LAUSR

Sir, A 54-year-old Chinese woman presented to our department with multiple itchy erythematous to brown rounded sessile nodules and irregular plaques on the perineum. No abnormal symptoms were described by the patient, except pruritus. The lesions started 7 years back and gradually increased in number and size. There were more than 20 lesions with the long axis of individual lesions varying between 5 to 50 mm. The sessile nodules were rounded, rufous or brownish red, and sharply circumscribed with irregular shape, sometimes with a peripheral collarette scaling or slightly moist surface [Figure 1]. Moreover, red pinpoint dots on a whitish background were observed under dermoscopy [Figure 2]. Clinical examination did not reveal any systemic abnormality. There was no history of trauma or insect bite. Differential diagnoses included seborrheic keratosis, amelanotic melanoma, squamous cell carcinoma, Bowen's disease, eccrine poroma, guttate psoriasis, and clear cell hidradenoma. An incisional skin biopsy from a plaque on her left inguinal region was performed.