<prompt> A 22 year old college going adult has Ho sexual exposure with commercial sex worker, now presenting with painful genital lesions and lymphadenopathy in right inguinal region. What is the diagnosis?SyphilisChancroidLGVGonorrhea  <response>: Ans. b ChancroidRef: MICRONS- Microbiology simplified - 2nd ed - by Malathi MurugesanDiseaseUlcerLymphnodesPrimary syphilisChancre painlessPainless-bilateralChancroidpainfulPainful -usually unilateralDonovanosisPainless beefy redPSEUDOBUBO lesion appearing in groin may present like lymphadenopathy prior to ruptureLGVTransientPainful usuallyHerpesPainfulPainfulCourtesy: from MICRONS- Microbiology simplified-2nd ed - by Malathi MurugesanDifferences between chancroid and IGV buboChancroid buboLgv bubo90 unilateral23 unilateralMattedNot mattedUnilocularMultilocularRupture with single openingRupture with multiple openingAccompanied by genital ulcerNot accompanied by genital ulcerGroove sign negativeGroove sign positivePrimary syphilis - presents as chancre Hunterian ChancreChancreChancroidSingleMultiplePainlessPainfulClean baseNecrotic baseBilateral inguinal nodesUnilateral inguinal nodesNo exudatesYellow exudates 