A broad spectrum of colonic complications can occur in patients with colon cancer. Clinically, some of these complications can obscure the presence of underlying malignancies in the colon and these complications may require emergency surgical management. The complications of the colon that can be associated with colon cancer include obstruction, perforation, abscess formation, acute appendicitis, ischemic colitis and intussusception. Although the majority of these complications only rarely occur, familiarity with the various manifestations of colon cancer complications will facilitate making an accurate diagnosis and administering prompt management in these situations. The purpose of this pictorial essay is to review the CT appearance of the colonic complications associated with colon cancer.
Abdominal Abscess/complications/radiography ; Adult ; Aged ; Aged, 80 and over ; Appendicitis/complications/radiography ; Colitis, Ischemic/complications/radiography ; Colon/*radiography ; Colonic Diseases/complications/radiography ; Colonic Neoplasms/*complications/*radiography ; Female ; Humans ; Intestinal Diseases/*complications/*radiography ; Intestinal Obstruction/complications/radiography ; Intussusception/complications/radiography ; Male ; Middle Aged ; Tomography, X-Ray Computed/*methods

Henoch-Schonlein purpura (HSP) is a vasculitis involving small vessels of skin, joints, gastrointestinal (GI) tract, and kidneys. The patients typically show palpable purpura with one or more characteristic manifestations including abdominal pain, hematuria or arthritis. HSP shows gastrointestinal symptoms in 50~85% of patients, and in 14~40% of patients GI symptoms precede purpuric rash which makes the diagnosis of HSP difficult. We present a case of Henoch-Schonlein purpura with GI bleeding, septic shock by ileal microperforation, small bowel obstruction as a result of ileal stricture and psoas muscle abscess.
Abdominal Pain ; Anti-Inflammatory Agents/therapeutic use ; Colonoscopy ; Gastrointestinal Diseases/*diagnosis/etiology/pathology ; Gastrointestinal Hemorrhage/diagnosis ; Humans ; Male ; Middle Aged ; Prednisolone/therapeutic use ; Psoas Abscess/etiology/*radiography ; Purpura, Schoenlein-Henoch/*complications/*diagnosis/pathology ; Tomography, X-Ray Computed

With acupuncture treatment becoming an increasingly popular analgesic, there have been increasing reports on its associated complications. Although pneumothorax is the most frequently reported injury caused by acupuncture needles, infectious complications may not be uncommon. Most infectious complications show less serious clinical manifestations than pneumothorax, but retroperitoneal or intraabdominal abscess caused by acupuncture may be much more serious conditions. We experienced a 56-yr-old male diabetic patient presenting with serious retroperitoneal abscess after acupuncture treatments. Emergency operative drainage with adequate antibiotic therapy was performed. Bacterial culture of blood and closed pus specimens recovered Klebsiella pneumoniae. In addition to application of better knowledge on anatomy, appropriate antiseptic practice by practitioners will reduce many serious complications associated with acupuncture.
Abdominal Abscess/radiography ; *Acupuncture ; Acupuncture Therapy/*adverse effects ; Anti-Bacterial Agents/*therapeutic use ; Diabetes Mellitus/complications ; Human ; Klebsiella Infections/*diagnosis/therapy ; Klebsiella pneumoniae/*metabolism ; Male ; Middle Aged ; Sepsis/diagnosis ; Tomography, X-Ray Computed

Aneurysm, Infected ; etiology ; microbiology ; physiopathology ; Aorta, Abdominal ; diagnostic imaging ; physiopathology ; Comorbidity ; Female ; Humans ; Psoas Abscess ; etiology ; microbiology ; physiopathology ; Psoas Muscles ; diagnostic imaging ; physiopathology ; Radiography ; Salmonella ; isolation & purification ; Salmonella Infections ; complications