title: Skeletal metastasis in tricholemmal carcinoma.
abstract: Tricholemmal carcinoma is an extremely rare cutaneous adnexal tumor, not exceeding 1-2 cm in diameter in some reported cases. The few reports describe only a greater histologic malignancy. Some cases of recurrences have been reported, and metastasis of the soft tissue was described once by Amaral et al in 1984. In the current patient with tricholemmal carcinoma of the right distal thigh, the primary tumor was unusually large. The first detected metastasis was localized in the right inguinal lymph nodes. Five years after diagnosis of tricholemmal carcinoma a metastasis of the left tibia and fibula were diagnosed. To our knowledge, an osseous metastasis in tricholemmal carcinoma has not been described. It is possible that a relationship between the extraordinary size and the osseous metastasis exists in the current patient.
authors.affiliation: Department of Orthopedic Surgery, Institute of Pathology, University Hospital, Freiburg, Germany. KNOELLER@CHll.UKL.UNI-FREIBURG.DE
authors.forename: S M
authors.initials: SM
authors.lastname: Knoeller
authors.forename: M
authors.initials: M
authors.lastname: Haag
authors.forename: C-P
authors.initials: CP
authors.lastname: Adler
authors.forename: A
authors.initials: A
authors.lastname: Reichelt
mesh_terms: D001859:Bone Neoplasms / Q000556:secondary* / Q000628:therapy; D002277:Carcinoma / Q000473:pathology*; D003131:Combined Modality Therapy; D003937:Diagnosis, Differential; D005360:Fibula / Q000473:pathology; D006801:Humans; D008207:Lymphatic Metastasis; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local; D018295:Neoplasms, Basal Cell / Q000556:secondary* / Q000628:therapy; D012878:Skin Neoplasms / Q000473:pathology*; D013977:Tibia / Q000473:pathology