Tinea

Question 1

What is tinea?

Answer 1

Fungal infection from DERMATOPHYTE FUNGUS (ringworm)

Tinia = dermatophyte
Candida = candida
Pityriasis versicolor = malassezia

Tinea given different names depending on where it affects:

tinea pedis = athletes foot

tinea corporis = affets limbs (aka ringworm)

Question 2

How do you get tinea?

Answer 2

Usually caught from infected individual:
- shared towels, skin contact, barefoot changing rooms

Tinea pedis:

• occlussive footware
• excessive sweating / exercise
• diabetes

Use of steroids and immunosuppression.

Question 3

Presentation of tinea?

Diagnosis?

Answer 3

• acute or gradual onsite
• usually itchy and inflammed (particularly feet)
• pedis affects spaces between toes, can be scaly

DIAGNOSIS
clinical
skin scraping can be sent (culture can take months but typical features might be seen on microscopy)

Question 4

Differential Dx when considering tinea?

Answer 4

Tinea pedis:

• eczema
• psoriasis
• contact dermatitis

Tinea corporis:

• impetigo
• seborrheic dermatitis
• psoriasis
• eczema
• lichen simplex
• contact dermatitis
• pityriasis rosea

Question 5

Management of tinea?

Answer 5

General:

• dry thoroughly
• avoid occlusive footwear
• use sandal in shared shower / changing

TOPICAL

• OD or BD
• terbinafine (lamsil)
• clotrimazole
• miconazole

ORAL

• resistant cases
• terbinafine 250mg for 2 weeks
• fluconazole 150mg once weekly for 6 weeks
• itraconazole
• treat shoes with anti-fungal powder