Author: Henry Haruthunian, DO
Co Author #1: Dr. Eric Sletten
Senior Editor: Justin Mark Young, MD, FAMSSM
Editor: Julie Creech-Organ, DO
Patient Presentation:
A 19-year-old collegiate baseball player presented for a routine pre-participation physical examination with a large, palpable mass and swelling noted over the left anterior thigh that had been present for two months at the time of evaluation.
History:
The patient sustained a left thigh injury while sliding head-first into second base during recreational baseball with friends. Initial evaluation by an outside primary care physician and a subsequent emergency department visit resulted in a presumptive diagnosis of a quadriceps hematoma. Conservative management was recommended. Despite this, the swelling persisted over the following weeks. Multiple aspirations were attempted in both clinic and emergency department settings, but the fluid collection repeatedly reaccumulated.
Physical Exam:
Physical examination revealed a large, fluctuant, boggy soft tissue swelling over the proximal left quadriceps measuring approximately 10 cm by 6 cm, with overlying healing ecchymosis. There was no associated erythema, warmth, or induration. The patient reported paresthesia and decreased sensation over the anterior quadriceps, though distal sensation and distal pulses remained intact. Left knee flexion was limited to 120 degrees due to mechanical discomfort; hip ROM was full and painless.
Click here to continue. Challenge yourself by writing down a broad differential diagnosis before moving to the next slide.