Lymphadenopathy
1. Malignant diseases a. Haematologic (Hodgkin’s disease, non-Hodgkin’s lymphomas, amyloidosis) b. Metastatic (from numerous primary sites) 2. Immunological diseases a. Crohn’s disease b. Ulcerative colitis d. Systemic lupus erythematosus e….
Contrast-Enhanced Bowel Ultrasound
Fig. 1 Submucosal tumor (smt) of gastric antrum. Endosonography (a) and gastric hydrosonography (b) show a small submucosal lesion Fig. 2 Submucosal tumor (smt) of gastric antrum. Endosonography (a) and gastric hydrosonography…
Gastrointestinal Biopsy
Fig. 1 The pseudo-kidney sign. The strong echogenic center (corresponding to the lumen content) is surrounded by an echo-poor rim (thickened bowel wall) in a case of colonic adenocarcinoma Fig. 2 The…
Endometriosis
Fig. 1 Transvaginal sonography showing an ovarian endometrioma (*) along with a sigmoid colon with thickened bowel wall and hyperechoic submucosal layer (#) in a Crohn’s disease patient 2 Etiology and…
Ultrasound of the Gastrointestinal Tract
Fig. 1 Standardized section of the antrum. Antral area is outlined The relationship between the antral area as measured by ultrasound and the amount of fasting gastric content quantitated by aspiration…
Tuberculosis
Fig. 1 Ileocecal tuberculosis. Transverse sonogram of the right lower abdomen shows diffuse thickening of the terminal ileum (TI) and cecum (C) Fig. 2 Ileocecal tuberculosis and associated mesenteric lymphadenitis (reproduced with…
Contrast-Enhanced Bowel Ultrasound
Advantages Disadvantages Increases display dynamic range (increased sensitivity) Susceptible to tissue motion artifacts No multiple angle artifact No direction information No aliasing No velocity information Limited angle dependence Limited temporal…
Fibrosis, Amyloidosis, Vasculitis and other Rare Disorders
Fig. 1 Newborn infant with cystic fibrosis, presenting with intestinal occlusion due to meconium ileus. Small empty colon (C) (a) is associated with distension of the small-bowel (asterisks) with liquid (arrows)…