Juxtaclavicular Beaded Lines
A 26-year-old male presented to Primary Care with an asymptomatic papular rash in the supraclavicular area. The patient was initially treated with a topical corticosteroid, followed by a topical antifungal, and had no response to either. The papular rash was later evaluated by Dermatology and diagnosed as juxtaclavicular beaded lines (JCBL), a rare, benign sebaceous gland hyperplasia. The condition is more predominant among African Americans, and is associated with the onset of puberty, and long-term corticosteroid use. The papules of JCBL are typically 1–2 mm, flesh-colored or yellow in color, and arranged in a line adjacent to the clavicles. They are sometimes pierced by a fine hair. Due to their benign nature, JCBL papules do not require treatment. If they are cosmetically bothersome, topical retinoid cream, electrodesiccation, and CO2 lasers can reduce their appearance; however, treatment cannot guard against recurrence.
KeywordsJuxtaclavicular beaded lines Papule Sebaceous gland Hyperplasia Hyperkeratosis Vellus hair Androgen
Open Access This chapter is distributed under the terms of the Creative Commons Attribution Noncommercial License, which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.