The Kidney and Intravascular Coagulation in Myelomatosis

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Abstract
In 15 out of 35 patients with myelomatosis histological examination showed intravascular fibrin within the glomeruli, and this was associated with proliferation of the mesangial complex in 12. The presence of intravascular fibrin and mesangial proliferation was not associated with any specific immunoglobulin abnormality or with the presence or absence of Bence Jones proteinuria. In addition to fibrin being present within glomerular capillaries it was also shown in intertubular capillaries in three cases of myelomatosis with acute tubular necrosis. It is suggested that intraglomerular coagulation and fibrin deposition may contribute to the genesis of renal failure in myelomatosis.