Post traumatic soft tissue cyst - knee

Case contributed by Dr Maulik S Patel

Presentation

Anterior knee trauma - 2 mths back. C/o non painful swelling - anterior knee.

Patient Data

Age: about 35 - 40 yrs
Gender: Female
Modality: Ultrasound

The swelling is a well-defined thin wall predominently anechoic cyst in subcutaneous plane of suprapatellar knee region.

There are few thin internal septa and a fat globule within lesion.

Lesion wall / septa do not show vascularity.

Approximate size - 36 x 32 x 13  mm

No supra-patellar knee effusion is noted.

Case Discussion

Findings favour post traumatic soft tissue cyst in subcutaneous plane of anterior knee.

If morphologically similar lesion is noted in greater trochanteric region along with trauma history; it is called as Morel Lavallée lesion. 

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Case Information

rID: 38404
Case created: 18th Jul 2015
Last edited: 3rd Oct 2015
Inclusion in quiz mode: Included

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