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Updated: Jul 15, 2026

Microsatellite DNA Genotyping and Flow Cytometry Ploidy Analyses of Formalin-fixed Paraffin-embedded Hydatidiform Molar Tissues
Published on: October 20, 2019
Proliferating pilomatricoma: a subset of pilomatricoma
Atsuko Sakai1, Yu Maruyama, Akiteru Hayashi
1Department of Plastic and Reconstructive Surgery, Toho University Ohashi Hospital, Tokyo, Japan. prsnet@med.toho-u.ac.jp
Abstract:
Proliferating pilomatricoma is a histopathological entity that was proposed by Kaddu et al. in 1997. Proliferating pilomatricoma represents a distinctive histopathological entity; it should be differentiated from other benign and malignant neoplasms with features of hair matrix differentiation. Kaddu reported that an incompletely excised proliferating pilomatricoma may have a greater potential for local recurrence, because histopathologically it showed variable nuclear atypia and several mitotic figures. We report two patients with proliferating pilomatricoma and describe their clinical and pathological features.
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