Pituitary Tumors and Sheehan Syndrome is part of the Endocrine System section of Medicine. Practise 15 exam-style MCQs for NEET PG, FMGE, INI-CET and NEET SS, each with the correct answer and a detailed explanation.
Pituitary Tumors and Sheehan Syndrome MCQs turn on recognising pituitary apoplexy as an emergency, tracing hyperprolactinaemia through adenomas and drug causes, and linking prolactinoma with MEN-1 parathyroid disease — high-yield endocrine reasoning for NEET PG, INI-CET and NEET SS.
HPV associated head and neck tumors are seen in: Younger age Multiple sexual partners Oral sex Better prognosis Reference: Harrison's Principles of Internal Medicine, 21 st ed, Ch: 77, Pg: 590
Pituitary apoplexy is an endocrine emergency characterized by hypotension, hypoglycemia, head ache, bilateral visual symptoms, ophthalmoplegia and coma and death in severe cases. It occurs in a pre existing adenoma of the pituitary or spontaneously in post partum, sickle cell anemia, diabetes, hypertension or shock.
Her symptoms are consistent with hyper-prolactinaemia . Raised prolactin has many causes including pituitary tumors (micro- and macroadenomas), drug treatment (some antidepressants like tricyclic antidepressants, antiemetics and cimetidine), pregnancy, stress, hypothyroidism (because thyrotropin-releasing hormone (TRH) stimulates TSH and prolactin in primary hypothyroidism) and renal failure (prolactin accumulates in renal failure but not in hepatic impairment). While hyperprolactinemia can be present in hypothyroidism, it is usually associated with menorrhagia rather than amenorrhoea. Polycystic ovarian syndrome may be associated with amenorrhea and mildly raised prolactin levels, but unlikely to result in galactorrhea. Reference : Harrison's Principles of Internal Medicine 21 st edition Page 2909
Parathyroid hyperplasia is seen in the vast majority of patients with multiple endocrine neoplasia type 1 (MEN-1), and hypercalcaemia is the most common presenting feature of the condition. Hypercalcaemia may be discovered incidentally or because it is symptomatic, but the symptoms are often non-specific. Most common GEP-NET in MEN1 syndrome is gastrinoma and non-functional pancreatic NET Pituitary tumors occur in about 30% of patients: over a half are prolactinomas. Medullary-cell carcinomas of the thyroid and pheochromocytomas occur in MEN-2 but not in MEN-1. Reference: Harrison's Principles of Internal Medicine 20 th edition Chapter:381 Page number:2746-48
Excess iodide transiently inhibits thyroid iodide organification, a phenomenon known as the Wolff-Chaikoff effect. Normal thyroid gland escapes from this inhibitory effect & iodide organification resumes. In patients with underlying autoimmune thyroid disease, suppressive action of high iodide may persist. Jod Basedow phenomenon refers to the increased thyroid hormone synthesis from excessive iodide. Reference: Harrison's Principles of Internal Medicine 21 st edition Page:2936
Pituitary Tumors and Sheehan Syndrome MCQs turn on recognising pituitary apoplexy as an emergency, tracing hyperprolactinaemia through adenomas and drug causes, and linking prolactinoma with MEN-1 parathyroid disease — high-yield endocrine reasoning for NEET PG, INI-CET and NEET SS.
MedLadder includes 15 curated MCQs for Pituitary Tumors and Sheehan Syndrome under Medicine (Endocrine System), covering NEET PG, FMGE, INI-CET and NEET SS preparation.
