Stomach: Mucosal Neoplasias
Fig. 8.1 (a, b) Normal fundic gland mucosa extends in the area of gastric folds and (b) shows fine red dots on WLI (lesser curvature), i.e., starfish-like, regular arrangement of…
Colorectum: Mucosal Neoplasias
Superficial neoplastic lesion Prevalence (%) Cancer risk (%) Recommended resection Polypoid 0-Ip/Isp/Is ~15–20 1–15 Snaring Elevated/flat 0-IIa/b ~5 4–6 EMR Depressed 0-IIc ~0.5 30–75 → En bloc Table 10.1b Prevalence…
Squamous Cell-Lined Esophagus and Hypopharynx: Mucosal Neoplasias
Fig. 6.1 Normal squamous epithelial esophagus. (a) Standard WLI with dendritic submucosal vascular pattern (and very faint IPCLs), (b) squamous epithelial esophagus with regular straight IPCL pattern (loop A JES;…
Endoscopic Detection and Analysis of Mucosal Neoplastic Lesions: Enhanced Imaging and Tumor Morphology
Fig. 4.1 (a) Schematic diagram of red-green-blue (RGB) sequential imaging system. (b) Schematic diagram of CCD-based, RGB simultaneous imaging system. CCD charge-coupled device. Fine-tuning of the system settings is essential…
Duodenum and Small Bowel: Mucosal Neoplasias
Staging of duodenal FAP No (A) Size (mm) (B) Histology (C) Dysplasia (D) Score points Stage Σ score points <10 <5 Tubular Low-grade 1 0 0 10–20 5–10 Tubulovillous…
Chronic Inflammatory Bowel Disease in Remission: Mucosal Neoplasias
Risk factor Absolute risk RRa Ref Disease duration At 10 years: 2–3 % 2.4 [1, 5] At 20 years: 8 % 2.8 At 30 years: 18 % Extent: Ulcerative pancolitis …
Histopathology of Early Mucosal Neoplasias: Morphologic Carcinogenesis in the GI Tract
Category Description Japanese viewpoint Category 1 Negative for neoplasia/dysplasia a Category 2 Indefinite for neoplasia/dysplasia a Category 3 Non-invasive low-grade neoplasia (low-grade adenoma/dysplasia) a Category 4 Non-invasive high-grade neoplasia 4.1…
Columnar Epithelium-Lined (Barrett’s) Esophagus: Mucosal Neoplasias
Intraepithelial neoplasia Intervals for follow-up endoscopy None 2–3 years Low grade 6 months, then every 12 months as long as low-grade dysplasia persists High grade Mucosal irregularity Endoscopic resection Inconspicuous…
High-Resolution Endoscopic Ultrasound: Clinical T-Staging of Mucosal Neoplasms
Fig. 5.1 The layered structure of gastric and colonic wall (Modified from Yamanaka [2]; m mucosa, sm submucosa, pm muscularis propria, ad adventitia, s/ss subserosa/serosa, ep lamina epithelialis, gl glands,…
Principles of Endoscopic Resection: Diagnostic and Curative Resection of Mucosal Neoplasias
Fig. 3.1 Basic resection techniques of mucosal neoplasias by electrosnaring (a) or expanded snaring techniques (b, c, d, endoscopic mucosal resection EMR). Larger lesions (>20 mm) are only resectable in…
