GENERAL HISTOLOGY

Detailed explanation-1: -The parathyroid glands are 4 small, oval-shaped glands. They are located next to the 2 thyroid gland lobes in the neck. Each gland is often about the size of a pea.

Detailed explanation-2: -Background. The normal parathyroid gland weighs approximately 50–70 mg. Parathyroid adenomas (PTAs) are usually small, measuring < 2 cm and weighing < 1 gm [1]. Giant PTAs (GPTAs), although rare, are most commonly defined as weighing > 3.5 gm, with some reports describing weights up to 110 gm [2, 3].

Detailed explanation-3: -The weight of the pathologic specimen is considered to be the best measure of gland size, as opposed to gland length, due to the variable shape of parathyroid glands. Normal parathyroid glands generally weigh 20–40 mg, with glands of >60 mg usually considered abnormal by pathologists and surgeons.

Detailed explanation-4: -It is shaped like a butterfly, with the right lobe and left lobe connected by a thin piece of tissue called the isthmus. The parathyroid glands are four pea-sized organs found in the neck near the thyroid. The thyroid and parathyroid glands make hormones.