Massive Bilateral Gestational Gigantomastia Mimicking Malignancy: A Case Report of a Rare Breast Disorder

Abstract

Gestational gigantomastia (GG) is a rare benign disorder of the breast usually occurring in the 1st or 2nd trimester of pregnancy of unknown etiology. It causes significant physical and psychological symptoms with occasional complications such as sepsis and  haemorrhage. We present a 20-year-old G2P1 + 0 A1, whose LMP was 18 weeks with complaints of progressive bilateral breast  enlargement associated with breast, neck, and back pain. She developed ulcers on both breasts spontaneously and subsequently had an  episode of massive bleeding from the left breast ulcer necessitating emergency admission and multiple blood transfusions. She had a  reduction mammoplasty of both breasts due to her desire to preserve her breast and lack of funds for postmastectomy reconstruction.  However, she had intrauterine fetal death at 26 weeks due to severe oligohydramnios. GG could mimic malignancy and become  complicated by severe bleeding with possible maternal or fetal mortality. A multidisciplinary approach in the management of the patient  is required to achieve the desired treatment outcome.