title: Cutaneous squamous cell carcinoma (SCC) arising in stump of amputated finger in a patient with resected glossal SCC.
abstract: BACKGROUND
  Cutaneous squamous cell carcinoma (SCC) of the hands and fingers are sometimes locally aggressive; with higher rates of regional metastasis than other cutaneous SCC, although distant metastasis is rare.
  
  
  METHODS
  We present the case of a 62-year-old Japanese man with double cancers: a tongue SCC and a cutaneous SCC. Swelling of the finger lesion developed gradually around the entire remaining middle finger after accidental amputation at the proximal interphalangeal joint. Histopathological examination of the tumor on the stump of the amputated finger indicated a well-differentiated SCC. The past history indicated surgery for SCC of the tongue 3 years earlier; with histopathology of moderately-differentiated SCC.
  
  
  CONCLUSIONS
  Since dedifferentiation is unlikely in metastatic tumors, the cutaneous SCC of the finger is unlikely to have originated from the tongue SCC. Alternatively, the double cancer may be two unrelated lesions or the tongue tumor could have originated from the cutaneous SCC.
authors.affiliation: Department of Orthopaedics and Rehabilitation Medicine, Faculty of Medical Sciences, University of Fukui, Matsuoka Shimoaizuki 23-3, Eiheiji, Fukui, 910-1193, Japan. kuchida@u-fukui.ac.jp
authors.forename: Kenzo
authors.initials: K
authors.lastname: Uchida
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Miyazaki
authors.forename: Hideaki
authors.initials: H
authors.lastname: Nakajima
authors.forename: Kohei
authors.initials: K
authors.lastname: Negoro
authors.forename: Daisuke
authors.initials: D
authors.lastname: Sugita
authors.forename: Shuji
authors.initials: S
authors.lastname: Watanabe
authors.forename: Mitsuo
authors.initials: M
authors.lastname: Yoshimura
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Itoh
authors.forename: Hisatoshi
authors.initials: H
authors.lastname: Baba
mesh_terms: D000672:Amputation Stumps / Q000473:pathology* / Q000601:surgery; D002294:Carcinoma, Squamous Cell / Q000473:pathology* / Q000601:surgery; D005385:Fingers / Q000473:pathology* / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local / Q000473:pathology* / Q000601:surgery; D012878:Skin Neoplasms / Q000473:pathology* / Q000601:surgery; D014059:Tongue / Q000473:pathology / Q000601:surgery; D014062:Tongue Neoplasms / Q000473:pathology / Q000601:surgery