squamous cell carcinoma, pseudoglandular type
Histologic Features
- Confluent parakeratosis
- Epithelial proliferation as lobules of atypical keratinocytes extending into the dermis
- Pseudotubular formation with 'lumina' lined by acantholytic dyskeratotic keratinocytes
- Extensive acantholysis involving large portions of the squamous lobules
- A chronic inflammatory infiltrate at the base
Updated Wednesday, July 31, 2013 8:30:48 PM