Mucinous Lupus Alopecia with Papulonodular Mucinosis as a Sole Cutaneous Manifestation of Systemic Lupus Erythematosus

This article presents a unique case of a 19-year-old male with mucinous lupus alopecia and papulonodular mucinosis as the sole cutaneous manifestation of systemic lupus erythematosus (SLE). The patient exhibited multiple asymptomatic patches of hair loss and papules over the scalp, arms, and face, alongside systemic symptoms like Raynaud's phenomenon and arthralgias. Histopathological examination revealed prominent mucin deposition without significant inflammation, leading to the diagnosis. Treatment with hydroxychloroquine and prednisolone resulted in partial improvement. This case highlights the rare presentation of mucinosis causing alopecia in SLE, emphasizing the importance of histopathology for diagnosis.