Pseudotumoral Actinomycosis Mimicking Malignant Colic Disease: A Case Report and Literature Review.

Abdominal actinomycosis is a rare, chronic, and often unrecognized suppurative disease. It is caused by an anaerobic gram-positive bacterium, most commonly . Colonic actinomycosis is rarely reported and may be responsible for a pseudotumoral syndrome leading, in the suspicion of malignancy, to a large and mutilating excisional surgery.