Nodulocystic basal cell carcinoma arising directly from a seborrheic keratosis: A rare case report

• Main Authors: Kana Shibao (Author), Naoko Okiyama (Author), Ryota Tanaka (Author), Hitoshi Maruyama (Author), Yasuhiro Fujisawa (Author), Manabu Fujimoto (Author)
• Format: Book
• Published: Wolters Kluwer Medknow Publications, 2016-01-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

Seborrheic keratoses (SKs) are common epidermal tumors composed of benign keratinocytes. Malignant skin tumors including basal cell carcinoma (BCC) rarely arise within SKs. We report a rare case of an 82-year-old man with nodulocystic BCC that appeared at the center of a scaly hyperpigmented SK that...