Fig. 2
A 72-year-old woman was admitted due to acute abdomen with severe abdominal pain for 2 days with tenderness and muscle guarding on palpation. a Plain radiograph shows curvilinear calcifications (arrows) alongside the right colon. b, c Axial and coronal CT show curvilinear calcifications of the straight and marginal veins alongside the ascending colon with thickened walls, prominent pericolic edema and inflammatory stranding. d Surgery revealed a swollen right colon with dark-purple discoloration. e Photomicrograph (H and E, × 40) shows mesenteric veins (open arrows) with marked fibrosclerotic wall thickening and intraluminal calcifications (black arrows), confirming PC