RASA1 mutation in a family with capillary malformation-arteriovenous malformation syndrome: A discussion of the differential diagnosis.

We describe a family who presented with several scattered, vascular, cutaneous lesions and was found to have a novel mutation in RASA1, diagnostic of capillary malformation-arteriovenous malformation syndrome. Our patient was initially given a presumptive clinical diagnosis of hereditary hemorrhagic telangiectasia. Capillary malformation-arteriovenous malformation syndrome shares several features with hereditary hemorrhagic telangiectasia and hereditary benign telangiectasia, but it can be distinguished clinically according to its morphologic appearance and distribution of cutaneous vascular lesions, the presence of internal fast-flow lesions, and genetic analysis.

Basal Cell Carcinoma Arising in a Breast Augmentation Scar.

We report a case of a 46-year-old female who presented with a persistent lesion on the inferior right breast. The lesion was located within the scar from a breast augmentation procedure 12 years ago. The lesion had been treated as several conditions with no improvement.

Radiation-induced lichen sclerosus of the vulva : First report in the medical literature.

A 67-year-old woman presented with a firm plaque in the perineal region, 16 months after diagnosis of a high-grade basaloid squamous cell carcinoma of the vagina and treatment by external beam radiation therapy and vaginal cuff brachytherapy. The differential diagnosis included radiation-induced morphea, radiation dermatitis, or, possibly, radiation-induced lichen sclerosus. Biopsy findings, including special staining, confirmed the diagnosis of radiation-induced lichen sclerosus.