Introduction: Gestational gigantomastia is a rare benign pathology, with a variable incidence of around 1/100,000 pregnancies. Its pathophysiology is poorly understood. It causes local trophic problems and makes pregnancy difficult. The authors report a rare case of bilateral gigantomastia in a normo-evolving pregnancy of 28 weeks' amenorrhea (SA), managed at the Sourô Sanou University Hospital in Bobo-Dioulasso.

The Case: This 37-year-old patient, 5th gesture, 4th pare, with 4 living children, was admitted to the CHUSS of BoboDioulasso for rapid and painful breast enlargement after 28 weeks' amenorrhea. A diagnosis of bilateral gigantomastia in pregnancy was hypothesized. We continued to monitor the pregnancy until 37 weeks' amenorrhea. Management was essentially medical and surgical by Caesarean section. Post-operative management was straightforward.

Conclusion: Bilateral gravidic gigantomastia is a rare pathology. The etiology is unknown. Management is multidisciplinary, and radical treatment is based on bilateral mastectomy.