Outcome of Surgical and Medical Management of Cecal Impaction in 150 Horses (1991-2011).

Objective: To evaluate short- and long-term outcome after medical and surgical management of horses with cecal impaction and to determine reasons for death or euthanasia.

Study Design: Retrospective case series.

Animals: Horses (n = 150).

Decreased radiopharmaceutical uptake (photopenia) in delayed phase scintigraphic images in three horses.

Decreased radiopharmaceutical uptake, photopenia, in delayed phase scintigraphic images is recognized in people but has only been reported rarely in horses. We describe three horses with septic osteitis, bone sequestrum formation, or distal limb thrombosis that had photopenia of the affected extremity. Photopenia may indicate the presence of ischemia and can be used to facilitate clinical decision making and prognosis assessment