Post-injection Gluteal hematoma (intramuscular )

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Post-injection
Gluteal Hematoma

Intramuscular gluteal hematoma ultrasound case study

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Reporting Panel

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Buttock Pathology

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Case Study

USG

Post-injection Gluteal Hematoma (Intramuscular)

CASE–1

Clinical History

Patient presents with painful swelling in the gluteal region following recent intramuscular injection.

Ultrasound Findings

Ultrasound examination of the gluteal region demonstrates a heterogeneous intramuscular collection within the gluteal musculature at the injection site. Internal echogenic clot/debris is seen. No significant internal vascularity is demonstrated on color Doppler imaging. Mild surrounding soft tissue edema may be present. No definite abscess formation is identified.

Impression

Ultrasound features are suggestive of post-injection intramuscular gluteal hematoma.

Key Learning Points

• Recent intramuscular injection history is an important clue.
• Hematoma appears as a heterogeneous intramuscular collection.
• Internal echoes/debris may represent clot material.
• Color Doppler usually shows no internal vascularity.
• Peripheral hyperemia may suggest inflammation or secondary infection.
• Abscess, injection granuloma, seroma, and soft tissue tumor are important differentials.

Recommendation

Clinical correlation is advised. Follow-up ultrasound may be considered if swelling increases, pain persists, fever develops, or secondary infection is suspected.