Tinea - dermatophytoses Flashcards
What is Tinea?
Ring worm
What is Tinea pedis and what complication can arise from it?
Athlete’s foot
= fungal infection of the feet. It can lead to complications such as cellulitis
How does Tinea pedis typically enter the skin?
Tinea pedis typically enters moist skin, making areas like the spaces between the toes especially vulnerable to infection.
What is the characteristic appearance of Tinea infections on the skin?
Often leave a ring-shaped appearance on the skin
What is Tinea cruris, and where does it occur on the body?
Fungal infection that occurs in the groin area, commonly known as jock itch
What is Tinea incognito?
When a fungal infection worsens due to the use of topical steroids, causing the lesions to become less red, change shape, and spread
What is Tinea capitis and where does it affect the body?
Fungal infection of the scalp. It can lead to hair loss in the affected areas and may cause itching or scaling
What is Tinea unguium?
fungal infection that affects the nails
What is Tinea manuum and where is it found on the body?
Fungal infection that affects the hands
A 10-year-old boy is brought into the GP practice with a rash first noticed by his mother 2 weeks ago. This was previously seen by another GP and a course of steroid cream was prescribed 1 week ago. Subsequently, the rash has spread and become more itchy. On examination, there are several round erythematous lesions with indistinct margins, present on the forearm and elbow creases. He is otherwise well.
What is the most likely diagnosis? and why is this the answer?
Tinea incognita
= fungal skin infection whose appearance has been altered by inappropriate steroid treatment
A 67 year old gentleman is due to be started on terbinafine for a dermatophyte nail infection.
What single investigation should be done before and during treatment?
Liver function
A 28-year-old woman presents with scaly patches of skin on her chest and back. She first noticed these on a recent holiday to Spain. The patches are itchy and appear lighter compared to the rest of her skin. On examination, there are numerous hypopigmented lesions on her upper chest and back with slightly flaky skin. The patient is systemically well.
Given the likely diagnosis, what is the most appropriate treatment option?
Topical ketoconazole + clotrimazole
An 85-year-old woman visits her GP for a routine checkup of her diabetes. While there, she also tells the GP that she has a rash under her breasts that she is concerned about. On examination, she has a bilateral, red rash affecting her sub-mammary folds. There are a few pustules in the center of one of them.
What is the most likely diagnosis?
Candida albicans infection
