CARRIE ANN R.CUSACKMDSENAIT W.DYSONMDJACQUELINE M.JUNKINS-HOPKINSMDVINCENTLIUMDKARLA S.ROSENMANMD
Histopathologic examination showed hyperkeratosis and psoriasiform hyperplasia of the epidermis and a dense plasma cell–rich infiltrate in the dermis. A Treponema pallidum–specific immunoperoxidase stain was intensely positive within the epidermis and dermis. Serologic findings were positive for the VDRL test and the T pallidum hemoagglutination assay (TPHA), with a dilution of 1:32 and 1:5120, respectively; findings were also positive for the treponemal antibody-absorption test. Neurologic evaluation and cerebrospinal fluid tests ruled out neurosyphilis. Total body tomographic scans excluded extracutaneous involvement.
Psoriasiform Eruption and Pharyngitis—Diagnosis. Arch Dermatol. 2008;144(2):255-260. doi:10.1001/archdermatol.2007.43-b