Cutaneous changes in the porphyrias. A microscopic study.
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Biomedical subjects
Publications and source records attributed to D L Tuffanelli.
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A patient with lymphosarcoma had a VDRL test reactive at 1:256. A prozone phenomenon was also present. The nontreponemal test result was shown to be a false-positive reaction by nonreactive Treponema pallidum immobilization and fluorescent treponemal antibody absorption tests. High-titer serologic tests for syphilis are uncommon, and prozone reactions are previously unrecorded in the false-positive reactor.