## Overview Right dorsal colitis is ulceration and inflammation of the right dorsal colon, strongly linked to nonsteroidal anti-inflammatory drug use, especially phenylbutazone. Signs include diarrhea, weight loss, low blood protein, ventral edema, and colic. Ultrasound may show thickening of the right dorsal colon. Stopping all nonsteroidal drugs is essential. ## Causes Nonsteroidal anti-inflammatory drug toxicity, most often phenylbutazone, but also flunixin or meloxicam. ## Diagnosis History of nonsteroidal use, hypoproteinemia, ultrasound, and exclusion of infectious diarrhea. ## Treatment Immediate discontinuation of all nonsteroidal drugs, dietary management (low-bulk feeds), sucralfate, and supportive care including plasma if protein is very low. Prognosis is guarded. ## Recovery and Prognosis Guarded. Early recognition improves the chance of recovery. ## Prevention Judicious use of nonsteroidal drugs, especially avoiding prolonged high doses.
diarrhea; weight loss; low protein; ventral edema; colic; history of nonsteroidal anti-inflammatory drug use
## Overview Right dorsal colitis is ulceration and inflammation of the right dorsal colon, strongly linked to nonsteroidal anti-inflammatory drug use, especially phenylbutazone. Signs include diarrhea, weight loss, low blood protein, ventral edema, and colic. Ultrasound may show thickening of the right dorsal colon. Stopping all nonsteroidal drugs is essential. ## Causes Nonsteroidal anti-inflammatory drug toxicity, most often phenylbutazone, but also flunixin or meloxicam. ## Diagnosis History of nonsteroidal use, hypoproteinemia, ultrasound, and exclusion of infectious diarrhea. ## Treatment Immediate discontinuation of all nonsteroidal drugs, dietary management (low-bulk feeds), sucralfate, and supportive care including plasma if protein is very low. Prognosis is guarded. ## Recovery and Prognosis Guarded. Early recognition improves the chance of recovery. ## Prevention Judicious use of nonsteroidal drugs, especially avoiding prolonged high doses.
diarrhea; weight loss; low protein; ventral edema; colic; history of nonsteroidal anti-inflammatory drug use