A 63-year-old man had a huge verrucous protruding mass over the suprasternal area. The lesion enlarged rapidly over 3 months, and measured about 10 x 8 cm. The histologic finding of the biopsy specimen showed nests of squamous epithelium with central keratinization, infiltrating the dermis. The neoplasm was treated successfully with surgical excision.
- Giant keratoacanthoma
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