Figure 2
From: Trisomy 18 is a consistent cytogenetic feature in pilomatricoma
(a) All pilomatricomas showed basaloid epithelial cells in a maturational continuum with senescent anucleate ‘shadow cells’ (original magnification × 400). (b) Fluorescent in situ hybridization using a centromeric probe for chromosome 18 showed cells with three signals, indicating a subset of tumor cells with trisomy 18 (original magnification × 1000).
