Necrobiosis Lipoidica Mimicking Cutaneous Sarcoidosis Finally Treated With an Intralesional Injection of Corticosteroid: A Case Report.

BACKGROUND

Necrobiosis lipoidica (NL) and sarcoidosis are granulomatous disorders with an unknown pathogenesis. They may coexist in the same patient, which suggests a possible overlap between these diseases among shared granulomatous inflammatory pathways. Case Presentation: This study presents the case of a non-diabetic 52-year-old woman who presented with red-yellowish border plaques on the face and upper extremities previously diagnosed as sarcoidosis. After 13 years of inappropriate treatment, histopathological findings consistent with the clinical and para-clinical examination suggested the diagnosis of NL. After treatment with an intralesional injection of steroids, significant improvement was observed, and no recurrent lesions were found. CONCLUSION: Necrobiosis lipoidica may mimic cutaneous sarcoidosis. Prompt recognition and treatment of NL can be helpful for managing the disease. J Drugs Dermatol. 2020;19(1):92-94. doi:10.36849/JDD.2020.4675