title: Perianal tick-bite lesion caused by a fully engorged female Amblyomma testudinarium.
abstract: A perianal tick and the surrounding skin were surgically excised from a 73-year-old man residing in a southwestern costal area of the Korean Peninsula. Microscopically a deep penetrating lesion was formed beneath the attachment site. Dense and mixed inflammatory cell infiltrations occurred in the dermis and subcutaneous tissues around the feeding lesion. Amorphous eosinophilic cement was abundant in the center of the lesion. The tick had Y-shaped anal groove, long mouthparts, ornate scutum, comma-shaped spiracular plate, distinct eyes, and fastoons. It was morphologically identified as a fully engorged female Amblyomma testudinarium. This is the third human case of Amblyomma tick infection in Korea.
authors.affiliation: Department of Parasitology, College of Medicine, Seonam University, Namwon 590-711, Korea.
authors.forename: Jin
authors.initials: J
authors.lastname: Kim
authors.affiliation: Department of Colorectal Surgery, Kangmoon Surgical Clinic, Gwangju 502-835, Korea.
authors.forename: Haeng An
authors.initials: HA
authors.lastname: Kang
authors.affiliation: Department of Pathology, Chonnam National University Medical School, Gwangju 501-746, Korea.
authors.forename: Sung Sun
authors.initials: SS
authors.lastname: Kim
authors.affiliation: Department of Parasitology, College of Medicine, Seonam University, Namwon 590-711, Korea.
authors.forename: Hyun Soo
authors.initials: HS
authors.lastname: Joo
authors.affiliation: Department of Pharmacology, College of medicine, Seonam University, Namwon 590-711, Korea.
authors.forename: Won Seog
authors.initials: WS
authors.lastname: Chong
mesh_terms: D000368:Aged; D001003:Anal Canal / Q000293:injuries* / Q000469:parasitology / Q000473:pathology* / Q000601:surgery; D000818:Animals; D005260:Female; D006651:Histocytochemistry; D006801:Humans; D026863:Ixodidae / Q000033:anatomy & histology / Q000254:growth & development*; D007723:Korea; D008297:Male; D008853:Microscopy; D012867:Skin / Q000469:parasitology / Q000473:pathology; D064927:Tick Bites / Q000175:diagnosis* / Q000473:pathology* / Q000601:surgery; D013984:Tick Infestations / Q000175:diagnosis* / Q000473:pathology* / Q000601:surgery
keywords: Amblyomma testudinarium; histopathology; human; tick