Pseudo-colonic carcinoma caused by abdominal actinomycosis: report of two cases

Abstract

Postoperatively, pathologic examination confirmed the diagnosis of abdominal actinomycosis in which the characteristic finding of sulfur granules in the resected specimen was demonstrated. After surgery, the patients continued antibiotic treatment with ampicillin for 2 months at our OPD and had no signs of recurrence 1 year after surgery.

Periappendiceal Actinomycosis Presenting as Acute Appendicitis

“…Abdominal actinomycosis is a rare and insidious disease [7,8]. The overall incidence of actinomycosis is virtually impossible to ascertain since failure to consider it as a diagnosis and difficulty confirming it lead to under-reporting [9].…”

“…The differential diagnosis of abdominal actinomycosis should include Crohn's disease, ulcerative colitis, diverticulitis, neoplasms, and intestinal tuberculosis [8,11]. The definitive diagnosis of actinomycosis requires microscopic proof of either the pathogen itself or the presence of specific "sulfur granules" [8].…”

“…The definitive diagnosis of actinomycosis requires microscopic proof of either the pathogen itself or the presence of specific "sulfur granules" [8].…”

Primary gastric actinomycosis: report of a case diagnosed in a gastroscopic biopsy

“…Actinomycosis in human is most commonly caused by Actinomyces israelii [1,3,[21][22][23][24][25][26] which is an endogenous commensal present in the oral and GI-tract flora [9,10,12,22,27]. Actinomycetes typically invade injured mucosa with opportunistic infection occuring if there is a break in the mucosal barrier.…”

Abdominopelvic Actinomycosis Associated With an Intrauterine Device and Presenting With a Rectal Mass and Hydronephrosis: A Troublesome Condition for the Clinician

“…A colon carcinoma often is the provisional diagnosis before the identification of Actinomyces. 6 We treated a patient who had abdominopelvic actinomycosis and presented with right hydronephrosis and a rectal mass.…”