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This case report describes a 70-year-old male presenting with painless chest and abdominal lumps, ultimately diagnosed as steatocystoma multiplex. Mammography and ultrasound were performed, highlighting the potential for these benign lesions to mimic other fat-containing masses. Management focused on patient education and reassurance, avoiding unnecessary intervention.
Awareness of the imaging characteristics of steatocystoma multiplex can prevent unnecessary investigations and interventions in patients presenting with breast or chest wall lumps.
Steatocystoma multiplex is a benign skin disorder characterized by multiple oil cysts, often inherited in an autosomal dominant pattern. This case report describes a 70-year-old man who presented for mammography due to painless lumps on the chest and abdomen. The patient reported a history of these lesions for approximately 20 years and noted a family history of similar findings. Despite their benign nature, the imaging appearance of steatocystomas can mimic other fat-containing lesions and potentially prompt unnecessary workup. Management is typically conservative, focused on patient education and reassurance, with procedural or medical treatment reserved for complications or cosmetic concerns. This case underscores the importance of recognizing the clinical and imaging features of steatocystoma multiplex to guide appropriate management and avoid overtreatment.