Enostosis-like lesions in equids: 79 cases (1997-2009).

Abstract

OBJECTIVE: To evaluate equids with enostosis-like lesions (ELLs) and document the clinical and epidemiological features of this disease. DESIGN: Retrospective case series. ANIMALS: 79 equids with a scintigraphic diagnosis of at least 1 ELL on ≥ 1 occasion. PROCEDURES: Medical records of 4,992 equids that underwent bone scintigraphy between March 1997 and March 2009 were reviewed; 78 horses and 1 pony had a scintigraphic diagnosis of an ELL. For those equids, signalment; physical, scintigraphic, radiographic, and lameness examination results; and outcome were reviewed. RESULTS: Of the 79 equids, 4 (5.1%) had anatomically distinct ELLs on 2 (n = 3) or 4 (1) separate occasions that caused lamen..