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 1193137189 T1 Clinical Stages of Syphilis T2 Current Medical Diagnosis & Treatment 2023 YR 2023 FD 2023 PB McGraw-Hill Education PP New York, NY SN 9781264687343 LK accessmedicine.mhmedical.com/content.aspx?aid=1193137189 RD 2024/10/11 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.