analysis of abdominal x-ray gas
DESCRIPTION
overview of gas evaluation in abdominal X-ray plain films .TRANSCRIPT
Radiological approach to plain X-ray abdomen
ASCITIS
Feeding tube
• Air :1. Free intraperitoneal air.2. Retroperitoneal air.3. Extraluminal gas
collections.4. Air inside liver.5. Air within bowel wall.
Erect film
Supine film ..Riggler sign
Air under diaphragm- Chilaiditti Syn.
Fundic air bubble
Lesser sac abscess –Acute Pancreatitis
Subphrenic Abscess
Subphrenic abscess
Retroperitoneal air
Pneumobilia-Gall Stone Ileus
Pneumobilia
Portal gas
Emphysematous cholecystitis
Emphysematous cholecystitis
Pneumatosis
Small Intestinal obstruction
Large bowel obstruction
Small bowel Large bowel
Haustra Absent Present
Valvulae conniventes Present in jejunum Absent
Number of loops Many Few
Distribution of loops Central Peripheral
Radius of curvature of loop Small Large
Diameter of loop 30–50 mm 50 mm+
Solid faeces Absent May be present
Types of colonic obstruction:(A) Large bowel distension only, owing to a competent ileocaecal valve. Caecum at risk of perforation. (B) Large bowel distension and small bowel
distension—a competent ileocaecal valve leads to caecal distension but also acts as a mechanical obstruction to the small bowel. Caecum at risk of perforation. (C) Incompetent
distension, small and large bowel dilatation.
Where is the cause ?
What is the cause ?
Sigmoid volvulus
Cecal volvulus
Bowel wall thickening
Segmental narrowing .Ischaemic colitis
Milk of Calcium
Porcelain Gall Bladder
Gall stones
Different types of gall stones
Gall Stones and chronic Pancreatitis
Pancreatic calcifications
Splenic artery calcifications
Appendicolith
Abdominal aortic aneurysm
Calcified vas
Prostatic calcifications
Calcified fibrois
Bladder calcifications.
Phlebolith
Mass-mesenteric cyst
Lymphomatous masses