Fungal Diseases Flashcards
What are the three classifications of fungal infections?
- Superficial/Cutaneous
- Subcutaneous
- Systemic
What methods are used for diagnosing fungal disease?
HISTORY - ?Exposure ?geographical travel
Clinical appearence
Fluorscence
Microscopy after scraping
Serology
What are the common superficial/cutanous fungal infections?
Dermatophytosis (Ringworm/tinea)
Pityriasis versicolor
Candidasis
What are the symptoms of dermatophytosis?
Red, scaly, flaky, itchy rash
On nails it can cause discolouration
On scalp/hair it can cause hair loss
how is dermatophytosis transmitted?
Close contact eg towels, brushes, beds
Zoophilic - from animals
What is the treatment of dermatophytosis?
Clotrimazole on skin
Terbinafine if severe or if in nails or hair as cream cant get here
What causes pityriasis versicolor?
Malassezia furfur
What is pityriasis versicolor?
Superficial Fungal infection of stratum corneum causing hyper or hypopigmentation
When does pityriasis versicolor occur?
When fungus goes from yeast to pseudohyphal form
how is pityriasis versicolor treated?
Ketoconazole shampoo
Oral fluconazole or itraconozole
What is superficial candidiasis?
Superfical skin infection of mucous membranes usually caused by C.albicans
Where can superficial candidiasis occur?
Vagina
Mouth
Glans penis
What are risk factors for superficial candidiasis?
Antibiotic use
Moist skin
Diabetes
Poor immunity
What is systemic candidiasis?
A candida infection of the blood or organs that occurs in immunocompromised patients
What causes cryptococcis, what is and what is it associated with?
Cryptococcis neoformans
fungal infection from pigeon droppings causing systemic infection - enters via lungs
Commonly presents with CNS symptoms apart from if immunosuppressed then it is pulmonary symptoms
