Hair Clipping For Fungal Elements
- Sample Type
- Hair Clipping
- Fasting
- No
- Unit
- N/A
Function
Microscopic examination and culture of hair clippings are used to detect dermatophytes (fungi) that infect the hair shaft and follicle. This often involves a KOH (Potassium Hydroxide) mount, which dissolves keratin to reveal fungal hyphae or spores, and a fungal culture for definitive identification of the species.
Why it is Ordered
It is ordered when a patient shows signs of Tinea Capitis (scalp ringworm), which includes patchy hair loss (alopecia), scaling, itching, and inflammatory crusting (kerion). Clinical diagnosis alone can be difficult as it mimics psoriasis or seborrheic dermatitis; laboratory confirmation ensures that potentially toxic antifungal medications are only prescribed when necessary.
Associated Conditions
- Tinea Capitis: Fungal infection of the scalp hair.
- Tinea Barbae: Fungal infection of the beard area.
- Favus: A severe form of tinea capitis causing yellow crusts (scutula).
- Alopecia Areata: Often a differential diagnosis that this test helps rule out.
Check Your Result
Check Your Result
Enter your lab result to see where you stand compared to the standard reference range.
Why Context Matters
False negatives are common if the sample size is inadequate or if the 'stump' hairs (which contain the most fungus) were not collected. Recent use of antifungal shampoos, creams, or oral medications can also yield a false negative result. If symptoms persist despite a negative result, a repeat sampling or a punch biopsy may be warranted.
Lab ranges are statistical averages, not biological laws. "Normal" for a 20-year-old male isn't normal for a 60-year-old female.
Clinical References
Source-of-truth databases and clinical guidelines for Hair Clipping For Fungal Elements:
Official Sources
- Guidelines for the management of tinea capitis in children - PubMedpubmed.ncbi.nlm.nih.gov
- S1 guidelines: Tinea capitis - PubMedpubmed.ncbi.nlm.nih.gov
Research & Guidelines
Related Indicators
Medically Reviewed by Dr. Binoy Babu, MBBS
Board Certified Doctor • 10+ Years Clinical Experience
Dr. Babu is a practicing physician dedicated to empowering patients with clear, actionable medical information. He founded 2opi to bridge the gap between complex lab reports and patient understanding, ensuring everyone has access to a reliable second opinion.
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