Superficial mycosis

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 - gt50

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

50
(No Transcript)
51
(No Transcript)
52
(No Transcript)
53
(No Transcript)
54
DIAGNOSIS

• Clinical features (diff.diagnosis)
• Microbiology
• Histopathology
• DNA amplification

55
HISTOPATHOLGY

• Haematoxylin and eosin (HE)
• Periodic acid-Schiff (PAS)
• Grocott

56
(No Transcript)
57
Fungal Keratitis

• Treatment
• Natamycin 5 drops (filamentous)
• Works particularly well Fusarium spp
• Amphotercin B 0.15-0.30 (Candida)
• Most effective for yeast

58
Otomycosis
59
Otomycosis

• Bacterial, viral or fungal infection of external
  auditory canal
• Categorized by time course
• Acute
• Chronic
• Swimmers ear

60
Organisms

1. Fungi
2. Aspergillus
3. Candida species
4. Pseudomonas species
5. Staphylococci
6. Streptococci
7. Gram negative rods

61
Risk Factors

• High humidity
• Water exposure
• High environmental temperature
• Local trauma
• Allergy
• Stress
• Alkaline pH of canal

62
Otomycosis

• Often indistinguishable from bacterial OE
• Dull pain
• Hearing loss (obstructive)

63
(No Transcript)
64
(No Transcript)
65
Otomycosis

• Treatment
• Thorough cleaning and drying of canal
• Topical antifungals
• Clotrimazole
• Acidifying of the EAC with drops like
• 2 acetic acid
• 3 boric acid

66
?????????????

• ??????? ???
• ?????
• ?????
• ????? ? ????
• ????? ? ??????
• ????

67
?????????????

• Dermatophilus congolonsis
• ???????????
• ?????? ? ???
• ??????? ????
• ??? ??????
• ???? ??????
• Lumpy wool

68
????? ??????

• ??????
• ??? ??? ?? ???
• ??????
• ??? ??? ??
• ???? ????
• ?????
• ??????

69
????? ??????????

• ????? ????
• ????? ? ??????
• ??????
• ??? ?????
• ????? ???
• ?????
• ???? ??? ?????? 2- 5 ??????
• 8 ?????
• ???
• ???? ????
• 37 ????

70
????? ??????????

• ??????? ????
• ???? ?? ????
• ???? ??? ????
• ???????? ?????? ????

71
?????

• ?????? ??
• ?????? ??? 5/ ????
• ??? ?????

72
???????? ???? ??

• Pitted keratolysis
• ???? ???? ?? ??
• ?????? ???? ???

73
???? ??????

• ???????????
• ????????
• ???????????
• ?????? ????????

74
????? ????? ?????

• ?????
• ????
• ????? ????? ??????
• ????
• ?????

75
????? ??????

• ???? ??? ???? ?? ??
• ??????? ? ????? ??
• ????? ??????
• ?????? ???? ???
• ??? ???????

76
(No Transcript)
77
(No Transcript)
78
(No Transcript)
79
(No Transcript)
80
????? ??????????

• ????? ????
• ?????
• ??????
• ???? ? ??? ?????
• ???? ? ?????
• ???
• ???? ???

81
?????

• ?? ??? ???? ????? ????? ?????
• ??????? 20 ?? 40 ????