Roentgenologic Aspects of Reversible Vascular Occlusion of the Colon and Its Relationship to Ulcerative Colitis

Ischemic disease of the small bowel and colon associated with oral contraceptives

“…As e m p h a s i z e d by Schwartz et al [27] the subseq u e n t disappearance o f the changes noted in our patients was the m o s t i m p o r t a n t factor in establishing the diagnosis o f reversible mesenteric vascular occlusion. H o w e v e r , it should be realized that the ultimate course of the disease cannot be predicted solely on the basis of initial barium studies.…”

Reversible Ischaemic Colitis Due to Venous or Small Vessel Occlusion:A Diagnosis by Plain Abdominal Radiography

“…'' Transverse ridging " or corrugation, a lucent band traversing the circumference of the colon and producing symmetrical indentations at its margin (Boley et al, 1963;Schwartz et al, 1963), was not observed in our patient. This radiological sign is not peculiar to vascular occlusion and may be seen in early ulcerative colitis (Anton and Palmer, 1962 ;Schwartz et al, 1961) ; it probably results from colonic spasm (Schwartz et d., 1964).…”

Inflammatory changes proximal to obstructing lesions in the small intestine

“…Boley et al [10] studied the roentgenologic and pathologic changes produced by experimentally occluding colonic vessels in dogs and concluded that the "thumbprinting" and "pseudotumors" seen radiographically were, in fact, submucosal hemmorrhage and pericolic fat inflammation pathologically. Schwartz et al [11] then concluded further that these areas of submucosal hemorrhage either resolved spontaneously or eventually evolved into areas of ulceration that strongly resembled those seen in ulcerative colitis.…”