Dystrophic Calcinosis Cutis: A Rare Complication Arising From Acne Vulgaris

Dystrophic calcinosis cutis is the cutaneous deposition of amorphous calcium due to persistent tissue inflammation. This subtype is frequently associated with connective tissue diseases or can be localized such as seen in long-standing acne vulgaris. We report the case of a 27-year-old, healthy, Filipino male presenting with yellowish plaques on the submandibular and sternal areas. He presents with a history of persistent acne vulgaris on the face and chest. Histopathological findings show calcium deposits as amorphous basophilic material in the dermis. After a thorough literature review, there are only two documented cases of calcinosis cutis arising as a complication from acne vulgaris. It is postulated that chronic inflammation resulted in cutaneous calcium deposition. Emphasis is given on excluding other systemic diseases before establishing its diagnosis. Although there is no consensus on its mainstay treatment, CO2 lasers are good option for calcified lesions on delicate areas of the head-and-neck regions.