title: Penile actinomycosis clinically diagnosed as an epidermal cyst: a case report.
abstract: A 27-year-old man presented at our hospital with a 1.5 cm, spherical, soft and movable subcutaneous mass at the mid portion of the ventral aspect of the penile shaft. The possibility of an epidermal cyst was considered and a simple resection was performed. Histologically, the lesion was a unilocular cyst without an epithelial lining, containing eosinophilic necrotic material and a few dispersed scalloped sheets of actinomycotic granules. The centre of the largest granular body demonstrated many fragments of foreign substance. The patient was treated successfully with combined antibiotic therapy.
authors.affiliation: Department of Pathology, College of Medicine, Hanyang University, Seoul, South Korea.
authors.forename: Kyueng-Whan
authors.initials: KW
authors.lastname: Min
authors.forename: Sung Yul
authors.initials: SY
authors.lastname: Park
authors.forename: Seung Sam
authors.initials: SS
authors.lastname: Paik
mesh_terms: D000196:Actinomycosis / Q000175:diagnosis*; D000328:Adult; D003937:Diagnosis, Differential; D004814:Epidermal Cyst / Q000175:diagnosis* / Q000382:microbiology; D006801:Humans; D008297:Male; D010409:Penile Diseases / Q000175:diagnosis* / Q000382:microbiology; D017192:Skin Diseases, Bacterial / Q000175:diagnosis*