Serial sectioning of thyroid follicles showed thyroid hyperplasia with increased follicular epithelial cell
height and reduced colloid in all groups of fish that had been exposed to perchlorate for 28 days, compared with control fish.
The histologic differential diagnosis includes palpation thyroiditis (histiocytes, lymphocytes, and no neutrophils), lymphocytic thyroiditis (oxyphilic [Hurthle, oncocytic] follicular epithelial cell
metaplasia with mature lymphocytes and plasma cells arranged around germinal centers), and Riedel's thyroiditis (vasculitis and fibrosis).
The diagnosis of Hashimoto's thyroiditis was confirmed by finding lymphocytic infiltrates in clusters of follicular epithelial cell
, Hurthle cell changes and increased number of lymphocytes in the background and of colloid goiter by the presence of cohesive monolayer sheets or poorly cohesive clusters of follicular epithelial cells
, bare nuclei, macrophages and abundant colloid, multinucleated giant cells, epithelioid cell clusters and anisonucleosis.
Follicular Neoplasm: TIC Smear Showing Follicular Epithelial Cells
Arranged in Repetitive Follicular Pattern.
The initial hypothesis for the current work was that follicular dermal cells, when cocultured with pluripotent ESCs, might induce differentiation along the lineage of follicular epithelial cells
. The inductive capacity of hair follicle dermal cells has been well documented [1, 2].
Diseases of the thyroid can arise from follicular epithelial cells
or from C cells and include hyperplastic and neoplastic processes.
In a study recently published in Genes & Development, researchers at the University of Texas Southwestern Medical Center, Dallas, identified hair shaft progenitors in the matrix that are specific to the hair shaft and not to follicular epithelial cells
. (1) These hair shaft progenitors express transcription factor KROX20, which expresses stem cell growth factor necessary for hair pigmentation by maintenance of differentiated melanocytes.
LiVolsi and Merino suggested that, in most cases, squamous cell carcinomas appear as a result of metaplasia of follicular epithelial cells
Hurthle cells originate from follicular epithelial cells
and are characterized by ample, granular cytoplasm and prominent nucleoli .
Given that the basal plasma membrane of hindgut epithelial cells was recovered in Band 2 (Azuma et al., 2012), it was predicted that ovarian Band 2 preparations would contain the basal plasma membrane of follicular epithelial cells
and the oocyte plasma membrane.
the presence of at least six groups of well-visualised follicular epithelial cells
with at least 10 cells in each group.
The immune-system abnormality is mediated by antibodies to the thyrotropin receptor found on follicular epithelial cells
. When the most specific antibody, known as thyroid-stimulating immunoglobulin (TSI), is bound to the thyrotropin receptor, the TSI mimics the action of pituitary thyrotropin and stimulates the follicular epithelium to produce hormone.