Macroscopic deciduosis in pregnancy is finally a common entity

Area of Science:

• Obstetrics and Gynecology
• Reproductive Medicine
• Pathology

Background:

• Deciduosis is a pregnancy-related condition involving ectopic endometrial tissue.
• Its prevalence and clinical associations, particularly during Cesarean sections, require further investigation.

Purpose of the Study:

• To determine the prevalence of macroscopic deciduosis incidentally found during Cesarean sections.
• To investigate the association between deciduosis and obstetrical complications or adverse effects.

Main Methods:

• A unicenter prospective study conducted from August 2011 to February 2014.
• 307 consecutive Cesarean sections were analyzed, with 31 cases confirmed to have macroscopic deciduosis via biopsy.
• Deciduosis was identified in the ovary, uterine serosa, and fallopian tube serosa.

Main Results:

• The prevalence of macroscopic deciduosis was found to be 10% among Cesarean sections.
• Patients with deciduosis had a significantly higher Body Mass Index (BMI) compared to those without (28.4 ± 5.3 vs 25.7 ± 5.8 kg/m², p<0.05).
• Abdominal pain was more frequently reported in the deciduosis group (10.1% vs. unspecified, OR 5.78, p<0.001).

Conclusions:

• Macroscopic deciduosis is a benign finding during pregnancy, present in approximately 10% of Cesarean sections.
• The condition is not associated with adverse obstetrical complications.
• Deciduosis is linked to an increased incidence of abdominal pain during pregnancy.