Schwannoma - thigh

Case contributed by Dr Maulik S Patel

Presentation

Anterior mid thigh swelling - 3 yrs. No trauma. No significant pain.

Patient Data

Age: 11 yrs
Gender: Female
Ultrasound

There is a well-defined ovoid lesion in region of interest.

Size                 - 40 mm  ( cranio-caudal ) x 35 mm ( transverse ) x 20 mm ( anteroposterior )

Location          - within superficial part of vastus lateralis muscle. It abutts fascia.

                       - Seperate from bone .

Morphology  - hypoechoic without calcification / cystic changes. 

                   - lobulations present.

                    - Posterior acoustic enhancement present.

                    - Not significantly compressible.

                    - There is ecogenic around lesion with echogenic triangular 'cap' at proximal and

                      distal end of the lesion.

Dopplar         - Significant vascularity is noted in lesion.      

Case Discussion

The lesion is a solid tumor with vascularity involving muscle of thigh. There was echogenic cap at proximal and distal end of lesion which is described in myxoma; however, there were few points againt that diagnosis.

Surgical excision was done.

Histopathological diagnosis - Schwannoma. 

(I have seen the histopathology report myself but can not upload because i don't have copyright)

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Case information

rID: 39254
Case created: 27th Aug 2015
Last edited: 21st Sep 2015
Inclusion in quiz mode: Included

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