We have been asked to investigate a 43 y.o. man who has an unusual pptate
in his urine. He complains of chronic bone pain, cervical, low back and
other places. His laboratory results are unexceptional and urology
investigations are normal.
We sent the following report on a previous sample;
Stone analysis of deposit yielded the following further
information.
The material is soluble in concentrated hydrochloric acid,
but DOES NOT effervesce indicating that it is not a
carbonate salt.
Analysis indicates the presence of calcium and phosphate BUT
NOT uric acid, cysteine, ammonium ion, or oxalate.
03/03/05 1110:
FLUID ANALYSIS previously reported as: SEE COMMENT
Urine pH 7.1. Precipitate consists of a dense white
flocculate material.
Microscopy revealed cellular debris, but no casts.
The precipitate was organic in nature, insoluble in ether,
(hence not a lipid/fatty nature) and did not give positive
reactions for protein and albumin.
He was told his symptoms were the result of depression. Now 6 months later
he is still complaining. I have offered to have further analysis on this
unusual urine deposit which is apparently greater after he has eaten.
Would anybody offer to try and identify the material. I have asked the
usual questions and the G.P. is convinced that this is genuine.
Regards, David.
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