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Indian J Pathol Microbiol. 2019 Oct-Dec;62(4):629-630. doi: 10.4103/IJPM.IJPM_193_18.

Primary actinomycosis of anterior abdominal wall: A rare occurrence, diagnosed on fine needle aspiration cytology.

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Department of Pathology, Seth G.S. Medical College and King Edward Memorial Hospital, Mumbai, Maharashtra, India.


Actinomycosis, a chronic suppurative and granulomatous infection, is caused by Actinomyces israeli. The common clinical presentations are cervicofacial, abdominal, and thoracic regions. Abdominal wall actinomycosis following pelvic or intraperitoneal involvement is known, but isolated abdominal wall involvement is extremely rare and can mimic malignancy. We report a case of primary actinomycosis of anterior abdominal wall, diagnosed on fine needle aspiration cytology (FNAC). Identifying fluffy colonies and branching swirling filaments positive for fungal and Gram stain on cytology smears aid correct diagnosis. FNAC is an effective and reliable tool for early diagnosis of actinomycosis. The treatment is centered around antibiotics, and thus it is essential to diagnose accurately and avoid unnecessary surgery.


Abdominal wall; actinomycosis; fine needle aspiration cytology


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