porphyrinuria /por·phy·rin·uria/ (por″fĭ-rĭ-nu´re-ah) excess of one or more porphyrins in the urine.
por·phy·ri·nu·ri·a (pôr f -r-n r  -)n. The excretion of abnormal concentrations of porphyrins and related compounds in the urine. Also called purpurinuria. |
porphyrinuria
an excess of porphyrin in the urine. The urine is of normal color on voiding but darkens to a red-brown after exposure to light.
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