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Pterygium inversum unguis

FieldValue
synonymPterygium inversus unguis, and Ventral pterygium
specialtyDermatology

Pterygium inversum unguis or ventral pterygium is characterized by the adherence of the distal portion of the nailbed to the ventral surface of the nail plate. The condition may be present at birth or acquired, and may cause pain with manipulation of small objects, typing, and close manicuring of the nail. secondary due to connective tissue disorders. Pterygium inversum unguis is often asymptomatic.

Signs and symptoms

Pterygium inversum unguis is often asymptomatic. The most commonly reported symptom amongst those who do experience symptoms is bleeding or pain after clipping the affected nails.

Causes

The cause of pterygium inversum unguis is unknown. Congenital pterygium inversum unguis is assumed to be brought on by an early abnormality in the fetal ridge and groove formation. Idiopathic forms of pterygium inversum unguis may result from the nail bed's distal expansion, which often aids in the creation of the nail plate. Secondary pterygium inversum unguis is thought to be caused by abnormal distal circulation.

Diagnosis

A prominent hyperkeratotic stratum corneum with normal nail bed vasculature is seen upon histological analysis. It extends and is firmly linked to the underside of the nail plate.

Treatment

The best way to address pterygium inversum unguis is unclear; many approaches, such as topical steroids, keratolytics, and electrocautery-assisted surgical excision, have been shown to be ineffective. Treating the underlying cause of pterygium inversum unguis is the best course of action.

Epidemiology

As of 2014, only 37 cases have been reported in literature. Pterygium inversum unguis most commonly affects women ages 20-70.

References

References

  1. Rapini, Ronald P.. (2007). "Dermatology: 2-Volume Set". Mosby.
  2. Freedberg, et al. (2003). ''Fitzpatrick's Dermatology in General Medicine''. (6th ed.). McGraw-Hill. {{ISBN. 0-07-138076-0.
  3. James, William; Berger, Timothy; Elston, Dirk (2005). ''Andrews' Diseases of the Skin: Clinical Dermatology''. (10th ed.). Saunders. {{ISBN. 0-7216-2921-0.
  4. Caputo, Ruggero. (1993-10-01). "Pterygium Inversum Unguis: Report of 19 Cases and Review of the Literature". Archives of Dermatology.
  5. Caputo, Ruggero. (1973-12-01). "Pterygium Inversum Unguis". Archives of Dermatology.
  6. Patterson, James W.. (1977-10-01). "Pterygium Inversum Unguis-like Changes in Scleroderma: Report of Four Cases". Archives of Dermatology.
  7. Paley, Kristina. (2008). "Pterygium inversum unguis secondary to acrylate allergy". Elsevier BV.
  8. Baek, Ji Hye. (2014). "A Case of Acquired Idiopathic Pterygium Inversum Unguis". Korean Dermatological Association and The Korean Society for Investigative Dermatology.
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