Role of Endoscopic Ultrasound in Diagnosis of Submucosal Lesions of Gastrointestinal Tract

Author:

Fathy Youssry1,Sadek Ahmed2,Wafy Wafaa3,Elansary Mahmoud2,Ragab Khaled2ORCID,Ali Ahmed1ORCID,Kamal Elwy1,Gawad Amira Mohamed Abdel4,Ahmed Hend M.4,Shahba Mohamed A.4,Youness Eman R.4

Affiliation:

1. 1Department of Internal Medicine, Faculty of Medicine, Minia University, Egypt.

2. 2Department of Hepatology and Gastroenterology, Theodor Bilharz Research Institute, Imbaba, Giza, Egypt.

3. 3Public Health Department, Theodor Bilharz Research Institute, Imbaba, Giza, Egypt.

4. 4Department of Medical Biochemistry, Medical Research and Clinical Studies Institute, National Research Centre Cairo, Egypt.

Abstract

The study aimed to understand the magnitude of submucosal lesions as part of the referral to the endoscopic ultrasound (EUS) unit in one year and know the percent of the different types and sites of submucosal lesions of GIT in Theodore Bilharz Research Institute as tertiary referral center draining Egyptian community. Within one year, all patients referred to the EUS unit at Theodore Bilharz Research Institute (TBRI) for assessment to assess the percent of submucosal lesions cases as part of the total referral and know the different types seen and their common sites as compared to the international literature. Patients diagnosed to have submucosal lesion will be subjected to; full clinical history, thorough physical examination, laboratory investigations, BUS for more characterization (site, size, location, echo pattern, etc.) and BUS-guided fine-needle aspiration (FNA) for histopathological examination. The work comprised 36 patients; 16 females and 20 males. Their ages ranged from 21 to 75 years. All patients had preliminary upper endoscopy or colonoscopy. According to the indication of upper preliminary endoscopy or colonoscopy, 12 (33.3%) were complaining of melena, 5 (13.8%) hematemesis, 1 (2.7%) bleeding per rectum, 7 (19.4%) upper abdominal pain, 2 (5.5%) dysphagia, finally, 8 (22.2%) vomiting. According to the site of the submucosal lesion, 24 (66.6%) were gastric, 6 (16.6%) esophageal, 4 (11.1%) duodenal, 1 gastro-esophageal (2.8%), and 1 (2.8%) rectal. 34 cases (94%) were covered by normal overlying mucosa while 2 cases (6%) had superficial ulcerations. It was concluded that EUS criteria, can be used without FNA and histopathologic examination to reduce the cost of differentiation between malignant and benign lesions. All homogenous lesions were benign. Lesion size of 4.5 cm is a cut off; > 4.5 cm were malignant whereas < 4.5 cm were benign. All submucosal lesions without areas of breakdown were benign. Those infiltrating all layers are malignant. EUS guided fine needle aspiration (FNA) and histopathological examination should be done for some submucosal masses to put a definite diagnosis. EUS with colored Doppler is necessary in differentiating cystic from vascular lesions.

Publisher

Oriental Scientific Publishing Company

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