Piezogenic papules

Painful fat herniation is foot pain caused by the herniation of fat through the thin fascial layers of the weight-bearing parts of the heel.[1] The herniation results in small bumps called piezogenic pedal papules[1] or piezogenic papules.[2] Though piezogenic papules are most commonly found on the heel, they can also be found on the wrist and palm.[3]

Piezogenic papules
Piezogenic papules on the heel of an individual with Ehlers–Danlos syndrome.
SpecialtyDermatology

Piezogenic papules are relatively common; in one population-based study, the prevalence was found to be 76%.[4][3] They occur more frequently in runners, triathletes, and individuals exposed to long periods of standing.[4] They are also common in individuals with connective tissue disorders, especially Ehlers–Danlos syndrome.[5][4] However, due to their preponderance in the general population, the presence of piezogenic papules alone does not automatically indicate the presence of Ehlers–Danlos syndrome. In most cases, piezogenic papules are of little clinical significance.

See also

References
  1. James, William D.; Berger, Timothy G.; et al. (2006). Andrews' Diseases of the Skin: clinical Dermatology. Saunders Elsevier. ISBN 978-0-7216-2921-6.
  2. Rapini, Ronald P.; Bolognia, Jean L.; Jorizzo, Joseph L. (2007). Dermatology: 2-Volume Set. St. Louis: Mosby. p. 1371. ISBN 978-1-4160-2999-1.
  3. "What Are These Papules?". The Dermatologist. HMP. Retrieved 2019-06-22.
  4. Rocha Bde O, Fernandes JD, Prates FV (2015). "Piezogenic Pedal Papules". An Bras Dermatol. 90 (6): 928–9. doi:10.1590/abd1806-4841.20154884. PMC 4689092. PMID 26734885.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  5. Malfait F, Francomano C, Byers P, Belmont J, Berglund B, Black J, Bloom L, Bowen JM, Brady AF (2017). "The 2017 international classification of the Ehlers–Danlos syndromes". Am J Med Genet C Semin Med Genet. 175 (1): 8–26. doi:10.1002/ajmg.c.31552. PMID 28306229.{{cite journal}}: CS1 maint: multiple names: authors list (link)


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