Ectopic deciduosis with gigantic nodules: an uncommon case during pregnancy

Abstract

Ectopic deciduosis is a common phenomenon during pregnancy, most often benign and corresponds to the presence of decidual tissue outside the endometrium. However, ectopic deciduous of the peritoneum and omentum remains a rare entity. In the literature, this is a physiological phenomenon that can complicate a mass syndrome or haemorrhage. We report here a case of ectopic peritoneal and omental deciduosis, discovered incidentally during caesarian section. This is a very rare case because we have found gigantic nodules and the largest measuring 75 mm in diameter. Pathological examination remains essential in order to differentiate it from peritoneal carcinomatosis or from an infectious disease such as tuberculosis. The prognosis is excellent. Surgical excisions of nodules with biopsies were performed. The patient was discharged from the hospital on the 5th postoperative day. Few months later, a laparoscopy was performed and showed the complete regression of the lesions.

Keywords

• ectopic deciduosis
• gigantic nodules
• pregnancy