Emergency department diagnosis of a quadriceps intramuscular loculated abscess/pyomyositis using dynamic compression bedside ultrasonography.

[pyomyositis]

A 73 -year -old man with a past medical history of myelodysplastic syndrome and recent chemotherapy presented to the emergency department with a 1 -week history of progressively increasing left thigh pain and swelling . His physical examination revealed left anterolateral diffuse thigh swelling with no erythema or warmth to palpation . The anterolateral quadriceps was markedly tender to palpation . Emergency department bedside dynamic compression ultrasonography that was performed on the left anterolateral thigh revealed a quadriceps intramuscular abscess with loculated yet movable pus .Bedside dynamic compression ultrasonography can assist the emergency or critical care physician in the diagnosis of quadriceps intramuscular abscess or pyomyositis .

Diseases
Validation

Diseases presenting "markedly tender" symptom

pyomyositis

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