Case Report

Ureteral Strangulation by Fibrosis: A Cold Case Report of Ormand's Disease

Table 3

Differential diagnosis of retroperitoneal fibrosis [4].

Retroperitoneal fibrosisRetroperitoneal lymphomaSclerosing mesenteritisDesmoid-type fibromatosisInflammatory myofibroblastic tumorWell-differentiated liposarcoma sclerosing variant

Ureteral obstruction~80%~50%RareRareRareUnknown
Ureteral displacementMedialLateral
Aortic displacementRareAnterior
Reactive perivascular lymphoid aggregates100%AbsentVariableRareVariablePresent in the inflammation type
NecrosisAbsentVariableFat necrosisRareFocalFat necrosis
Vasculitis~50%AbsentAbsentAbsentAbsentAbsent
B-CateninNegativeUnknownNegativePositive in 90%NegativeVariable
ALK-1NegativeNegativeNegativeNegativePositive in 50%Negative
DesminNegativeNegativeVariableRarePositiveRare
S100NegativeNegativeNegativeRareNegativePositive in adipocytic component