title: Pilomatrixoma masquerading as metastatic adenocarcinoma. A diagnostic pitfall on cytology.
abstract: Pilomatrixoma (Px) is a relatively uncommon slowly growing, benign skin appendageal tumor with a wide morphological spectrum, and can pose diagnostic difficulties especially in cases with unusual clinical presentation. We report a case of young male who presented with a nodule over anterior abdominal wall, fine needle aspiration cytology (FNAC) revealed predominantly small cells in focal acinar pattern suggestive of metastatic carcinoma; however, histopathological diagnosis was Px. The case highlights the diagnostic pitfalls on cytology due to limited morphology.
authors.affiliation: Resident, Department of Pathology, Maulana Azad Medical College and Associated LNJP Hospital , New Delhi, India .
authors.forename: Divya
authors.initials: D
authors.lastname: Sharma
authors.affiliation: Assistant Professor, Department of Pathology, Maulana Azad Medical College and Associated LNJP Hospital , New Delhi, India .
authors.forename: Shipra
authors.initials: S
authors.lastname: Agarwal
authors.affiliation: Director Professor, Department of Pathology, Maulana Azad Medical College and Associated LNJP Hospital , New Delhi, India .
authors.forename: L Shyama
authors.initials: LS
authors.lastname: Jain
authors.affiliation: Director Professor, Department of Pathology, Maulana Azad Medical College and Associated LNJP Hospital , New Delhi, India .
authors.forename: Vinay
authors.initials: V
authors.lastname: Kamal
keywords: Adnexal tumor; Fine needle aspiration cytology; Pilomatrixoma