a characteristic pipe-shaped fibrosis formed around hepatic portal veins in some cases of long-continued heavy infection with Schistosoma mansoni; thought to be induced by the presence of large numbers of schistosome eggs in the hepatic tissues.
pipestem fibrosisA descriptor for the histologic appearance–portal vein fibrosis with hyaline thickening and tortuosity of vessels of portal spaces in liver involvement by Schistosoma mansoni and S mekongi; schistosomal hepatopathy mimics cirrhosis with hepatosplenomegaly, portal HTN, 2º HTN, and variceal bleeding; native architecture is preserved
Symmers,William St. Claire, English pathologist, 1863-1937.
Symmers clay pipestem fibrosis - a characteristic pipe-shaped fibrosis formed around hepatic portal veins. Synonym(s): pipestem fibrosis