history of leukemia s/p BMT. History of chronic steroid use. History: Lucency and sclerosis at the medial talar dome which may represent osteochondritis dissecans Right ankle: There are vertically oriented linear T1 dark signals through the body/neck of the talus (series 7 image 13) and anterior process of the talus (series 7 image 17), likely representing nondisplaced fractures. There is diffuse bone marrow edema of the talus and subchondral fluid in the talar dome. There is heterogeneous bone marrow edema in the epiphysis and metaphysis of the distal tibia, likely representing bone infarction. There is small joint effusion and ankle soft tissue edema.Left ankle: Crescentic low T1 signal in the talar dome, probably representing osteochondritis dissecans (series 9 image 14). There is diffuse underlying bone marrow edema of the talus. There is heterogeneous bone marrow edema in the epiphysis and metaphysis of the distal tibia, likely representing bone infarction. There is small joint effusion.
1. Nondisplaced fractures through the right talus.2. Osteochondritis dissecans of the left talar dome. 3. Likely bone infarctions of bilateral distal tibia.