Dietle’s crises, are seen in
Dietle's crises are a classic sign in certain medical conditions. From what I remember, Dietle's crises refer to episodes of hypotension, tachycardia, and sweating that occur during a physical exam when pressure is applied to a mass, causing a sudden release of hormones. This is typically associated with pheochromocytoma. Pheochromocytomas are tumors of the adrenal medulla that secrete catecholamines, leading to hypertension. When a doctor palpates the abdomen, the tumor might be stimulated, causing a surge of epinephrine and norepinephrine, resulting in Dietle's crisis.
So the correct answer should be pheochromocytoma. Now, the options A-D would likely include other adrenal or endocrine tumors. Let's assume the options were something like:
A. Adrenal adenoma
B. Carcinoid tumor
C. Pheochromocytoma
D. Medullary thyroid carcinoma
In that case, the correct answer is C. The other options don't typically cause Dietle's crises. Adrenal adenomas might cause hyperaldosteronism or Cushing's, but not the paroxysmal hypertension from catecholamine release. Carcinoid tumors release serotonin, leading to carcinoid syndrome with flushing and diarrhea, not the same symptoms. Medullary thyroid carcinoma is associated with calcitonin and C-cell hyperplasia, not catecholamines.
Clinical pearl: Remember that Dietle's crisis is a key diagnostic clue for pheochromocytoma. During exams, if a patient with a known abdominal mass experiences sudden hypertension or tachycardia upon palpation, suspect pheochromocytoma. This is a high-yield point for exams like NEET PG and USMLE.
**Core Concept**
Dietle's crises (also called Dietl's crises) are paroxysmal episodes of hypertension, tachycardia, and diaphoresis triggered by palpation of an adrenal mass. They occur in **pheochromocytoma**, a catecholamine-secreting tumor of the adrenal medulla. The mechanism involves mechanical stimulation of the tumor, leading to sudden release of epinephrine and norepinephrine.
**Why the Correct Answer is Right**
Pheochromocytomas arise from chromaffin cells in the adrenal medulla and secrete excess catecholamines. Palpation or pressure on the tumor during a physical exam stimulates these cells, causing a surge of epinephrine and norepinephrine. This leads to acute vasoconstriction, tachycardia, and the classic triad of symptoms: hypertension, sweating, and palpitations. The episodic nature of symptoms (not constant hypertension) differentiates pheochromocytoma from other causes of hypertension.
**Why Each Wrong Option is Incorrect**
**Option A: Adrenal adenoma** – These are benign tumors that typically cause hyperaldosteronism (Conn’s syndrome) or cortisol excess (Cushing’s syndrome), not catecholamine