Intra-articular venous malformation

Case contributed by Maulik S Patel
Diagnosis almost certain


Knee pain.

Patient Data

Age: 25 years
Gender: Male

Note: This case has been tagged as "legacy" as it no longer meets image preparation and/or other case publication guidelines.

Vascular malformation lower limb - tiny flake of calcification in Hoffa's fat pad along with loss of normal fat density .

  • first 5 images are of the knee
  • image 6 - ankle US near head of 1st metatarsal
  • images 7 and 8 - foot US near 1st metatarsal head

Case Discussion

A flake of calcification is seen in Hoffa's fat pad and there is inhomogeneous soft tissue haziness in the region replacing normal fat density.

US - Vascular channels are noted in Hoffa's fat pad and around knee.

Patient pointed to a soft tissue bulge in foot near the 1st metatarsal head. It shows multiple vascular channels.

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