MICROANATOMY

Detailed explanation-1: -Primary hyperparathyroidism occurs because of a problem with one or more of the four parathyroid glands: A noncancerous growth (adenoma) on a gland is the most common cause. Enlargement (hyperplasia) of two or more parathyroid glands accounts for most other cases.

Detailed explanation-2: -The main causes of hyperthyroidism are Graves’ disease, toxic multinodular goitre, and toxic adenoma.

Detailed explanation-3: -Parathyroid carcinoma is a rare cause of primary hyperparathyroidism, which is usually caused by a parathyroid adenoma and occasionally by primary parathyroid hyperplasia. Other rare causes are parathyroid cyst and ectopic secretion of parathyroid hormone (PTH) from a nonparathyroid tumor.

Detailed explanation-4: -Parathyroid adenomas are the most common cause of hyperparathyroidism (overactive parathyroid glands), which leads to an increased blood calcium level. Symptoms may include any of the following: Confusion. Constipation.

Detailed explanation-5: -Parathyroid adenoma They are the most common type of tumour that can develop in the parathyroid glands. A parathyroid adenoma usually forms in only one parathyroid gland. Less often, parathyroid adenomas can be found in 2 or 3 of the parathyroid glands.