Enostosis -like lesions. Katie Phillips. Hanz accession 147214. 12 yr old warmblood gelding Used for dressage 2 week history of lameness Presented for evaluation of a sore back. 3/5 Lame RF & LH. No change with flexion Could not be blocked . Hanz RF.
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Differentials: enostosis-like lesion, or less likely fracture, osteomyelitis, bone infarct, osteonecrosis. VRUS 2009
Well circumscribed intramedullary sclerosis with no apparent involvement of the cortex.
Similarities to Canine Panosteitis
IMAGING DIAGNOSIS—ENOSTOSIS-LIKE LESION IN THE FEMUROF A HORSESUSANNE M. STIEGER-VANEGAS, HEGE KIPPENES-SKOGMO, EBBA NILSSONVeterinary Radiology & Ultrasound, Vol. 50, No.5, 2009, pp 509–512.
There are regions of intense medullary T2-hyperintensity in the third metatarsal bone at the level of the nutrient artery. This appearance is consistent with enostosis but hematogenous osteomyelitis could also have this appearance.