clear cell acanthoma
Histologic Features
- A well demarkated lesion with
- Confluent parakeratosis containing neutrophils and plasma
- Marked psoriasiform hyperplasia with thick fused rete ridges
- Keratinocytes with abundant clear cytoplasm
- Neutrophils and nuclear dust in the epidermis
- Hypogranulosis and very thin suprapapillary plates
- Scattered dyskeratotic cells
- Marked edema and hypervascularity of the papillary dermis
- A moderately dense lymphohistiocytic perivascular infiltrate with many plasma cells
Updated Wednesday, July 31, 2013 8:30:48 PM