Synovial hemangioma

Case contributed by Dr Domenico Nicoletti

Presentation

Knee pain and swelling without trauma.

Patient Data

Age: 9
Gender: Male
X-ray

Soft tissue swelling with round calcifications (phleboliths). Bone is normal.

MRI

Lesion that completely occupies Hoffa’s body and extends into over patellar synovial recess. The lesion has heterogeneous signal, hyperintense on T2 and assumes MDC defining elongated vessels with a serpiginous course and some calcifications. Small formations of adipose tissue in the vascular spaces are detectable. 

Case Discussion

Synovial hemangioma is a neoplastic vascular proliferation or the outcome of trauma. Angiography is useful for the diagnosis and therapeutic embolization. The differential diagnosis is pigmented villonodular synovitis and lipoma arborescens.

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Case information

rID: 42544
Published: 26th Jan 2016
Last edited: 14th Aug 2019
Inclusion in quiz mode: Included

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