title: Malignant Natural-Killer cell neoplasm presenting as a mucous cyst on the distal interphalangeal joint of the finger.
abstract: This case report describes a very rare and highly malignant type of lymphoma, which presents as a mucous cyst on the finger. The cyst was excised and the specimen pathohistologically analyzed. The analysis revealed the presence of a Natural-Killer cell neoplasm. This case illustrates and stresses the importance of a pathohistological examination when doubts arise about the initial diagnosis of a benign tumorous lesion.
authors.affiliation: Department of Plastic and Hand Surgery, Friedrich-Alexander University of Erlangen, Krankenhausstrasse 12, 91054, Erlangen, Germany. Frank.Unglaub@uk-erlangen.de
authors.forename: Frank
authors.initials: F
authors.lastname: Unglaub
authors.forename: Bernd
authors.initials: B
authors.lastname: Loos
authors.forename: Maya B
authors.initials: MB
authors.lastname: Wolf
authors.forename: Adrian
authors.initials: A
authors.lastname: Dragu
authors.forename: Kerstin
authors.initials: K
authors.lastname: Amann
authors.forename: Raymund E
authors.initials: RE
authors.lastname: Horch
mesh_terms: D000368:Aged; D003560:Cysts / Q000175:diagnosis; D005385:Fingers; D006801:Humans; D007694:Killer Cells, Natural; D008223:Lymphoma / Q000175:diagnosis / Q000473:pathology*; D008297:Male; D012878:Skin Neoplasms / Q000175:diagnosis / Q000473:pathology*