Focal epithelial hyperplasia/Heck disease. Acanthotic squamous epithelium with widened, confluent rete ridges, mild koilocytic change, and mitosoid bodies (degenerating nuclei mimicking mitoses). Usually caused by HPV types 13 and 32. - Dr. Lisa Rooper @LisaRooperMD #Focal #epithelial #hyperplasia #Heck #disease #Pathology #Microscopy #Clinical
