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Superficial mycosis

Superficial mycosis. Maculae Papule Vesicle Bulla Pustule Nodule Fistula Scale. Superficial mycosis. Definition Fungi Pityriasis versicolor Tinea nigra Piedra Bacteria Erythrasma Trichomycosis axillaris. Superficial mycosis. Otomycosis Keratomycosis Pitted keratolysis

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Superficial mycosis

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  1. Superficial mycosis • Maculae • Papule • Vesicle • Bulla • Pustule • Nodule • Fistula • Scale

  2. Superficial mycosis • Definition • Fungi • Pityriasis versicolor • Tinea nigra • Piedra • Bacteria • Erythrasma • Trichomycosis axillaris

  3. Superficial mycosis • Otomycosis • Keratomycosis • Pitted keratolysis • Dermatophylosis

  4. Pityriasis versicolor • Tinea versicolor • Maculae • Malassezia spp • Normal flora • Boys & girls • After maturation • Beauty • Warm & humidity • Season

  5. Pityriasis versicolor • Conditions: • Health • Sweat • Greasy skin • IC. • Chronic bacterial infections • Steroids

  6. Pityriasis versicolor • Clinical manifestations: • Maculae • White, cream, pink, red, brown • Position • Scale • Painless • Not itching

  7. Superficial mycosis • Pityriasis versicolor

  8. Superficial mycosis • Pityriasis versicolor

  9. Superficial mycosis • Pityriasis versicolor

  10. Superficial mycosis • Pityriasis versicolor

  11. Superficial mycosis • Pityriasis versicolor

  12. Superficial mycosis • Pityriasis versicolor

  13. Superficial mycosis • Pityriasis versicolor

  14. Superficial mycosis • Pityriasis versicolor

  15. Superficial mycosis • Pityriasis versicolor

  16. Pityriasis versicolor • Differential diagnosis: • Vitiligo • Chloasma

  17. Pityriasis versicolor • Laboratory diagnosis: • Sampling • Scalpel • Scathe tape • Wood ́s lamp • Direct • Culture

  18. Pityriasis versicolor • Treatment • Selenium sulfide • Clotrimazole

  19. Tinea nigra • Phaeoanellomyces werneckii • Exophiala werneckii • Ecology • Palm • Tinea nigra palmaris

  20. Tinea nigra • Clinical manifestation: • Annular • Centrifuge • Regular or irregular • Painless • No itching

  21. Tinea nigra • Differential diagnosis: • Malignant melanoma • Silver nitrate

  22. Tinea nigra • Laboratory diagnosis: • Sampling: • Scalpel & KOH10% • Direct: • Hyphae • Chlamydioconidia • Culture: • S

  23. Tinea nigra • Treatment • Keratolytic ointment • whitfield

  24. Piedra • Hair • Nodule • Bread, groin, axillar • White & black

  25. Piedra • Clinical manifestation: • White piedra: • Trichosporon beigelii • Basidiomycetes • Nodule • Bread, head, pubis • White, brown, yellow, • Soft

  26. Piedra • Clinical manifestation: • Black piedra: • Piedra hortae • Ascomycetes • Nodule • Head • Thick • Black to brown

  27. Piedra • Differential diagnosis: • Pediculosis

  28. Piedra • Laboratory diagnosis: • Sampling: • Sesser & KOH10% • Direct: • White: hyphae & arthroconidia • Black: ascus & ascospore • Culture: • S

  29. Piedra • Treatment: • Scraping • Clotrimazole

  30. Erythrasma • Bacteria • Corynebacterium minutissimum • Chronic • Intertrigenous

  31. Erythrasma • Clinical manifestation: • Maculae • Red or brown • Scale • Itching • No inflammation

  32. Superficial mycosis Erythrasma

  33. Superficial mycosis Erythrasma

  34. Superficial mycosis Erythrasma

  35. Superficial mycosis Erythrasma

  36. Erythrasma • Differential diagnosis: • Pityriasis versicolor • Candidiasis • Tinea cruris

  37. Erythrasma • Laboratory diagnosis: • Sampling: • Scalpel & simple staining • Direct: • Strand • Culture: • BHI, Blood agar • Wood ́s lamp

  38. Erythrasma • Treatment • Erythromycin

  39. Trichomycosis axillaris • Bacteria • Corynebacterium tenuis • Nodule • Hair • Axillaries & pubis • Red • Yellow • black

  40. Trichomycosis axillaris • Differential diagnosis: • Pediculosis

  41. Trichomycosis axillaris • Laboratory diagnosis: • Sampling: • Sesser & KOH10% • Direct • Culture

  42. Trichomycosis axillaris • Treatment • Scraping and sulphur ointment 3%

  43. Keratomycosis FUNGAL KERATITIS (FK)

  44. INCIDENCE OF FK • Developed world 6 -35% of all microbial keratitis • Developing world 22 - >50%

  45. FUNGAL GROUPS • Filamentous Fusarium Aspergillus Dematiaceous • Yeasts Candida

  46. Fungal Keratitis • Risk factors: • Topical corticosteroids ↓corneal resistance to infection • Contact lens use • Immunocomprised states

  47. Fungal Keratitis • Risk factors • Injury, ocular surface compromise • Temperature • Wind • Humidity • Urbanisation/employment

  48. Fungal Keratitis • Exogen • Endogen

  49. Fungal Keratitis • Gray-white color, dry, and rough corneal surface • White ring in the cornea and satellite lesions near the edge of the primary • Most cases remain superficial but deep invasion may occur

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