Proliferating trichilemmal cyst

From WikiMD's Wellness Encyclopedia

(Redirected from Proliferating pilar tumor)

Proliferating trichilemmal cyst
Synonyms Proliferating pilar cyst [1]
Pronounce
Field
Symptoms
Complications
Onset
Duration
Types
Causes
Risks
Diagnosis
Differential diagnosis
Prevention
Treatment
Medication
Prognosis
Frequency
Deaths



Alternate names[edit | edit source]

Proliferating pilar cyst

Definition[edit | edit source]

Proliferating trichilemmal tumor (PTT) is a benign tumor originating from the hair follicle. Although it is a benign tumor, PTT may be locally aggressive and in very rare cases the tumor may become malignant.

Signs and symptoms[edit | edit source]

  • In most cases there is only one lesion and occur in elderly women.
  • The tumor is not painful but sometimes they may grow very large and pressure and damage the skin around it resulting in wounds and foul-smelling discharge. About 90% of the cases are on the scalp, but they have also been found on the forehead, nose, back, chest, abdomen, buttocks, elbow, wrist and genitalia.

For most diseases, symptoms will vary from person to person. People with the same disease may not have all the symptoms listed. 80%-99% of people have these symptoms

  • Epidermoid cyst(Skin cyst)
  • Skin ulcer(Open skin sore)

30%-79% of people have these symptoms

  • Sparse scalp hair(Reduced/lack of hair on scalp)

Diagnosis[edit | edit source]

  • The diagnosis of MPTC is essentially based on histological features.
  • The presence of a high mitotic rate, atypical mitosis, severe nuclear pleomorphism, and tumor invasion of the adjacent tissues are the essential histological features of malignancy in these unusual tumors.

Treatment[edit | edit source]

Treatment is with surgery removing the lesion.

Prognosis[edit | edit source]

Prognosis is good in most cases but the patient should be followed closely after surgery.

External links[edit | edit source]

Classification
  • ICD-10: L72.1
External resources
  • Orphanet: 492


  1. "Proliferating trichilemmal cyst | Genetic and Rare Diseases Information Center (GARD) – an NCATS Program". rarediseases.info.nih.gov. Retrieved 16 May 2019.
WikiMD
Navigation: Wellness - Encyclopedia - Health topics - Disease Index‏‎ - Drugs - World Directory - Gray's Anatomy - Keto diet - Recipes

Search WikiMD

Ad.Tired of being Overweight? Try W8MD's physician weight loss program.
Semaglutide (Ozempic / Wegovy and Tirzepatide (Mounjaro / Zepbound) available.
Advertise on WikiMD

WikiMD's Wellness Encyclopedia

Let Food Be Thy Medicine
Medicine Thy Food - Hippocrates

Medical Disclaimer: WikiMD is not a substitute for professional medical advice. The information on WikiMD is provided as an information resource only, may be incorrect, outdated or misleading, and is not to be used or relied on for any diagnostic or treatment purposes. Please consult your health care provider before making any healthcare decisions or for guidance about a specific medical condition. WikiMD expressly disclaims responsibility, and shall have no liability, for any damages, loss, injury, or liability whatsoever suffered as a result of your reliance on the information contained in this site. By visiting this site you agree to the foregoing terms and conditions, which may from time to time be changed or supplemented by WikiMD. If you do not agree to the foregoing terms and conditions, you should not enter or use this site. See full disclaimer.
Credits:Most images are courtesy of Wikimedia commons, and templates Wikipedia, licensed under CC BY SA or similar.

Contributors: Deepika vegiraju