title: Fine needle aspiration cytology of cylindroma of scalp: A case report.
abstract: Cylindromas are uncommon benign adnexal tumor. Multiple cylindromas are commonly genetically inherited and also known as "turban tumor." Cytology of dermal cylindroma is rarely discussed in previous literature. We have diagnosed a case of dermal cylindroma of scalp in an elderly female patient by fine needle aspiration cytology of the lesion and further confirmation was done by histopathology. Cytology consists of many clusters of small round to oval basaloid cells surrounded and attached with magenta coloured acellular hyaline material. The cells have very scanty cytoplasm and dark, round to oval hyperchromatic nuclei without any nuclear membrane irregularity. Histopathology revealed nests of tumor cells separated by dense pink, PAS positive basement membrane material with a jigsaw puzzle appearance. Cytology of cylindroma should be differentiated from adenoid cystic carcinoma and other benign adnexal tumor like spiradenoma. We have discussed the case of cylindroma of scalp diagnosed by cytology and confirmed by histopathology. Diagn. Cytopathol. 2016;44:1082-1084. © 2016 Wiley Periodicals, Inc.
authors.affiliation: Demonstrator, Department of Pathology, College of Medicine and Sagore Dutta Hospital, Kolkata, India.
authors.forename: Subrata
authors.initials: S
authors.lastname: Pal
authors.affiliation: Assistant Professor, Department of Pathology, Bankura Sammilani Medical College, Bankura, India.
authors.forename: Kingshuk
authors.initials: K
authors.lastname: Bose
authors.affiliation: Post graduate trainee, Department of Pathology, Kolkata National Medical College, Kolkata, India.
authors.forename: Mrinal
authors.initials: M
authors.lastname: Sikder
authors.affiliation: Professor and Head, Department of Pathology, Institute of Postgraduate Medical Education and Research, Kolkata, India.
authors.forename: Manaj
authors.initials: M
authors.lastname: Chowdhury
mesh_terms: D044963:Biopsy, Fine-Needle; D003528:Carcinoma, Adenoid Cystic / Q000473:pathology*; D005260:Female; D006258:Head and Neck Neoplasms / Q000473:pathology*; D006801:Humans; D008875:Middle Aged; D012535:Scalp / Q000473:pathology*; D012878:Skin Neoplasms / Q000473:pathology*
keywords: cylindroma; fine needle aspiration cytology; scalp