A case of implantation dermatosis that formed a tumor.
A 51-year-old man visited our hospital complaining of a tumor located above his lip. He had been hit on his upper left lip by a chopstick holder 2 months previously. The lesion turned into a tumor and gradually enlarged. The tumor was well circumscribed, smooth and covered with reddish, partially milk-white skin. During surgery to remove the tumor, a piece of a chopstick was found in the subcutaneous tissue, and a diagnosis of implantation dermatosis (ID) was made. On histology, the tumor appeared as an abscess that had increased fibroblasts, small vessels and a large number of neutrophils. In the Japanese published work, we found 86 cases of ID; three were similar to our case and had been clinically diagnosed as adnexal tumors. There were also six cases that showed abscess formation similar to our case on histology. In a survey of the published work from other countries, there were 44 ID cases. There were no common features found among the cases reported in the published work.
Kondoh
Akio
A
Division of Specialized Clinical Science (Dermatology), Tokai University School of Medicine, Kanagawa, Japan. akio-k@is.icc.u-tokai.ac.jp
Akasaka
Emiko
E
Yamamoto
Kozo
K
Mizutani
Kimihiko
K
Iwashita
Kenichi
K
Umezawa
Yoshinori
Y
Ohta
Yukinori
Y
Matsuyama
Takashi
T
Ozawa
Akira
A
D001707:Biopsy, Needle; D005145:Face; D005500:Follow-Up Studies; D005547:Foreign Bodies / Q000150:complications*; D005549:Foreign-Body Reaction / Q000209:etiology* / Q000473:pathology* / Q000601:surgery; D006801:Humans; D007150:Immunohistochemistry; D008297:Male; D008875:Middle Aged; D018570:Risk Assessment; D012720:Severity of Illness Index; D012867:Skin; D012871:Skin Diseases / Q000209:etiology* / Q000473:pathology / Q000601:surgery; D016896:Treatment Outcome