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The scalp hair collar and tuft signs: A retrospective multicenter study of 78 patients with a systematic review of the literature - Journal of the American Academy of Dermatology
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Figure 4 from The scalp hair collar and tuft signs: A retrospective multicenter study of 78 patients with a systematic review of the literature | Semantic Scholar
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Aplasia cutis congenita with hair collar sign and dermal melanocytosis - Cho - 2012 - International Journal of Dermatology - Wiley Online Library
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David Harker, MD, FAAD on Twitter: "Aplasia cutis congenita - absence of skin classically on the scalp but can be seen anywhere. Often isolated, but has many associations. If surrounded by a
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A case of membranous aplasia cutis congenita and dermoscopic features Lozano-Masdemont B - Int J Trichol
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