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Pharmacological regimens with multiple medications are being used in fertility treatments. Herein, we report a case of a 40‐year‐old Japanese woman who developed Stevens‐Johnson syndrome (SJS) with a severe ocular complication during fertility treatment. Despite early multimodal interventions, including methylprednisolone pulse therapy and plasma exchange, her ocular complications persisted for more than a year. The four drugs administered in this case (cabergoline, medroxyprogesterone acetate, clomiphene, and intravenous human chorionic gonadotropin) have never been reported to induce SJS. Based on this case, we suggest that obstetricians, gynecologists, and dermatologists should be aware of fertility treatment‐induced severe drug eruptions.

We aimed to elucidate the dermoscopic vasculature of patients with Bowen Disease (BD) that was misdiagnosed as chronic eczema and had branched and/or reticular vessels after topical steroid application. The medical records of 19 patients with BD on the upper trunk were retrospectively reviewed for steroid use history, vascular structure observed in dermoscopy, and corresponding histological findings. Four patients treated with strong topical steroids showed remarkable branched and/or reticular vessels on dermoscopy. Histopathology showed partial epidermal atrophy with irregular thin elongation of the rete ridges, atypical keratinocyte proliferation in the epidermis, and vasodilation in the superficial dermis. We considered that vasodilation and partial epidermal atrophy may be induced by topical steroid application in BD-affected areas. In cases of suspected BD with reddish-brown plaque showing branched and/or reticulated vessels in dermoscopy, confirming a history of topical steroid use is helpful.