Squamous cell carcinoma in a patient with Netherton's syndrome


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Abstract

A 29-year-old white woman with a history of Netherton's syndrome presented with two squamous cell carcinomas on the right dorsal hand and the left upper arm. She reported a 2-year history of these lesions, which were originally treated as warts. She denied excessive sun exposure, immunosuppressive therapy, or a previous history of skin cancer.Her past medical history included acute renal failure, multiple urinary tract infections, meningitis, and recurrent otitis media as a child. In addition, she had an ovarian abscess at 4 years of age with resulting salpingo-oophorectomy. She also reported a history of severe myopia, glaucoma, and multiple ocular infections with a resulting corneal scar. In addition to atopic dermatitis, she had a 10-year history of psoriasis. Her medications included topical steroids and emollients for atopic dermatitis and psoriasis, in addition to Timolol ophthalmic drops for glaucoma. Her family history was significant for a 22-year-old sister with Netherton's syndrome (Fig. 1). She denied any history of skin cancer in her sister or other members of her family.On physical examination, she had an exfoliative erythroderma, madarosis, and diffuse patchy alopecia. In the bilateral axilla, she had well-defined pink scaly plaques which were confirmed as psoriasis by biopsy. On the right dorsal hand, she had a 1.5 × 1.0 cm pink verrucous plaque (Fig. 2). On the left upper arm, she had a 1.5 × 0.8 cm pink scaly plaque. Biopsies of both sites confirmed squamous cell carcinomas. Both lesions were completely excised with 4 mm margins.

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