
Endometriosis is defined as the presence and growth of ectopic endometrial tissue outside the uterus, with caesarean scar endometriosis being a rare entity reported in 0.03% to 0.5% of women following caesarean section. The diagnosis of endometriosis is usually established by a biopsy. However, we present a case of abdominal wall scar endometriosis in a woman who presented as a swelling on abdominal wall, diagnosed by FNAC and confirmed by cell block preparation with PR and CD 10 positivity on IHC.