Venous Involvement in Takayasu's Disease: Does it Exist?

We describe the case of a 46-year-old man with an isolated superior vena cava syndrome, which was relieved by surgery. Pathologic examination revealed segmental involvement of the superior vena cava with dense collagen sclerosis. Histiomonocytic inflammatory transmural infiltration of all layers was histologically compatible with lesions described in Takayasu's disease. Although not previously described, this pathologic aspect suggests the possibility of venous involvement in this disease.