Superficial Mycosiss

Question 1

Malassezia furfur:

Answer 1

Lipophilic yeast found as normal flora on the skin
Cause :
Pityriasis Versicolor
Pityriasis folliculitis
Seborrhoeic dermatitis
Systemic to infection

Question 2

Tinea versicolor :

Answer 2

Very common disease caused by lipophilic yeast Malassezia furfur, appears as patch lesion on neck back and chest and shoulders, Asymstoic

Question 3

Cilincle manifestation of tinea versicolor:

Answer 3

Macule
White cream pink red brown scale painless and not itching

Question 4

Pityriasis Folliculitis

Answer 4

Also, malaseezia folliculitis is seen in patients who are severely ill or patients after sun exposure
Follicular papules
Back neck and upper arm
Itchy

Question 5

Lab diagnosis of Malassezia furfur:

Answer 5

Sampling
Direct
Culture test: For systemic infection by sheep blood agar

Question 6

White piedra :

Answer 6

Caused by trichosporon begelii
Common in younger adults irregular soft nudules

Question 7

Lab diagnosis for white piedra:

Answer 7

Sample =hair
Direct microscopy
Culture: white deep cream colored

Question 8

Black piedra

Answer 8

Caused by Piedra hortae
Sample =hair
Direct microscopy
Culture test =primary isolation media

Question 9

Tinea nigra:

Answer 9

Caused by Exophilia werneckii