Fungal Infections Flashcards
What are the 3 broad categories on fungal infections in dermatology?
Superficial
Deeper
Systemic
What is a superficial fungal infection?
Infect skin via stratum corneum, hair and nails
What is a deeper fungal infection?
Can go into SCT and dermis
What are systemic fungal infections?
Blood borne
What is the most commonly seen fungal infection in dermatology?
Dermatocyte infections
How do dermatocyte infections reach humans? (3)
Human-human
Animal-human
Soil-human
In tinea corpis, which part of the skin is usually affected?
Glabrous (non-hairy skin) on the body
In tinea corpis what is the rash like?
Very itchy
3 species causing tinea corporis
T rubrum
M canis
T verrucosum
Where does Tinea cruris affect?
The groin
Is Tinea cruris more common in men or women?
Men
Causative agent in Tinea cruris
T rubrum
How does tinea cruris present?
Begins as well demarcated pruritis erythematous plaque on thighs –> pubic, suprapubic, perianal + buttock regions
Where does tinea manuum form?
Hands
Tinea manuum presentation
Asymetrical involvement wit scarring
> Prominent one hand
Rash spreads from dorsum proximally
Another name for Tinea pedis
athlete’s foot
More common presentation of athlete’s foot?
White maceration between toe webs
When v severe, how does athletes foot present?
Scaling, pustules, erythema on sole foot
What is mossacin feet?
When athletes foot is widespread and bilateral
Where is ochomycosis most common?
Feet
How does onchomycosis present?
Distal white discoloration
Loss of nail plate
Onycholysis
Hyperkeratosis
DDx onchomycosis
Psoriasis
Who is particularly prone to tinea capitis?
Children
How does tinea capitis present?
Patchy hair loss with varying degrees of scale, erythema and pustules
