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  Indian J Med Microbiol
 

Figure 1: (a) Trichoscopic field is filled with exclamation mark hair (black arrows). It signifies disease activity in alopecia areata. (b) Pohl–Pinkus constriction is commonly seen in alopecia areata and anagen effluvium. (c) Short regrowing hair (red arrow) is upright, has a pointed tip, and is uniformly pigmented. (d) “i hair” is seen in tinea capitis, trichotillomania. It is a short broken hair which resembles the letter “i” as it has an accentuated distal tip with a hypopigmented shaft beneath the dark tip

Figure 1: (a) Trichoscopic field is filled with exclamation mark hair (black arrows). It signifies disease activity in alopecia areata. (b) Pohl–Pinkus constriction is commonly seen in alopecia areata and anagen effluvium. (c) Short regrowing hair (red arrow) is upright, has a pointed tip, and is uniformly pigmented. (d) “i hair” is seen in tinea capitis, trichotillomania. It is a short broken hair which resembles the letter “i” as it has an accentuated distal tip with a hypopigmented shaft beneath the dark tip