A 23-year-old male presented to our clinic with a 4-month history of painful papules arising within a whitish, alopecic, oval plaque measuring approximately 12 cm in diameter located on the posterior neck. His medical history was unremarkable. Physical examination revealed that the peripheral area of the plaque was inflamed and contained clusters of tufted terminal hairs, whereas the central portion showed cicatricial alopecia with fine, non-adherent dry scales (Fig. 1). Routine laboratory tests were within normal limits. Dermoscopic evaluation demonstrated perifollicular pustules and tufted hairs interspersed with whitish, structureless areas. These findings confirmed the diagnosis of acne keloidalis nuchae. The patient was treated with appropriate systemic and topical antibiotics, followed by monthly intralesional triamcinolone injections and adjunctive cryotherapy. He reported marked clinical improvement after approximately ten weeks of therapy.
Ethical considerationPatient written informed consent was obtained.
FundingThere was no funding or financial support in the creation of this clinical image.
Ethical committeeComité de Investigación de la UDEM.
Registry number: 18092024-CARD-C.
None.


