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Fibromyalgia — USMLE Step 3 MCQ

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ModerateAmbulatory Medicine / Primary CareFibromyalgiaUSMLE Step 3

A 35-year-old woman has months of widespread pain, poor sleep, fatigue, and difficulty concentrating. She has tenderness in the neck, shoulders, hips, and back. ESR, creatine kinase, TSH, and CBC are normal. There is no synovitis or weakness. Which of the following is the most likely diagnosis?

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Correct answer: CFibromyalgia

Diffuse pain with fatigue, sleep disturbance, cognitive symptoms, and normal inflammatory and muscle tests is most consistent with fibromyalgia.

Reference: ACR fibromyalgia criteria; USMLE Step 3 Content Outline