Superficial Fungal Infections

Question 1

thrush:

Answer 1

white, curd-like plaques on oral mucosa and tongue. nystatin is treatment.

Question 2

tinea versicolor:

Answer 2

hypo or hyper pigmented patches. covered in fine powdery slcaes. caused by malassezia and requires fat to grow. shows in woods light.
RESISTANT TO GRISEOVULVIN.
tx: selenium sulfide or other antifungals

Question 3

TINEAS:

Answer 3

tinea capitis: hair loss on scalp, treat with griseofulvin

tinea pedis: cracking, maceration and itching on foot. treatment is topical antifungals.

Question 4

Herpes simplex

Answer 4

HSV 1 and 2. Primary lesion is a vesicle. often found in small clusters. viscose rupture and form a secondary plaque. treatment is recurrent. primary lesion is painful. lasts around 1 week.

tx: oral antivirlas

Question 5

herpes zoster

Answer 5

pain and parasthesia lasting 48 hours. vesicular eruption in a unilateral dermatomal pattern. duration is 2-3 weeks. MEDICAL EMERGENCY IF THIS IS ON THE EYE (look for Hutchinson’s sign, a strong predictor it will effect eye)

tx: pain management, antivirals

Question 6

Urticaria:

Answer 6

erythematous macules and weals on the skin.
due to release of histamine from mast cells leads to tissue swelling.
acute - less than 6 weeks–> foods bugs drugs
chronic –> longer than 6 weeks may be due to autoimmune condition
tx: oral antihistamines, if severe then maybe coriticosteroid.