Publication: Circle hairs in a patient with multiple myeloma
Issued Date
2021-01-01
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ISSN
11787015
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2-s2.0-85119916131
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Mahidol University
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SCOPUS
Bibliographic Citation
Clinical, Cosmetic and Investigational Dermatology. Vol.14, (2021), 1767-1772
Suggested Citation
Preeyachat Limtong, Poonkiat Suchonwanit Circle hairs in a patient with multiple myeloma. Clinical, Cosmetic and Investigational Dermatology. Vol.14, (2021), 1767-1772. doi:10.2147/CCID.S343365 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/78558
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Title
Circle hairs in a patient with multiple myeloma
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Abstract
Circle hair is a rare body-hair disorder of unknown etiology, typically character-ized by perfectly or nearly perfectly coiled hair located below the cornified layer of the skin. Its main histopathological features are dilated hair-follicle infundibula and entrapped hair shafts. After its first description in 1963, there have only been a small number of reported cases, and its pathophysiology remains unclear. Herein, we report a case of an 80-year-old woman with skin lesions and abnormal hairs on both legs. We also propose a possible mechanism of her circle hairs: it may have occurred as an effect of her acquired ichthyosis secondary to her underlying multiple myeloma. There is no specific treatment for circle hairs, and reassurance that it is a harmless condition is sufficient. We prescribed a topical humec-tant and keratolytic agent to moisten the skin and lessen the hair entrapment, which resulted in clinical improvement. As the pathogenesis of the disease is unknown, further studies are warranted.