MEDULLARY BONE INFARCTS RADIOLOGY KNEE MRI

MEDULLARY BONE INFARCTS.

• This is a characteristic appearance of medullary bone infarcts. Most commonly they are in the diaphysis and metaphysis but in this case, they also extend to the epiphysis.

   

• The important thing to note here is that it's involving multiple areas. When there are multiple locations, think of an underlying cause such as SLE (vasculitis) or steroids.

   

• This patient had steroids.

• Thank you to Dr Joe Thomas for the case.

Bilateral medullary femoral and tibial serpiginous STIR hyper-intensity with extension into the femoral and tibial epiphysis.