Sigmoid volvulus

Case contributed by Manar Alaa El Din osman
Diagnosis certain

Presentation

Abdominal pain and constipation.

Patient Data

Age: 80 years
Gender: Male

CT scout and CT images

ct

Markedly dilated sigmoid colon reaching the right hypochondrial region showing coffee bean sign, tapering of its lower end (bird beak sign with rectal contrast) and whirly appearance of its mesentery. No underlying mural thickening noted.

Other findings include bulky left supra renal gland, bilateral renal cortical cysts, bilateral inguinal hernias, right Spigelian hernia, spondylodegenerative changes of the lumbar spine and atheromatous plaques of the aorta and iliac vessels.

pathology

Surgical specimen confirms the diagnosis of sigmoid volvulus.

Case Discussion

  • CT is the imaging modality of choice used to assess patient with abdominal pain

  • CT findings of sigmoid volvulus include; markedly dilated sigmoid colon with coffee bean appearance, smooth tapering of its lower ends (bird peak appearance) and whirl sign of the sigmoid mesentery

  • CT can help in assessment of bowel ischemia associated with obstruction

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