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Follicular thyroid cancer accounts for 15% of thyroid cancer and occurs more commonly in women over 50 years of age. Thyroglobulin (Tg) can be used as a tumor marker for well-differentiated follicular thyroid cancer. Thyroid follicular cells are the thyroid cells responsible for the production and secretion of thyroid hormones.
Thyroid neoplasm is a neoplasm or tumor of the thyroid. It can be a benign tumor such as thyroid adenoma , [ 1 ] or it can be a malignant neoplasm ( thyroid cancer ), such as papillary , follicular , medullary or anaplastic thyroid cancer . [ 2 ]
A follicular variant of papillary thyroid cancer also exists. [36] Newly reclassified variant: noninvasive follicular thyroid neoplasm with papillary-like nuclear features is considered an indolent tumor of limited biologic potential. Follicular thyroid cancer (10 to 20% of cases [35]) – occasionally seen in people with Cowden syndrome.
Deletions and mutations of TP53 (located on the short (i.e. "p") arm of chromosome 17 at position p13.1 (i.e. at 17p13.1 and encoding a tumor suppressor protein [17]); CDKN2Aand CDKN2A [18] (both located at 9p21.3 and respectively encoding cyclin dependent kinase inhibitor 2A and cyclin dependent kinase inhibitor 2B which regulate the cell ...
In situ follicular lymphoma is an accumulation of monoclonal B cells (i.e. cells descendent from a single ancestral cell) in the germinal centers of lymphoid tissue. These cells commonly bear a pathological genomic abnormality, i.e. a translocation between position 32 on the long (i.e. "q") arm of chromosome 14 and position 21 on chromosome 18's q arm.
The more aggressive forms of disease require treatment with chemotherapy, radiotherapy, immunotherapy and—in some cases—a bone marrow transplant. The use of rituximab has been established for the treatment of B-cell–derived hematologic malignancies, including follicular lymphoma (FL) and diffuse large B-cell lymphoma (DLBCL).
Histopathology of NIFTP, H&E stain. [1]Noninvasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP) is an indolent thyroid tumor that was previously classified as an encapsulated follicular variant of papillary thyroid carcinoma, [2] necessitating a new classification as it was recognized that encapsulated tumors without invasion have an indolent behavior, [2] and may ...
Proliferating trichilemmal cysts (also known as a pilar tumor, proliferating follicular cystic neoplasm, proliferating pilar tumor, and proliferating trichilemmal tumor) [1] is a cutaneous condition, characterized by proliferations of squamous cells forming scroll-like structures.