Primary Stage: Primary lesion or chancre in the genital area. Dull red macule develops, becomes papular and then erodes to indurated ulcer (chancre). Inguinal lymph nodes may become moderately enlarged, mobile, discrete and rubbery. Chancre and the lymph nodes are both painless and non-tender
Secondary features: occurs 1-6 months after primary infection: Systemic symptoms: fevers , painless generalized lymphadenopathy Generalized symmetrical rash on trunk, palms and soles Buccal 'snail track' ulcers Condylomata lata .
Snail track ulcer
Condylomata lata
Tertiary features: (cardio-syphilis & Neuro -syphilis) Occurs up to 10-25 years following the original inoculation. Gummas Cardiovascular syphilis: AA Aortic aneurysms, Aortic regurgitation and Aortitis . Neurosyphilis : GPI ( General paralysis of the insane ): Gradual onset confusion, Hallucinations, Tremors, Fits, Cognitive impairment, Hyperreflexia , and Argyll-Robertson pupils. TD ( Tabes dorsalis ) – Ankle reflex absent & extensor plantar
Gumma
Features of congenital syphilis: 1) Blunted upper incisor teeth 2) Saddle nose 3) deafness 4) Keratitis 5) Sabre shins
Hutchinson teeth & sabre shin
Investigation: Serological tests can be divided into: Cardiolipin tests (not treponeme specific): VDRL (Becomes negative after treatment) and RPR. Treponemal specific antibody tests: TPHA (Remains positive all the life even after treatment) TPHA is positive for both syphilis and Yaws
Management: Benzyl-penicillin long-acting 2.4 million units single IM injection. Alternatives: doxycycline
Chancre Treponema pallidum Painless Hard indurated edge Non exudative Heal spontaneously within 3-6 wks. even if no ttt . Chancroid Haemophilus ducreyi Painful Soft , ragged edge Grey or yellow purulent exudate Need Treatment
Chancre Chancroid
1. A 34-year-old man presents with a widespread maculopapular rash and mouth ulcers. Two months ago he presented to the local GUM clinic after developing a painless penile ulcer . At the time he was noted to have inguinal lymphadenopathy . Which one of the following organisms is most likely to be responsible? a) Lymphogranuloma venereum b) Herpes simplex virus type 2 c) Mycoplasma genitalium d) Haemophilus ducreyi e) Treponema pallidum