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Thyroid follicular cells form a simple cuboidal epithelium and are arranged in spherical thyroid follicles surrounding a fluid filled space known as the colloid. The interior space formed by the follicular cells is known as the follicular lumen .
[1] [3] [4] [5] In the thyrotoxic phase, the follicular cells of the thyroid gland are damaged leading to release of pre-formed thyroid hormone and symptoms of thyrotoxicosis. The damage to the follicles impairs ability to produce and secrete thyroid hormones which then leads to a hypothyroid phase.
The thyroid, or thyroid gland, is an endocrine gland in vertebrates. In humans, it is a butterfly-shaped gland located in the neck below the Adam's apple. It consists of two connected lobes. The lower two thirds of the lobes are connected by a thin band of tissue called the isthmus (pl.: isthmi).
The plasma cells are polyclonal, with present germinal centers resembling the structure of a lymph node [5] (also called secondary lymphoid follicles, not to be confused with the normally present colloid-filled follicles that constitute the thyroid). [60] Atrophic colloid follicles are lined by Hürthle cells (cells with intensely eosinophilic ...
Colloid nodules may be initially identified as an unspecified kind of thyroid nodule. Follow-up examinations typically include an ultrasound if it is unclear whether or not there really is a nodule present. Once the presence of a nodule has been confirmed, the determination of the kind of thyroid nodule is done by fine needle aspiration biopsy. [7]
Berry advises patients to limit heat and chemical damage from things like excessive heat styling, bleaching, or harsh hair treatments, which can all break and thin the hair. “Always use a heat ...
Histopathology of thyroid parenchyma with autolytic changes seen at autopsy, with thyroid follicular cells sloughing off into the follicles. Autolysis is uncommon in living adult organisms and usually occurs in necrotic tissue as enzymes act on components of the cell that would not normally serve as substrates. These enzymes are released due to ...
Keratin treatments can help to repair damaged hair and improve its overall health and appearance. Biotin is a B vitamin that can help to promote healthy hair growth.