Drs Duffy and Letteri raise an important point, and their contentions are correct. A more appropriate statement on our part would have been "The association between nephrotic syndrome and renalvein thrombosis is well recognized." A recent publication by Llach et al1 sheds additional light on this problem.
Luft FC. Renal Vein Thrombosis and Nephrotic Syndrome-Reply. JAMA. 1976;235(19):2079. doi:10.1001/jama.1976.03260450011004