solar lentigo (lentigo senilis)
Histologic Features
- Club-shaped elongation of the rete ridges and epithelial buds
- Marked hyperpigmentation of the basal layer
- Minimal melanocytic hyperplasia
- A superficial perivascular lymphohistiocytic infiltrate with a few melanophages
- Solar elastosis of the upper dermis
- Fusion of the rete and epitbelial cords eventuating into the adenoid type of seborrheic keratosis at the periphery
Updated Wednesday, July 31, 2013 8:30:48 PM