Match each patient's clinical presentation with the most appropriate definitive surgical i… — USMLE Step 2 CK

Match each patient's clinical presentation with the most appropriate definitive surgical intervention or management step.

A $54$ -year-old woman with a newly diagnosed $1.8$ -cm invasive ductal carcinoma in the upper outer quadrant of the right breast; axillary ultrasound reveals no suspicious lymph nodes.Breast-conserving surgery with sentinel lymph node biopsy
A $42$ -year-old man with resistant hypertension, hypokalemia, suppressed plasma renin activity, elevated serum aldosterone, and a $2.5$ -cm unilateral adrenal adenoma.Unilateral laparoscopic adrenalectomy
A $36$ -year-old woman with a $2.5$ -cm thyroid nodule; fine-needle aspiration confirms medullary thyroid carcinoma, and serum calcitonin levels are markedly elevated.Total thyroidectomy with prophylactic central compartment lymph node dissection
A $30$ -year-old woman presenting with a $6$ -month history of spontaneous, unilateral, bloody nipple discharge; physical examination and mammography show no abnormalities.Subareolar duct excision
A $58$ -year-old woman with asymptomatic hypercalcemia ( $11.2$ mg/dL), elevated intact parathyroid hormone, and a sestamibi scan showing localized uptake in the right inferior neck.Minimally invasive parathyroidectomy

Answer

The presentations map directly to their standard-of-care surgeries: early breast cancer to breast-conserving surgery with sentinel node biopsy; primary hyperaldosteronism to laparoscopic adrenalectomy; medullary thyroid cancer to total thyroidectomy with central neck dissection; intraductal papilloma to subareolar duct excision; and primary hyperparathyroidism to minimally invasive parathyroidectomy.

Each vignette provides classic diagnostic criteria for a specific surgical disease. Breast-conserving surgery with sentinel node biopsy is indicated for early breast cancer. Laparoscopic adrenalectomy treats unilateral aldosterone-producing adenomas. Total thyroidectomy with central compartment dissection addresses the early lymphatic spread of medullary thyroid carcinoma. Subareolar duct excision treats and diagnoses intraductal papillomas causing bloody discharge. Minimally invasive parathyroidectomy is standard for a preoperatively localized parathyroid adenoma.

Step-by-Step Solution

Analyze each clinical vignette to establish the primary diagnosis.

Diagnoses identified: early-stage invasive ductal carcinoma, primary hyperaldosteronism (unilateral adenoma), medullary thyroid carcinoma, suspected intraductal papilloma, and primary hyperparathyroidism.

Accurate diagnosis based on clinical, laboratory, and imaging findings is required to select the guideline-directed surgical intervention.

Determine the standard surgical intervention for each specific pathology.

Matched each pathology to its correct respective procedure, ensuring appropriate surgical scope (e.g., including central node dissection for medullary thyroid cancer, and sentinel node biopsy for early breast cancer).

Surgical management in breast and endocrine surgery relies on precise pairing of disease stage and biological behavior with appropriate surgical techniques to balance oncologic or endocrine cure while minimizing morbidity.

Key Concept

Definitive Surgical Management of Breast and Endocrine Pathologies

Estimated Time:1m 30s

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