Germinotropic Onychocytic Matricoma: A New Histopathologic Subtype of Onychocytic Matricoma in the Light of the Microanatomy of the Normal Nail Unit, With Special Reference to Nail Mesenchyme.
- Christophe Perrin
Am J Dermatopathol 2017 Feb 2. Epub 2017 Feb 2.
*The Laboratoire Central d'Anatomie Pathologique, Hôpital L. Pasteur, University of Nice, Nice, France; and†Nail's Dermatology Consultations, Cannes, France.
Onychocytic matricoma (OCM) is a benign tumor of adnexal keratinocytes in which there is complete cytodifferentiation toward the germinative cells of the nail matrix, the keratogenous zone cells, and cells of the nail plate. Several microscopic variants of OCM were initially recognized; acanthotic type, acanthotic and papillomatous type, keratogenous type, and melanocytic as slight proliferation of dendritic melanocytes within the basaloid cells. This study reports an additional histopathologic variant of OCM. Read More