pityriasis%20(tinea)%20versicolor%20(pediatric)
PITYRIASIS (TINEA) VERSICOLOR (PEDIATRIC)
Pityriasis (tinea) versicolor is a benign, superficial, common fungal infection localized to the stratum corneum.
It occurs most commonly in postpubertal individuals when the sebaceous glands are the most active.
Facial involvement is common in adolescents, but lesions are also found on the upper trunk, neck, arms, dorsum of the hand and pubis.
Patient presents with erythematous, hypo- or hyperpigmented macules or patches that may have a slight scale.
It is caused by the lipophilic yeast Malassezia furfur.

Laboratory Tests

Microscopy

  • Potassium hydroxide (KOH) examination of skin scrapings should confirm the diagnosis
    • Scales or debris are mounted in 10-15% KOH solution & viewed under light microscope
    • Short stubby hyphae & yeast cells will be visible (appears as “spaghetti & meatballs”)

Culture

  • Culture is not usually helpful because Malassezia spp is difficult to grow as it is part of the normal flora

Wood’s Light Exam

  • Malassezia spp shows pale yellow to white fluorescence on Wood’s light exam
Digital Edition
Asia's trusted medical magazine for healthcare professionals. Get your MIMS JPOG - Malaysia digital copy today!
DOWNLOAD
Editor's Recommendations
Most Read Articles
Elvira Manzano, 6 days ago
Bisphosphonates have proven antifracture efficacy and remain to be the cornerstone of osteoporosis treatment. However, a drug holiday is of particular importance with bisphosphonates due to some signals with long-term use of the drug, including rare incidence of atypical femoral fracture (AFF) and osteonecrosis of the jaw (ONJ), says a leading endocrinologist at AFOS 2017.
Yesterday
Drinking coffee, whether caffeinated or decaffeinated, is associated with a reduced risk of cardiovascular disease (CVD) and ischaemic heart disease (IHD) mortality in patients with a prior myocardial infarction (MI), according to a recent study.
3 days ago
Breast cancer patients have notably different microbiomes in the local breast tissue and urinary tract, a recent study reveals. Particularly, species in the Methylobacterium genus are reduced in the local breast tissue while the urinary tract is enriched in gram-positive bacteria.
Pearl Toh, 13 Oct 2017
Women with higher plasma tryptophan concentrations were less likely to have poor sleep quality during pregnancy, especially among those with anxiety symptoms, according to the GUSTO* study.