Posttraumatic soft-tissue cyst - leg
Blunt trauma to left lower leg - antero-medial aspect - 5 wks back. C/o developing swelling locally after 3 wks of trauma. No pain locally. Referred for ultrasound for the lesion in leg.
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There is an anechoic lesion in subcutaneous plane of distal leg --- anterior - medial aspect.
Thin perceptible wall is noted around most part of the lesion.
Non-mobile fat globules are noted within; anchored by few thin septa.
Lesion is compressible.
No flow is noted in wall.
Approximate Size : 53 x 35 x 20 mm.
Findings of post traumatic ( Blunt trauma ) encapsulated collection is subcutaneous plane of leg.
If morphologically similar lesion is noted over greater trochanter region of thigh, it is called Morel Lavallée lesion.