Post traumatic soft-tissue cyst - in prepatella region

Case contributed by Dr Maulik S Patel


Single episode of Trauma to prepatellar region - 6 wks. C/o local swelling. Referred for ultrasound of local swelling.

Patient Data

Age: about 40 - 45 yrs
Gender: Female

A predominently anechoic collection with well-defined thin wall is noted in prepatellar soft tissue.

Few avascular thin septa and a nodule ( probably fat globule ) are noted.

Patellar and quadriceps tendon are normal.

Patellar cortex is intact.

No supra or infrapatellar knee effusion.

Case Discussion

If a morphologically similar lesion presents with similar clinical history but located over greater trochanter of femur, it is then called a Morel Lavallée lesion.

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Case information

rID: 26408
Published: 20th Dec 2013
Last edited: 16th Jul 2018
Inclusion in quiz mode: Included

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