasis, compared to benign neoplasms. (lookformedical.com)
The nodules may be solid or fluid filled and benign or malignant. (fortherecordmag.com)
With benign and malignant thyroid neoplasms, coding directives instruct coders to use an additional code to identify any functional activity such as corticoadrenal insufficiency (255.41), hyperthyroidism (242.80 to 242.81), or hypopituitarism (253.2). (fortherecordmag.com)
Giant cell tumor is a benign bone tumor, locally aggressive with low malignant potential. (jbstjournal.com)
Giant cell tumor (GCT) of bone is a benign but locally aggressive tumor with tendency for local recurrence [2]. (jbstjournal.com)
It is important to keep in mind, however, that tumours are of two basic types: benign and malignant. (aloeveradamadeira.com)
The ability to distinguish between benign and malignant is crucial in determining the appropriate treatment and prognosis of a patient who has a tumour. (aloeveradamadeira.com)
Benign tumours usually resemble normal tissue more closely than malignant tumours do. (aloeveradamadeira.com)
Lymph nodes8
Although it is more aggressive than papillary cancer, it does not spread to the lymph nodes but may metastasize to the lungs and bones. (fortherecordmag.com)
Medullary cancer (193) develops from the thyroid's C cells and is more aggressive, harder to treat, and may spread to the lymph nodes or other organs. (fortherecordmag.com)
It can spread quickly to the lymph nodes and trachea and sometimes to other organs or bones. (fortherecordmag.com)
Primary malignant neoplasms of lymph nodes or glands are classified to categories 200 to 202. (fortherecordmag.com)
Many affected individuals have widespread disease at diagnosis, with involved regions often including multiple lymph nodes, the spleen, and, potentially, the bone marrow, the liver, and/or regions of the digestive (gastrointestinal) tract. (rarediseases.org)
Most patients with BPDCN have skin lesions and simultaneous involvement of the peripheral blood, bone marrow, and lymph nodes. (elsevierpure.com)
Most patients with BPDCN have skin lesions and simultaneous involvement of the peripheral blood, bone marrow, and lymph nodes.Methods: A search of PubMed and Medline was conducted for English-written articles relating to BPDCN, CD4+CD56+ hematodermic neoplasm, and blastic natural killer cell lymphoma. (elsevierpure.com)
2. Malignant tumours metastasize (a word which means breaking off pieces that are then transported to other parts of the body, where they lodge and resume growth) through lymphatic channels or blood vessels to lymph nodes, bones, lungs and other tissues in the body. (aloeveradamadeira.com)
Lymphoma2
MCL is a B-cell lymphoma that develops from malignant B-lymphocytes within a region of the lymph node known as the mantle zone. (rarediseases.org)
Methods: A search of PubMed and Medline was conducted for English-written articles relating to BPDCN, CD4 + CD56 + hematodermic neoplasm, and blastic natural killer cell lymphoma. (elsevierpure.com)
Epithelial6
A primary malignant neoplasm of epithelial liver cells. (lookformedical.com)
It ranges from a well-differentiated tumor with EPITHELIAL CELLS indistinguishable from normal HEPATOCYTES to a poorly differentiated neoplasm. (lookformedical.com)
Diagnosing non-epithelial malignancies in effusion specimens based entirely upon their cytomorphologic features is difficult because these neoplasms often exhibit considerable morphological overlap and their cytomorphology can differ from the original tumor. (cytojournal.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)
4 Malignant effusions caused by non-epithelial neoplasms are more frequently encountered in children than in adults. (cytojournal.com)
This is followed by coverage of neoplasms in the more traditional categories of epithelial, mesenchymal, and other categories. (abdominalkey.com)
Melanoma1
Typically, lymphedema-associated angiosarcomas occur in women who have undergone radical mastectomy for breast carcinoma and have had chronic lymphedema for many years (Stewart-Treves syndrome) or in the leg of patients as a consequence of radical inguinal lymphadenectomy for metastases from malignant melanoma (Kettles syndrome). (medscape.com)
Metastasis5
A case of solitary distant metastasis of lung cancer to the temporal bone presenting as acute unilateral facial palsy complicating preexisting chronic otomastoiditis is reported. (ejao.org)
Symptoms of temporal bone metastasis include hearing loss, vertigo, facial nerve paralysis, and tinnitus. (ejao.org)
Here, we report a case of isolated distant metastasis of lung cancer to the mastoid portion of the temporal bone in a patient whose primary tumor had been treated. (ejao.org)
As a manifestation of distant metastasis of lung cancer to the temporal bone was considered a feasible etiology at this point, further evaluation was performed. (ejao.org)
Metastases3
Abnormal growths of tissue that follow a previous neoplasm but are not metastases of the latter. (lookformedical.com)
Angiosarcomas are aggressive and tend to recur locally, spread widely, and have a high rate of lymph node and systemic metastases. (medscape.com)
3) Reports previously showed that temporal bone metastases were not observed in cancer patients in which the primary tumor was adequately treated. (ejao.org)
Anaplastic3
Anaplastic cancer (193) is very aggressive with a poor prognosis. (fortherecordmag.com)
An angiosarcoma (AS) is an uncommon malignant neoplasm characterized by rapidly proliferating, extensively infiltrating anaplastic cells derived from blood vessels and lining irregular blood-filled spaces. (medscape.com)
3. Malignant tumour ceils tend to be "anaplastic" (a word which means less well differentiated than normal cells into recognisable cell types of the tissue in which they arise). (aloeveradamadeira.com)
Prognosis5
Rhabdomyoblastic differentiation in a malignant peripheral nerve sheath tumor (MPNST) is termed malignant triton tumor (MTT), a rare neoplasm that poses a diagnostic dilemma in the differential diagnosis of neck masses and portends poor prognosis. (hindawi.com)
Malignant peripheral nerve sheath tumor (MPNST) is a rare soft tissue neoplasm with a poor prognosis. (hindawi.com)
It is very rare and has a more aggressive clinical course and worse prognosis than MPNST without rhabdomyoblastic differentiation [ 12 - 14 ]. (hindawi.com)
To further elucidate the natural history and prognosis of this rare neoplasm in the head and neck, we present a case of sporadic MTT arising in the neck with an unusual prognosis. (hindawi.com)
Data regarding diagnosis, prognosis, and treatment were analyzed.Conclusions: BPDCN is a rare aggressive disease that typically affects elderly patients. (elsevierpure.com)
Diagnosis7
In all cases of intranasal or pharyngeal neoplasm the diagnosis of meningioma, craniopharyngeoma and glioma should be considered as differential diagnosis to optimize the surgical procedure. (biomedcentral.com)
The neoplasm code should be sequenced first unless the functional condition meets the criteria for principal diagnosis. (fortherecordmag.com)
The diagnosis mandates that the lesion must have proven histologic differences from the primary neoplasm (carcinomas, lymphomas). (medscape.com)
Angiosarcoma of soft tissue is the first diagnosis in soft tissue sarcomas arising within the field of radiation, followed by malignant fibrous histiocytoma (MFH). (medscape.com)
When a known cancer patient whose primary disease is controlled presents with otologic symptoms and a history of chronic mastoid infection, metastatic carcinoma of the temporal bone must be considered as an uncommon, but possible diagnosis. (ejao.org)
The diagnosis of BPDCN is based on the characteristic cytology and immunophenotype of malignant cells coexpressing CD4, CD56, CD123, blood dendritic cell antigens 2 and 4, and CD2AP markers. (elsevierpure.com)
It has a non-debatable contribution to the diagnosis of hematolymphoid neoplasm as well as in minimal residual disease. (ijpmonline.org)
Lymphoid1
Multiple chromosomal abnormalities and gene mutations previously reported in patients with myeloid and selected lymphoid neoplasms were identified in approximately 60% of patients with BPDCN. (elsevierpure.com)
Carcinoma3
Mucoepidermoid carcinoma is a malignant neoplasm of exocrine glands that arises predominantly in salivary glands. (bvsalud.org)
The malignant lesions comprised three cases of ductal carcinoma in situ (DCIS) and 22 cases of infiltrating ductal carcinoma, not otherwise specified, IDC (NOS). (ijpmonline.org)
Metastatic carcinoma involving the temporal bone is an unusual occurrence. (ejao.org)
Tumor2
The goal of treatment of this tumor at the distal radius is complete removal of the tumor and reconstruction of the bone defect in order to preserve maximum function of the wrist joint. (jbstjournal.com)
We studied 5 consecutive cases of GCT involving the distal radius operated by en-bloc resection of tumor followed by reconstruction with ipsilateral non-vascularized fibular graft with a minimum 1 year follow-up. (jbstjournal.com)
Cancers1
Malignant neoplasms or cancers have several distinguishing features that enable them to be characterized as abnormal. (aloeveradamadeira.com)
Histologically1
The neoplasms may be histologically the same or different, and may be found in the same or different sites. (lookformedical.com)
Marrow3
Lymphatic tissues also include the thymus, a relatively small organ behind the breastbone that is thought to play an important role in the immune system until puberty, as well as the bone marrow, which is the spongy tissue inside the cavities of bones that manufactures blood cells. (rarediseases.org)
gastrointestinal tract epithelium, bone marrow, and hair follicles) is as rapid as that of a rapidly growing tumour. (aloeveradamadeira.com)
On the second hospital day, a transoral maxillary sinus biopsy was performed and bilateral bone marrow aspirates were obtained. (contemporarypediatrics.com)
Lesion2
CT scans may demonstrate skull base defects resulting from accidental or iatrogenic trauma, an underlying anatomic or developmental abnormality, or an erosive lesion such as a neoplasm. (medscape.com)
This revealed a diffuse, infiltrating soft tissue density lesion in the right mastoid bone. (ejao.org)
Malignancy1
Background: Blastic plasmacytoid dendritic cell neoplasm (BPDCN) is a rare hematological malignancy with an aggressive clinical course. (elsevierpure.com)
Tissue1
CT scan in bone window (A, D) reveals a soft tissue mass in the left frontal sinus without any signs of bone destruction or reaction. (biomedcentral.com)
Some malignant neoplasm progresses, it invades surrounding tissues, and metastasizes, and the malignant cells may then bear less resemblance to the normal cell of origin. (aloeveradamadeira.com)
Acute2
Acute liver failure may progress to exhibit cerebral dysfunction even HEPATIC COMA depending on the etiology that includes hepatic ISCHEMIA, drug toxicity, malignant infiltration, and viral hepatitis such as post-transfusion HEPATITIS B and HEPATITIS C. (lookformedical.com)
The overall response rate with aggressive acute lymphoblastic leukemia-type induction regimens was as high as 90%, but the durability of response was short. (elsevierpure.com)
Findings1
Because these findings suggested a malignant process, CT scans of the chest, abdomen, and pelvis were obtained. (contemporarypediatrics.com)
Intracranial masses1
There was no evidence of a connection of this sinonasal meningioma to other intracranial masses, as indicated in CT scan in bone window and MR imaging (Fig. 2 ). (biomedcentral.com)
Campanacci's staging system for giant cell tumour of the bone [5] was used for cortical breach. (jbstjournal.com)
The term "neoplasm", meaning new growth, is often used interchangeably with the term "tumour" to signify a cancerous growth. (aloeveradamadeira.com)
Correlations are often drawn between the degree of anaplasticity and the degree of aggressive invasiveness which a tumour displays. (aloeveradamadeira.com)
Cells1
The development of a less well differentiated malignant cell in a population of differentiated normal cells is sometimes called "dedifferentiation. (aloeveradamadeira.com)
Chronic1
Under the initial suspicion of a facial nerve complication stemming from chronic mastoiditis, a computed tomography (CT) of temporal bone was taken. (ejao.org)
Rare2
Conclusions: BPDCN is a rare aggressive disease that typically affects elderly patients. (elsevierpure.com)
However, there are rare occurrences of aggressive de novo carcinosarcomas of the parotid that have been reported. (ijpmonline.org)
Symptoms1
There may be no signs or symptoms with early-stage malignant thyroid nodules. (fortherecordmag.com)
Specimen1
This is a gross specimen from a proximal humerus bone angiosarcoma. (medscape.com)
Drugs1
Use additional code (U85) , if desired, to identify resistance, non-responsiveness and refractive properties of the neoplasm to antineoplastic drugs. (who.int)
Functional1
Sequencing of the thyroid neoplasm with the functional condition will depend on the circumstances of admission. (fortherecordmag.com)
Sites1
Specialists apply the term angiosarcoma to a wide range of malignant endothelial vascular neoplasms that affect a variety of sites. (medscape.com)
Affect1
Both genotoxic chemicals, which affect DNA directly, and nongenotoxic chemicals, which induce neoplasms by other mechanism, are included. (lookformedical.com)