Non-Venereal Treponematoses (MØØV)
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Definition: Non-venereal treponematoses are infectious diseases caused by the bacterium Treponema pallidum, but not transmitted through sexual contact.
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Types:
- Endemic syphilis
- Yaws
- Pinta
- Bejel (also known as non-venereal syphilis)
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Pathogenesis of Non-Venereal Treponematoses: → Infection occurs through broken skin or mucous membranes. → Treponema pallidum enters the bloodstream and multiplies. → Immune response is triggered, but the bacteria evade it. → Bacteria multiply in the skin and mucous membranes. → Clinical manifestations appear.
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Morphology of Treponema pallidum:
- Spiral-shaped bacteria.
- Approximately 6-15μm in length.
- Diameter of 0.1-0.2μm.
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Clinical Features of Non-Venereal Treponematoses:
- Fever
- Headache
- Muscle pain
- Skin lesions (rash, papules, or ulcers)
- Lymphadenopathy
- Mucosal lesions (oral, nasal, or genital)
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Endemic Syphilis:
- Also known as Bejel.
- Highly contagious.
- Spread through skin-to-skin contact.
- Common in children.
- Clinical features:
- Rash
- Ulcers
- Lymphadenopathy
- Mucosal lesions
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Yaws:
- Highly contagious.
- Spread through skin-to-skin contact.
- Common in children.
- Clinical features:
- Papules
- Ulcers
- Lymphadenopathy
- Mucosal lesions
- Deformity of the long bones
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Pinta:
- Less contagious than yaws.
- Spread through skin-to-skin contact.
- Common in children.
- Clinical features:
- Macules
- Patches
- Lymphadenopathy
- Mucosal lesions
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Diagnosis of Non-Venereal Treponematoses:
- Clinical diagnosis based on symptoms and history.
- Serological tests (RPR, VDRL, FTA-ABS).
- Darkfield microscopy.
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Management of Non-Venereal Treponematoses:
- Penicillin G (intramuscular injections).
- Treatment duration: 10-14 days.
- Secondary infections treated with antibiotics.
Memory Trick: "Tom, Dick, and Harry too, Catch Yaws, Pinta, and Syphilis in a row. Endemic Syphilis, they all do play, In the non-venereal treponematoses family."