Abdominal wall endometriosis (AWE) is one of the rarest forms of endometriosis. Little is known about differences between umbilical AWE (U-AWE) and non-umbilical AWE (non-U-AWE) patients. This retrospective cohort study included patients treated for AWE at tertiary endometriosis centre between 2012 and 2020. Patients were divided into two groups - umbilical AWE and non-umbilical AWE.We identified 14 U-AWE and 45 non-U-AWE patients who mostly had lesions in caesarean section scar (38, 64.4%), rarely at other locations (7, 11.9%). Infertility rates for U-AWE patients and non-U-AWE patients were 57.1% and 17.8%, respectively. Concurrent or previous peritoneal endometriosis was noted in 85.7% of U-AWE and 24.4% of non-U- AWE patients. In addition, U-AWE patients and non-UAWE patients significantly differed in following: parity, number of previous caesarean sections, lesion size, prevalence of concurrent or previous deep infiltrating endometriosis, bleeding from abdominal wall, cyclic pain, continuous pain.Infertility and pelvic endometriosis were more prevalent in U-AWE patients. Our data suggests that U-AWE may be a specific marker for a patient highly prone to pelvic endometriosis and subsequent infertility. Findings suggests that clinician should consider comprehensive evaluation of U-AWE patients.

UNASSIGNED: This retrospective study aimed to evaluate the safety and feasibility of ultrasound-guided microwave ablation in the treatment of abdominal wall endometriosis (AWE).
UNASSIGNED: AWE is a rare form of endometriosis that often results in cyclic abdominal pain. The current treatment algorithm for AWE is not well established. Microwave ablation technology is a promising new thermal ablation technique for treating AWE.
UNASSIGNED: This was a retrospective study of nine women with pathologically proven endometriosis of the abdominal wall. All patients were treated with ultrasound-guided microwave ablation. Grey-scale and color Doppler flow ultrasonography, contrast-enhanced ultrasonography, and MRI were used to observe the lesions before and after treatment. The complications, pain relief, AWE lesion volume, and volume reduction rate were recorded 12 months after treatment to evaluate the treatment efficacy. Complications were classified according to the Common Terminology Criteria for Adverse Events and the Society of Interventional Radiology classification system.
UNASSIGNED: Contrast-enhanced ultrasound showed that all lesions underwent successful treatment with microwave ablation. The average initial nodule volume was 7.11 ± 5.75 cm3, which decreased significantly to 1.85 ± 1.02 cm3 at the 12-month follow-up with a mean volume reduction rate of 68.77 ± 12.50%. Periodic abdominal incision pain disappeared at 1 month after treatment in all nine patients. The adverse events and complications were Common Terminology Criteria for Adverse Events grade 1 or Society of Interventional Radiology classification grade A.
UNASSIGNED: Ultrasound-guided microwave ablation is a safe and effective technique for the treatment of AWE, and further study is warranted.

OBJECTIVE: Abdominal and perineal scar endometriosis usually develop in association with a prior surgical scar. The purpose of the study was to detect and review patients\' characteristics of these women over a long period.
METHODS: We retrospectively review the clinical records of 860 women with endometriosis between 1989 and 2019. Data were collected and analyzed from medical and pathological reports of 40 patients with abdominal and perineal scar endometriosis.
RESULTS: 26 patients (3,0 %) were detected in the abdominal wall endometriosis group (AWE) (mean age 36,5 ± 3,4 years) and 14(1,6 %) cases in the perineal endometriosis (PE) group (32,5 ± 2,4 years), respectively. We observed that 92,3 % of women with AWE had undergone at least 1 cesarean section. Moreover, the majority of patients presented with abdominal pain (77, 0 %) and sensation of a mass (96,2 %). 15,4 % of cases had concurrent pelvic endometriosis and the recurrent rate of the disease was 15,4 %. All cases with perineal scar endometriosis were multiparous and delivered vaginally with episiotomy. 92,8 % of patients presented with cyclical pain and swelling. 3 cases suffered from perineal endometriosis combined with pelvic endometriosis. There was a recurrence of perineal endometriosis in 2 women (14,2 %). Surgical excision was the standard treatment of this condition and tissue biopsy confirmed the diagnosis.
CONCLUSIONS: Abdominal wall and perineal scar endometriosis are rare, multifactorial entities which are associated mainly with cesarean section and vaginal episiotomy. Clinicians should be aware of these conditions among all women of reproductive age presenting with cyclic or non-cyclic pain and swelling at the incision sites.

OBJECTIVE: To evaluate the safety and efficacy of ultrasound-guided high-intensity focused ultrasound (USgHIFU) for treating abdominal wall endometrioses (AWE).
METHODS: A retrospective study.
METHODS: Department of Obstetrics and Gynaecology in China.
METHODS: Patients with abdominal wall endometriosis.
METHODS: From August 2010 to April 2014, 32 patients with AWE were treated with USgHIFU in our hospital. USgHIFU treatment was performed with the Model JC-200 High Intensity Focused Ultrasound Tumor Therapeutic System. The symptom relief and the adverse effects were evaluated after USgHIFU ablation.
METHODS: USgHIFU as a new treatment option for patients with AWE.
RESULTS: Contrast-enhanced ultrasound showed that all lesions were successfully ablated with USgHIFU. The follow-up results showed that the average volume of AWE lesions at 6 months after USgHIFU was significantly smaller than that before treatment (2.80 ± 0.12 versus 1.33 ± 0.31 cm3 ). The pain scores at 6 months after treatment were significantly lower than those before treatment (6.80 ± 2.64 versus 1.80 ± 0.3). The non-perfused volume (indicative of successful ablation) was measured in all patients immediately after treatment, ranging from 0.9 to 2.1 cm3 (median: 1.6 cm3 ), and the fractional ablation ranged from 87% to 100% (median: 94%). Local oedema was observed in these patients, lasting for 1-3 days only. No severe complications occurred during the follow-up period.
CONCLUSIONS: Based on our study, USgHIFU ablation is a safe and effective method for treating AWE.
CONCLUSIONS: As a non-invasive treatment technique, HIFU could be used to treat abdominal wall endometriosis.