Huhle cells seen in ?
**Core Concept**
Huhle cells, also known as Hurthle cells, are a type of epithelial cell characterized by their large size, abundant cytoplasm, and abundant mitochondria. They are often found in conditions associated with autoimmune thyroiditis, where the immune system attacks the thyroid gland.
**Why the Correct Answer is Right**
Hashimoto thyroiditis is an autoimmune condition where the immune system produces antibodies against thyroid peroxidase (TPO), leading to inflammation and damage to the thyroid gland. Huhle cells are a hallmark of this condition, as they are often found in the thyroid gland of affected individuals. The presence of Huhle cells is a diagnostic feature of Hashimoto thyroiditis, and they are thought to be a result of the chronic stimulation of the thyroid gland by thyroid-stimulating hormone (TSH).
**Why Each Wrong Option is Incorrect**
**Option A:** Papillary carcinoma is a type of thyroid cancer, but it is not typically associated with Huhle cells. Papillary carcinoma is characterized by its distinctive nuclear features, such as nuclear grooves and pseudoinclusions.
**Option C:** Granulomatous thyroiditis, also known as de Quervain thyroiditis, is an inflammatory condition of the thyroid gland, but it is not typically associated with Huhle cells. This condition is characterized by the presence of granulomas in the thyroid gland.
**Option D:** Thyroglossal cyst is a congenital anomaly of the thyroid gland, but it is not typically associated with Huhle cells. Thyroglossal cysts are formed from the remnants of the thyroglossal duct, which is an embryonic structure that gives rise to the thyroid gland.
**Clinical Pearl / High-Yield Fact**
Huhle cells are often found in the thyroid gland of individuals with Hashimoto thyroiditis, but they can also be found in other conditions, such as follicular carcinoma and medullary thyroid carcinoma. It is essential to consider the clinical context and histopathological features when diagnosing thyroid conditions.
**β Correct Answer: B. Hashimoto Thyroiditis**