PTX could decelerate infiltration of leukocytes through thyroid follicles
Presence of complex architecture, stromal fibrosis, C cells infiltrating the stroma outside of the basement membrane of thyroid follicle
, and presence of amyloid are hallmarks of medullary carcinoma.
The central lumen of the thyroid follicle
contains colloid, which is a substance rich in thyroglobulin, an iodinated glycoprotein, detected by the positive PAS reaction (KIERSZENBAUM; TRES, 2012), as observed in C.
Heterotopic inclusions Lymph nodes commonly involved Breast tissue Axillary Aggregate of nevus cells Axillary Blue nevus Axillary Squamous epithelium Cervical and peripancreatic Salivary gland tissue Cervical Thyroid follicles
Cervical Decidual tissue Pelvic Epithelium of paramesonephricus type Pelvic Intestinal glands Mesenteric Mesothelial cells Mediastinal and retroperitoneal Pantanowitz & Upton, 2003.
The thyroid follicle
is the secretory unit of the thyroid gland and consists of an outer layer of epithelial cells that encloses the colloid.
The resulting iodothyronines are then reversibly combined with the storage protein, thyroglobulin, within the lumen of each of the thyroid follicles
(Leatherland 1988, 1993).
This variation constitutes approximately 12% of Hashimoto thyroiditis and is characterized by extensive fibrosis with atrophy of the thyroid follicles
and squamous metaplasia of the residual follicular cells.
However, after total excision of the submental mass, the pathology report described a well-encapsulated mass composed of variable sized thyroid follicles
, without evidence of invasion.
Histologically benign struma ovarii contain thyroid follicles
of variable sizes filled with colloid.
13,14) Histopathologically, struma ovarii is composed of various-sized thyroid follicles
filled with pink-staining, homogenous, gelatinous colloid, lined with cuboidal or columnar epithelium, and separated with internal septications.
Ectopic thyroid follicles
in the sub mucosa of the duodenum.
These thyroid-stimulating immunoglobulins (TSIs) thus mimic the action of TSH, binding to and activating the thyrotropin receptor, producing not only excess secretion of thyroid hormones, but hypertrophy and hyperplasia of the thyroid follicles