Table 1.

Patients characteristics, diagnostic methods and treatment performed

Patients	Age at Diagnosis	Personal History	Time between Surgery and Diagnosis	Symptoms	Image Diagnosis/FNA	Location	Involving Neighboring Structures	Node Size	Other Location Endometriosis
1	29	Laparoscopic ovarian cystectomy for endometriosis (1999). Ewing sarcoma in right psoas (2000) treated with chemotherapy and radiotherapy. Wedge resection of right ovary for endometriotic cyst (Same time surgical psoas)	10	Dark skin lesion that festers in umbilical region in previous scar area of 2x1cm. Dysmenorrhea.	MR/No	Infraumbilical	No involvement. Fascia was resected for cancer.	2 cm	Yes. Ovary.
		G0P0
2	38	Without positive findings	3	Painful node in episiotomy. The pain is accompanied by inflammation and always coincides with menstruation. Pain increases as time passes.	Ultrasound/No	Deeply in episiotomy scar. It extends into the ischiorectal fossa.	No	3 cm	No
		G1V1 Forceps
3	32	Without positive findings	2	Episiotomy painful node which size increases with menstruation.	No/Yes: endometriosis	Episiotomy.	No	1.5 cm	No
		G1 V1
4	28	Endometriosis diagnosed in 2007.	4	Intense dysmenorrhea. Abdominal wall nodule in right rectus.	Ultrasound/Yes: endometriosis	Right rectus of the abdomen muscle.	Yes. Nodule in right hemiabdomen.	1 cm	Yes. Ovary.
		G1 C1: active genital Herpes virus lesions.
5	36	Without positive findings	3	Painful node.	Ultrasound/No	Right angle cesarean scar.	No	1.5 cm	No
		G2 A1 C1: No progress in labor
6	32	Without positive findings	3	Painful tumor of 4–5 cm in the upper left corner of cesarean scar.	No/Yes: endometriosis	Left angle of cesarean scar	No	5 cm	No
		G2 C1 V1 (2008): suspected fetal distress
7	23	Without positive findings	2	Tender lump in cesarean section (right paramedian region) that increases in size with menstruation.	Ultrasound/No	Rigth angle of cesarean scar	Fascia and muscle involvement.	1 cm	No
		G1 C1: breech presentation.
8	39	Resection of endometriotic node in cesarean section in 2005. Recurrence in 2010.	2	Tender lump in the upper left corner of cesarean section, which increased in size.	Ultrasound/Yes: no titratable.	Left angle of cesarean scar.	Fascia involvement.	1.5 cm	No
		G1 C1: breech presentation
9	35	Without positive findings	5	Nodule in left corner of cesarean scar which hurts and comes bigger with menstruation	Ultrasound/Yes: endometriosis	Left angle of cesarean scar.	No	3 cm	No
		G1C1 cephalic-breech twin
10	45	Without positive findings	15	Umbilical tumor that increases with Valsalva maneuvers.	No/No	Umbilicus. Medium laparatomy scar.	Hernia sac	2 cm	No
		G2 A1 C1 breech
11	37	Hemithyroidectomy for multinodular goiter. Hypothyroidism. Appendectomy	5	Dysmenorrhea. Hypermenorrhoea.	No/No	Abdominal oblique muscle.	Yes	2 cm	No
		G4 A2 V1 C1:suspected fetal distress
12	33	Tuberculosis in 1994. Anxious depressive syndrome. Migraines.	1	Tumor that appeared after an effort in hypogastrium, which is propelled by coughing and reduced manually. About infraumbilical laparotomy scar. Approx 4 cm	No/No	Down the umbilicus in infraumbilical laparotomy scar.	Hernia sac	3 cm	No
		G2 C2: breech presentation and uterine septum/anterior cesarean section and transverse situation in 2001.
13	27	Without positive findings	1.5	Tumor that increases in size in left iliac fosse after cesarean section.	CT/Yes. Carcinoma. Intraoperative biopsy: endometriosis. Definitive result: endometriosis.	Left iliac fosse, related to cesarean section scar.	Resection is performed removing surrounding tissue until peritoneum.	3 cm	No
		G1C1: breech presentation
14	29	Without positive findings	5	Nodule in right angle cesarean scar that hurts and comes bigger with menstruation	No/Yes: endometriosis	Right angle of cesarean scar.	No	3 cm	No
		G1 C1: No progress in labor
15	30	Appendectomy	4	Tender lump in the upper left corner of cesarean scar	No/Yes: endometriosis	Left angle of cesarean scar.	No	2 cm	No
		G1 C1: transverse situation.
16	36	Without positive findings	5	Bluish nodule in left corner of cesarean scar	No/Yes: endometriosis	Left angle of cesarean scar.	No	1 cm	No
		G2 V1 C1: No progress in labor
17	26	Without positive findings	3	Node in left iliac fosse that increases in size with menstruation.	No/No	Left iliac fosse, related to cesarean section scar.	No	4 cm	No
		G2 A1 C1: breech presentation