Gigantomastia in a patient with systemic lupus erythematosus successfully treated by reduction mammoplasty

The objective of the study was to describe a Filipino woman with systemic lupus erythematosus (SLE) who developed gigantomastia associated with hyperoestrogenemia and successfully treated by reduction mammoplasty. A 37-year-old Filipino woman with SLE of 5-year duration presented with enlargement of breasts, which became more noticeable and progressive during disease flares requiring increased steroid dose (+ or - 40 mg/day). Following control of the last SLE flare, with prednisone effectively tapered to 15 mg/day, she consented to surgical breast reduction. Preoperative physical examination recorded the right and left breast measurement of 61 cm and 54.5 cm from sternal notch to nipple tip, respectively. serum oestrogen assay was elevated. She successfully underwent reduction mammoplasty with free nipple graft, with an uneventful postoperative course. The breast tissue oestrogen and progesterone receptor assays were strongly positive. In the succeeding months, SLE disease remained stable with prednisone tapered to 10 mg daily. This case illustrates a rare occurrence of gigantomastia associated with hyperoestrogenemia in a patient with SLE, successfully treated with reduction mammoplasty.