Abdominal actinomycosis misconceived as intestinal lymphoma:
Abdominal actinomycosis is a rare clinical entity and it is difficult to make the correct preoperative diagnosis because of its nonspecific clinical symptoms and varied radiological findings. The diagnosis is usually made after the patient undergoes an operation and tissue is available for pathological evaluation. When the diagnosis is made, the patient should be treated with the appropriate long-term antibiotics.

A 69-year-old male patient was transferred to our hospital complaining of a palpable mass, painful abdominal discomfort, weight loss, and night sweating. After colonoscopy and radiologic studies, our presumptive diagnosis was intestinal lymphoma combined with ileocecal intussusception. He was found to have abdominal actinomycosis after surgery and successfully treated with ampicillin for six months.

Source: International Journal of Surgery case reports

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