Focal Hypertrichosis during Topical Tacrolimus Therapy for Vitiligo: A Case Report
Introduction: Tacrolimus is widely used in treating vitiligo. Drug-induced hypertrichosis is a well-known side effect of cyclosporine. It is less commonly associated with tacrolimus or with topical calcineurin inhibitors. Four reports of hypertrichosis attributed to topical or systemic tacrolimus ha...
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| Vydáno v: | Case reports in dermatology Ročník 17; číslo 1; s. 106 - 109 |
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Switzerland
S. Karger AG
01.04.2025
Karger Publishers |
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| ISSN: | 1662-6567, 1662-6567 |
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| Abstract | Introduction: Tacrolimus is widely used in treating vitiligo. Drug-induced hypertrichosis is a well-known side effect of cyclosporine. It is less commonly associated with tacrolimus or with topical calcineurin inhibitors. Four reports of hypertrichosis attributed to topical or systemic tacrolimus have been previously reported in the literature. In this report, we describe a case of focal hypertrichosis due to long-term use of topical tacrolimus for vitiligo. Case Presentation: We present a 15-year-old boy with focal hypertrichosis of white hair for 4 months, after treatment with topical tacrolimus 0.1% ointment. He denied ever using other ointment to the area. After he stopped using tacrolimus for half a month, the focal hypertrichosis improved. Conclusion: We propose that the focal hypertrichosis was induced by tacrolimus. The hair growth-stimulating effects of tacrolimus have been established. It is reported that tacrolimus directly stimulates mouse whiskers in vitro and prolongs the anagen phase of hair growth when it is applied topically in mice. We believe that a greater awareness of this rare side effect of tacrolimus is warranted as tacrolimus is widely used in treating vitiligo. |
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| AbstractList | Introduction: Tacrolimus is widely used in treating vitiligo. Drug-induced hypertrichosis is a well-known side effect of cyclosporine. It is less commonly associated with tacrolimus or with topical calcineurin inhibitors. Four reports of hypertrichosis attributed to topical or systemic tacrolimus have been previously reported in the literature. In this report, we describe a case of focal hypertrichosis due to long-term use of topical tacrolimus for vitiligo. Case Presentation: We present a 15-year-old boy with focal hypertrichosis of white hair for 4 months, after treatment with topical tacrolimus 0.1% ointment. He denied ever using other ointment to the area. After he stopped using tacrolimus for half a month, the focal hypertrichosis improved. Conclusion: We propose that the focal hypertrichosis was induced by tacrolimus. The hair growth-stimulating effects of tacrolimus have been established. It is reported that tacrolimus directly stimulates mouse whiskers in vitro and prolongs the anagen phase of hair growth when it is applied topically in mice. We believe that a greater awareness of this rare side effect of tacrolimus is warranted as tacrolimus is widely used in treating vitiligo. Tacrolimus is widely used in treating vitiligo. Drug-induced hypertrichosis is a well-known side effect of cyclosporine. It is less commonly associated with tacrolimus or with topical calcineurin inhibitors. Four reports of hypertrichosis attributed to topical or systemic tacrolimus have been previously reported in the literature. In this report, we describe a case of focal hypertrichosis due to long-term use of topical tacrolimus for vitiligo.IntroductionTacrolimus is widely used in treating vitiligo. Drug-induced hypertrichosis is a well-known side effect of cyclosporine. It is less commonly associated with tacrolimus or with topical calcineurin inhibitors. Four reports of hypertrichosis attributed to topical or systemic tacrolimus have been previously reported in the literature. In this report, we describe a case of focal hypertrichosis due to long-term use of topical tacrolimus for vitiligo.We present a 15-year-old boy with focal hypertrichosis of white hair for 4 months, after treatment with topical tacrolimus 0.1% ointment. He denied ever using other ointment to the area. After he stopped using tacrolimus for half a month, the focal hypertrichosis improved.Case PresentationWe present a 15-year-old boy with focal hypertrichosis of white hair for 4 months, after treatment with topical tacrolimus 0.1% ointment. He denied ever using other ointment to the area. After he stopped using tacrolimus for half a month, the focal hypertrichosis improved.We propose that the focal hypertrichosis was induced by tacrolimus. The hair growth-stimulating effects of tacrolimus have been established. It is reported that tacrolimus directly stimulates mouse whiskers in vitro and prolongs the anagen phase of hair growth when it is applied topically in mice. We believe that a greater awareness of this rare side effect of tacrolimus is warranted as tacrolimus is widely used in treating vitiligo.ConclusionWe propose that the focal hypertrichosis was induced by tacrolimus. The hair growth-stimulating effects of tacrolimus have been established. It is reported that tacrolimus directly stimulates mouse whiskers in vitro and prolongs the anagen phase of hair growth when it is applied topically in mice. We believe that a greater awareness of this rare side effect of tacrolimus is warranted as tacrolimus is widely used in treating vitiligo. Tacrolimus is widely used in treating vitiligo. Drug-induced hypertrichosis is a well-known side effect of cyclosporine. It is less commonly associated with tacrolimus or with topical calcineurin inhibitors. Four reports of hypertrichosis attributed to topical or systemic tacrolimus have been previously reported in the literature. In this report, we describe a case of focal hypertrichosis due to long-term use of topical tacrolimus for vitiligo. We present a 15-year-old boy with focal hypertrichosis of white hair for 4 months, after treatment with topical tacrolimus 0.1% ointment. He denied ever using other ointment to the area. After he stopped using tacrolimus for half a month, the focal hypertrichosis improved. We propose that the focal hypertrichosis was induced by tacrolimus. The hair growth-stimulating effects of tacrolimus have been established. It is reported that tacrolimus directly stimulates mouse whiskers in vitro and prolongs the anagen phase of hair growth when it is applied topically in mice. We believe that a greater awareness of this rare side effect of tacrolimus is warranted as tacrolimus is widely used in treating vitiligo. |
| Author | Yu, Xueping Mao, Lingyu Lin, Yan Liu, Huaxu |
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| Snippet | Introduction: Tacrolimus is widely used in treating vitiligo. Drug-induced hypertrichosis is a well-known side effect of cyclosporine. It is less commonly... Tacrolimus is widely used in treating vitiligo. Drug-induced hypertrichosis is a well-known side effect of cyclosporine. It is less commonly associated with... |
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| Title | Focal Hypertrichosis during Topical Tacrolimus Therapy for Vitiligo: A Case Report |
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