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首页> 中文期刊> 《化妆品、皮肤病及应用期刊（英文）》 >Targetoid Polycyclic Concentric Hair Regrowth Pattern Is a Sign of Immunological Recovery in Alopecia Areata

Targetoid Polycyclic Concentric Hair Regrowth Pattern Is a Sign of Immunological Recovery in Alopecia Areata

         
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Background: Alopecia areata is a common autoimmune disease, where there are many topical and systemic therapies, during which hair growth appears in a uniform pattern. In certain cases, hair regrowth takes a polycyclic pattern simulating a target, so called targetoid phenomena. Objective: To screen all cases of treated alopecia areata for hair targetoid regrowth pattern. ?Methods: This is an observational study, was conducted in Dermatology Department of Baghdad Teaching Hospital in Iraq, during the period, August 2017 to October 2017. All cases treated for alopecia areata with IM triamcinolone 20 - 40 mg injection every 2 weeks with topical clobetasone ointment and zinc sulfate 2 mg/kg/day for 2 months, were examined for the targetoid concentric hair regrowth pattern. Result: Among all cases of alopecia areata, seven patients were recorded to have the targetoid concentric hair pattern, which seen 2 - 4 weeks after therapy, their ages ranged from 4 to 25 years old with a mean 14.5, all of them were males. All these patients returned back with hair growth in a form of rings of hair growth alternating with rings of little or no hair growth forming a typical picture of target. Conclusion: Targetoid polycyclic concentric hair regrowth pattern is an important phenomenon seen in patients receiving treatment for alopecia areata, which is a good sign of recovery where its etiopathogenesis could not well be elucidated but alternating immunological reactions could explain this targetoid pattern.

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