Achalasia – closed
Achalasia – Closed bird-beak sign [Courtesy of Dr. N. Jaffer]
Small and Large Bowel
The bowel normally contains variable amounts of air or gas (black). Only the inner aspect of the bowel that contains air can be visualized, while the outer limits of the bowel wall are impossible to see (normally).
The large bowel (outlined in the left image) is located peripherally in the abdomen, resembling a “picture frame”. It has a larger diameter than the small bowel and contains mucosal folds, called haustra, that do not completely cross the width of the bowel. The small bowel (outlined in the right image) is located centrally in the abdomen, has a smaller diameter and has folds, called valvulae conniventes (or plicae circulares), that traverse the entire width of the bowel. [Courtesy of Dr. N. Jaffer]
Normal AXR
Supine (left), upright (middle), left lateral decubitus (LLD = left side down).
The anteroposterior (AP) radiograph is most commonly performed with the patient in the supine position, but the upright view can be useful in searching for free intraperitoneal air and/or intestinal air-fluid levels. (Courtesy of Dr. N. Jaffer)
Liver and Spleen
Abdominal axial CT images showing normal liver and spleen parenchyma. Major blood vessels are labeled. [Courtesy of Dr. N. Jaffer]
Urology
There are no Colour Atlas Images for this section at this time.
Vasculitis
Note purpuric papules. (Courtesy Dr. A. Fam)
Figure – 9
Ring and long digit radiograph in a patient with psoriatic arthritis. There is loss of the tuft to the ring finger (arrow), so called acroosteolysis. The long finger shows soft tissue swelling (asterisk) with severe joint space loss and erosions at the proximal interphalangeal (PIP) joint. The bone density is increased involving the proximal and middle phalanx to the long finger (ivory phalanx) related to periostitis, a characteristic feature of psoriatic arthritis. (Courtesy of Dr. A. Donovan)
Figure – 8
Right foot radiograph in a patient with psoriatic arthritis. There is pencil-in-cup deformity involving the proximal interphalangeal (PIP) joint to the third toe (arrow). (Courtesy of Dr. A. Donovan)
Figure – 7
Left long finger radiograph in a patient with psoriatic arthritis and dactylitis. Note soft tissue swelling at the proximal interphalangeal (PIP) joint. Arrows show proliferative new bone formation. There is moderate joint space loss at the PIP joint. (Courtesy of Dr. A. Donovan)
Figure – 6
Left hand radiograph in a patient with rheumatoid arthritis shows extensive erosions at the distal radius, ulna, and carpus. Erosive changes are also seen at metacarpophalangeal (MCP) and proximal interphalangeal (PIP) joints. (Courtesy of Dr. A. Donovan)
