title: Metastasizing dermatofibroma in lung.
abstract: Benign dermatofibroma is very common skin tumor and can very rarely metastasize. We report a case of metastasizing dermatofibroma on a 36-year-old woman who presented multiple bilateral lung nodules. She underwent incisional biopsy for cellular dermatofibroma of the right shoulder 7 years ago. Chest computed tomographic scanning shows multiple nodules in both lung fields. Segmental and wedge resections were done. Grossly, the masses were hemorrhagic cysts. Microscopically, there were dilated cystic airspaces. The airspaces were lined by respiratory and metaplastic squamous epithelium with underlying layers of fibrohistiocytic spindle cells with storiform and fascicular pattern. The tumor cells stained for CD68 and CD10. The lung mass shows same histologic features with skin lesion.
authors.affiliation: Department of Pathology, Daegu Fatima Hospital, Daegu 701-600, Korea. gmjap@fatima.or.kr
authors.forename: MiJin
authors.initials: M
authors.lastname: Gu
authors.forename: KyungRak
authors.initials: K
authors.lastname: Sohn
authors.forename: DongJa
authors.initials: D
authors.lastname: Kim
authors.forename: ByungHo
authors.initials: B
authors.lastname: Kim
mesh_terms: D000328:Adult; D015703:Antigens, CD / Q000378:metabolism; D015214:Antigens, Differentiation, Myelomonocytic / Q000378:metabolism; D005260:Female; D018219:Histiocytoma, Benign Fibrous / Q000378:metabolism / Q000473:pathology / Q000556:secondary*; D006801:Humans; D008175:Lung Neoplasms / Q000378:metabolism / Q000473:pathology / Q000556:secondary*; D015260:Neprilysin / Q000378:metabolism; D012878:Skin Neoplasms / Q000378:metabolism / Q000473:pathology*; D000097382:CD68 Molecule
chemical_list: D015703:Antigens, CD; D015214:Antigens, Differentiation, Myelomonocytic; D015260:Neprilysin; C067980:CD68 antigen, human; D000097382:CD68 Molecule