Abdominal wall endometriosis (AWE) is a rare entity presenting as a painful lump with a cyclical pattern, associated with previous caesarean section (CS). AWE is typically located at the site of the CS scar. The diagnosis is challenging in the rare instance when AWE presents at a location distant to the CS scar. A 37-year-old patient presented to a general surgeon with a 2-year history of left-sided, periumbilical pain exacerbated during her menstrual periods. A 3 cm firm and tender nodule was noted clinically. Intraoperatively, the nodule involved the rectus muscle and infiltrated the peritoneum. Histology confirmed endometriosis, and the patient recovered uneventfully. The rarity of this clinical entity and the fact that AWE mostly presents to non-gynaecologists make the diagnosis challenging prolonging its physical and psychological morbidity. Thorough history-taking with emphasis on the pattern of pain and a previous history of CS should raise suspicion of AWE.
- obstetrics, gynaecology and fertility
- general surgery
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Contributors All authors were directly involved in the care of this patient. NG and CK were responsible for drafting the manuscript. CJ-A and MN revised and finalised the manuscript.
Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Competing interests None declared.
Provenance and peer review Not commissioned; externally peer reviewed.
Patient consent for publication Obtained.
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