Morphoeic basal cell carcinoma – an unusual tumor variant at an unusual site

Abstract

Basal cell carcinomas (BCC) are malignant neoplasm arising from the basal layer of epidermis, seen almost exclusively on hair-bearing areas of skin. There are many clinical and histopathological variants in BCC. The tumor commonly seen at the site of excessive sun exposure. It is a locally invasive tumor with rare metastasis. The most common site for the development of morphoeic BCC is over the face. Clinically, morphoeic BCC presents as morphea such as sclerotic plaque and histopathologically as densely hyalinized stroma with angulated strands of neoplastic basaloid cells. Ulceration of the lesion is uncommon in this type. We report a case of morphoeic BCC, an unusual tumor variant occurring over the back.

Keywords

• basal cell carcinoma
• mixed type
• morphoeic basal cell carcinomas