Squamous Cell Carcinoma Arising within Seborrheic Keratosis.

[Squamous cell carcinoma on seborrheic keratosis].

To the Editor: Seborrheic keratosis is one of the most common benign epidermal tumors in dermatologic clinical practice. Although the association between seborrheic keratosis and other skin tumors was first reported in 1932, its malignant transformation is very rare, with less than 20 published cases. We present the case of a patient with seborrheic keratosis that underwent transformation into ...

Squamous cell carcinoma arising from a Sebaceous cyst

      Abstract: development of squamous cell carcinoma from sebaceous cyst is uncommon.in this report , we report a77- old female patient who has had a sebaceous cyst for 20 years. The cyst started to grow during the last year. The patient underwent an operation for excision biopsy and The diagnosis was squamous cell carcinoma.

Melanoma in-situ arising in seborrheic keratosis: a case report

BACKGROUND Seborrheic keratosis is a very common benign skin tumor in man. Melanoma is rare but is the most dreaded of all malignant skin tumors. A melanoma arising in a seborrheic keratosis is distinctly rare. We are reporting such a case occurring in an 86-year-old man. CASE PRESENTATION An-86-year-old male with a history of multiple actinic keratoses and seborrheic keratoses of the head an...

Actinic Keratosis and Squamous Cell Carcinoma

Squamous Cell Carcinoma Arising Within Gingival Lichen Planus

Oral squamous cell carcinoma (SCC) is a malignant tumour of the epithelial cells of the oral mucosa and accounts for more than 90% of all head and neck cancers (Silverman, 2001). SCC’s may arise in different areas of the oral cavity, the most common sites being the posterior ventero-lateral border of the tongue and floor of mouth (McGaw and Pan, 1996). Gingival SCC’s account for approximately 9...