a = new Array(11); a[0] = "Incorrect" a[1] = "CORRECT. There are lymphoid follicles present in the thyroid. Hashimoto's thyroiditis is one of the most common causes for hypothyroidism in adults. Early in the course the chronic inflammation predominates, but atrophy with fibrosis ensue." a[2] = "CORRECT. This is an adrenal cortical adenoma. When such an adenoma secretes aldosterone (the most common cause for hyperaldosteronism) the plasma renin is decreased and there is hypokalemia." a[3] = "CORRECT. The papillary infoldings with scalloping of colloid are typical for Grave's disease, and the very high thyroxine is consistent with hyperthyroidism." a[4] = "CORRECT. A neuroblastoma is one of the more common childhood malignant neoplasms, and it often arises in the adrenal." a[5] = "CORRECT. There is phosphate retention with chronic renal failure, depressing serum calcium and turning on the parathyroids, leading to secondary hyperparathyroidism with subsequent metabolic bone disease that may include osteoporosis, osteitis fibrosa cystica, and brown tumor of bone." a[6] = "CORRECT. This is a papillary carcinoma of the thyroid. Note the clear vacuolated nuclei, the papillary pattern, and the small concretion known as a psammoma body." a[7] = "CORRECT. The clinical history suggests an acute infection. The organism that can produce such a fulminant disease is Neisseria meningitidis. The adrenals are dark red-black because of the extensive hemorrhage with Waterhouse-Friderichsen syndrome." a[8] = "CORRECT. This is a craniopharyngioma with squamoid epithelium (resembling Rathke's pouch remnants) interspersed with cystic spaces. Though histologically benign appearing, these tumors invade and erode surrounding bone, making removal difficult and recurrence common." a[9] = "CORRECT. This is a parathyroid adenoma with a rim of normal parathyroid on top of the adenoma. Hypercalcemia would have been present. Respiratory tract hemorrhage is not a complication of hypercalcemia." a[10] = "CORRECT. This is amyloid deposition within an islet of Langerhans, a feature sometimes seen in patients with type II diabetes mellitus in which there is a relative, not absolute, lack of insulin." a[11] = "QUESTIONS: 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 "