case_images: PMC11187300_01
case_images: During the patient's first visit, we noticed a significant amount of hair loss, while there were no observable changes in the eyebrows and eyelashes.
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case_images: f1
case_images: Dermatological examination showed patchy hair loss on the scalp without eyebrow or eyelash involvement ( Figure 1 ).
case_images: Clinical photographs reveal nail damage, while dermatoscopic examination shows the presence of black dot sign, exclamation mark hairs, and broken hairs at the site of skin lesions.
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case_images: f2
case_images: Nail abnormalities were also observed ( Figure 2 ).
case_images: Partial hair regrowth and the presence of white hairs were observed during the second visit, but there was partial eyebrow loss.
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case_images: f3
case_images: However, the patient experienced eyebrow loss during the treatment period ( Figure 3 ).
case_images: After 11 months of sequential treatment, the patient's hair has almost completely regrown.
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case_images: f4
case_images: The patient is advised to gradually reduce the dosage ( Figure 4 ).During the treatment, regular blood tests and tests assessing liver and kidney function were performed.