Severe Monocytosis (perhaps in CMML) causes marked lysozymuria - which can be confused and read as nephrotic range proteinuria and this is actually pseudo nephrotic syndrome. This case report below mentions this confounder in measurement of proteinuria. Unclear if this would be an issue today as we have much more sophisticated measuring devices for albumin and total protein.Ref:
http://www.annals.org/content/121/10/818.1.long
image source: Wikipedia.com
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