Pigmented onychomatricoma (OM) is a very rare benign fibroepithelial tumor of the nail matrix. We report the case of a 23-year-old Lebanese man with 15-year history of nail plate dystrophy with longitudinal ridging, yellowish discoloration, excessive transverse curvature and late-onset melanonychia along the medial third of the right thumb nail. Excisional biopsy was performed and confirmed OM. We outline the clinical history, radiological and histopathological findings as well as the surgical and reconstructive technique of this unusual case of OM. The age group, history of crush injury, and pigmentation of the nail plate make of this rare form of ungual tumor an interesting case report.
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http://dx.doi.org/10.1016/j.hansur.2019.09.002 | DOI Listing |
J Cutan Pathol
July 2024
Department of Dermatology, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Skin Appendage Disord
October 2023
Department of Dermatology, Atal Bihari Vajpayee Institute of Medical Sciences/Indraprastha University/Ram Manohar Lohia Hospital, Delhi, India.
Ann Dermatol
December 2022
Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea.
J Dermatol
October 2022
Department of Dermatology, Chiba University Graduate School of Medicine, Chiba, Japan.
Acta Biomed
April 2021
Department of Dermatology, Faculty of Medicine, University of Chile, Santiago.
Introduction: Onychomatricoma is a rare subungual tumor composed of stroma and nail matrix-like epithelium. Only seven cases of the pigmented variant have been reported in the literature.
Case Report: We present a 62-year-old male patient with a 2-years history of a single fingernail thickening, deformation, and hyperpigmentation.
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