PMC5803854_01
Case 1: Initial presentation of the patient (a) and appearance after 16 weeks of follow-up (b). Initial photo of case 2 (c) and case 3 (d)
IJT-10-40-g001.jpg
PMC5803854_03_IJT-10-40-g001.jpg
F1
A 46-year-old male presented with an asymptomatic, well-defined alopecic patch on the occipital region of the scalp of 3 days duration [Figure 1d].
(a) Dermoscopy findings at the initial visit of case 1 include yellow dots, black dots, and short vellus hairs. (b) Microscopic examination of the hair shaft of the pulled-out hair in case 1 shows marked distortion of the proximal hair, appearing as a continuous irregularity or an abrupt narrowing of the diameter of hairs and the absence of typical clubbing. (c) Microscopic examination of a hair from case 2 shows abrupt narrowing of the diameter of hairs and clubbing. (d) In patient 3, there is abrupt narrowing of the diameter of hairs but without clubbing
IJT-10-40-g002.jpg
PMC5803854_03_IJT-10-40-g002.jpg
F2
Microscopic examination of the pulled-out hair revealed abrupt narrowing of the diameter of hairs without clubbing [Figure 2d].
PMC5803854_02
Case 1: Initial presentation of the patient (a) and appearance after 16 weeks of follow-up (b). Initial photo of case 2 (c) and case 3 (d)
IJT-10-40-g001.jpg
PMC5803854_03_IJT-10-40-g001.jpg
F1
A 46-year-old male presented with an asymptomatic, well-defined alopecic patch on the occipital region of the scalp of 3 days duration [Figure 1d].
(a) Dermoscopy findings at the initial visit of case 1 include yellow dots, black dots, and short vellus hairs. (b) Microscopic examination of the hair shaft of the pulled-out hair in case 1 shows marked distortion of the proximal hair, appearing as a continuous irregularity or an abrupt narrowing of the diameter of hairs and the absence of typical clubbing. (c) Microscopic examination of a hair from case 2 shows abrupt narrowing of the diameter of hairs and clubbing. (d) In patient 3, there is abrupt narrowing of the diameter of hairs but without clubbing
IJT-10-40-g002.jpg
PMC5803854_03_IJT-10-40-g002.jpg
F2
Microscopic examination of the pulled-out hair revealed abrupt narrowing of the diameter of hairs without clubbing [Figure 2d].
Histopathologic examination of hair from patient 2 shows an increased number of catagen and telogen hairs and scanty peribulbar infiltration of inflammatory cells
IJT-10-40-g003.jpg
PMC5803854_02_IJT-10-40-g003.jpg
F3
On the histopathologic examination, increased numbers of catagen and telogen hairs were seen, but there was no inflammatory cell infiltration around the hair follicles [Figure 3].
PMC5803854_03
Case 1: Initial presentation of the patient (a) and appearance after 16 weeks of follow-up (b). Initial photo of case 2 (c) and case 3 (d)
IJT-10-40-g001.jpg
PMC5803854_03_IJT-10-40-g001.jpg
F1
A 46-year-old male presented with an asymptomatic, well-defined alopecic patch on the occipital region of the scalp of 3 days duration [Figure 1d].
(a) Dermoscopy findings at the initial visit of case 1 include yellow dots, black dots, and short vellus hairs. (b) Microscopic examination of the hair shaft of the pulled-out hair in case 1 shows marked distortion of the proximal hair, appearing as a continuous irregularity or an abrupt narrowing of the diameter of hairs and the absence of typical clubbing. (c) Microscopic examination of a hair from case 2 shows abrupt narrowing of the diameter of hairs and clubbing. (d) In patient 3, there is abrupt narrowing of the diameter of hairs but without clubbing
IJT-10-40-g002.jpg
PMC5803854_03_IJT-10-40-g002.jpg
F2
Microscopic examination of the pulled-out hair revealed abrupt narrowing of the diameter of hairs without clubbing [Figure 2d].