White piedra

White piedra
Other names: Tinea blanca
SpecialtyInfectious disease

White piedra (or tinea blanca) is a mycosis of the hair[1] caused by several species of fungi in the genus Trichosporon. It is characterized by soft nodules composed of yeast cells and arthroconidia that encompass hair shafts.

Signs and symptoms

Detachable nodules of size 1-1.5 mm present over shaft

Tinea blanca is identified due to friable, beige nodule of the distal ends of hair shafts. [2]

Diagnosis

White piedra can occur on the hair of the scalp; Trichosporon ovoides is likely the cause in this case.[3] White piedra on scalp hair is rarely caused by Trichosporon inkin; pubic hair with white piedra is what T. inkin is mainly associated with.[4] White piedra can occur on pubic hair; T. inkin likely causes this.[3]

Treatment

There are several approaches to treat this infectious disease. One approach involves shaving the affected areas. Another approach involves the use of antifungal medication.[5]

See also

References

  1. ↑ Pontes ZB, Ramos AL, Lima Ede O, Guerra Mde F, Oliveira NM, Santos JP (July 2002). "Clinical and mycological study of scalp white piedra in the State of Paraíba, Brazil". Memórias do Instituto Oswaldo Cruz. 97 (5): 747–50. doi:10.1590/S0074-02762002000500028. PMID 12219146.
  2. ↑ "White piedra (Concept Id: C0040249) - MedGen - NCBI". www.ncbi.nlm.nih.gov. Archived from the original on 6 April 2022. Retrieved 5 April 2022.
  3. 1 2 Hay, Roderick J. (2015). "Dermatophytosis (Ringworm) and Other Superficial Mycoses". Mandell, Douglas, and Bennett's Principles and Practice of Infectious Diseases. pp. 2985–2994.e1. doi:10.1016/B978-1-4557-4801-3.00268-X. ISBN 9781455748013.
  4. ↑ Kriplani, Dimple; Patel, Bharti; Viswanath, Vishalakshi; Miskeen, Autarkishen; Torsekar, Raghunandangovind (2011). "White piedra of scalp hair by Trichosporon inkin". Indian Journal of Dermatology, Venereology, and Leprology. 77 (5): 591–3. doi:10.4103/0378-6323.84065. PMID 21860159.
  5. ↑ Kiken DA, Sekaran A, Antaya RJ, Davis A, Imaeda S, Silverberg NB (December 2006). "White piedra in children". Journal of the American Academy of Dermatology. 55 (6): 956–61. doi:10.1016/j.jaad.2005.11.1033. PMID 17097391.
Classification


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