RT Book, Section A1 Philip, Susan S. A2 Papadakis, Maxine A. A2 McPhee, Stephen J. A2 Rabow, Michael W. A2 McQuaid, Kenneth R. SR Print(0) ID 1184172645 T1 Clinical Stages of Syphilis T2 Current Medical Diagnosis & Treatment 2022 YR 2022 FD 2022 PB McGraw-Hill Education PP New York, NY SN 9781264269389 LK accessmedicine.mhmedical.com/content.aspx?aid=1184172645 RD 2024/03/29 AB ESSENTIALS OF DIAGNOSISPainless ulcer on genitalia, perianal area, rectum, pharynx, tongue, lip, or elsewhere.Fluid expressed from ulcer contains T pallidum by immunofluorescence or darkfield microscopy.Nontender enlargement of regional lymph nodes.Serologic nontreponemal and treponemal tests may be positive.