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What is punctate keratosis?

What is punctate keratosis?

Punctate palmoplantar keratoderma (punctate PPK), or keratosis punctata, is a heterogeneous group of conditions characterized by small hyperkeratotic growths on the palms and soles. Many cases are inherited in an autosomal dominant fashion, although sporadic cases have also been reported.

Is Keratoderma cancerous?

Palmoplantar keratoderma (PPK) is a congenital or acquired disorder characterized by the abnormal thickening of the skin of the palms and soles. The thickening can present as a diffuse, focal or punctate pattern. It has been reported to be associated with internal malignancies such as lung and esophageal carcinomas.

How is Palmoplantar Keratoderma treated?


  1. Saltwater soaks.
  2. Emollients.
  3. Paring (cutting away layers of skin)
  4. Topical keratolytics (useful for people with limited keratoderma)
  5. Topical retinoids (this is often limited by skin irritation)
  6. Systemic retinoids (acitretin)
  7. Topical vitamin D ointment (calcipotriol)

Is Palmoplantar Keratoderma a disability?

Hypohidrosis-enamel hypoplasia-palmoplantar keratoderma-intellectual disability syndrome is a rare, genetic, syndromic intellectual disability disorder characterized by severe intellectual disability with significant speech and language impairment, hypohydrosis (often resulting in hyperthermia) with normal sweat gland …

What causes punctate keratosis?

In most families, punctate palmoplantar keratoderma type 1 is caused by a mutation in the AAGAB gene . The gene is thought to play an important role in skin integrity. When the gene is not working properly, the skin clumps together, forming the bumps on the skin that are characteristic of the condition.

How is keratosis Punctata treated?

Treatment includes keratolytics, topical salicylic acid, mechanical debridement, excision, and topical and systemic retinoids. Punctate keratosis of the palmar creases occurs most commonly in African American patients aged 15-40 years.

What does keratoderma look like?

What does palmoplantar keratoderma look like? In diffuse palmoplantar keratoderma, the skin on the palms and or soles appears thickened and may be hard, yellowish in colour. It affects the entire palm or sole. In focal palmoplantar keratoderma, usually only pressure or friction points are affected.

Is Keratoderma curable?

Inherited palmoplantar keratodermas are not curable but symptoms can be controlled. The aim of treatment is to reduce the thickness of the skin and to soften the skin.

What is diffuse Palmoplantar Keratoderma?

Diffuse hereditary palmoplantar keratodermas are the palmoplantar keratodermas that diffusely involve most of the palm and sole and are caused by a genetic abnormality. Several family members may be affected. Some types of syndromic keratoderma are associated with abnormalities of internal organs.

Which is the best description of keratosis puncta?

keratosis puncta´ta a hereditary hyperkeratosis in which the lesions are localized in multiple points on the palms and soles. seborrheic keratosis (keratosis seborrhe´ica) a benign, noninvasive tumor of epidermal origin, marked by numerous yellow or brown, sharply marginated, oval, raised lesions.

How is the genetic disorder keratosis follicularis determined?

Keratosis follicularis is a genetic disorder that occurs randomly as the result of a spontaneous genetic change (i.e., new mutation) or the mutation is inherited as an autosomal dominant trait. Genetic diseases are determined by the combination of genes for a particular trait that are on the chromosomes received from the father and the mother.

What are the symptoms of keratosis follicularis Darier?

Although in most people Darier disease is limited to the skin, additional symptoms have been reported in some cases including seizures, bipolar disorder, and learning disabilities. Keratosis follicularis may -be restricted to a band of skin on one side of the body (segmental or linear keratosis follicularis).

Who is the dermatologist for keratosis follicularis Nord?

NORD gratefully acknowledges Dr. Susan Burge, Honorary Consultant Dermatologist, Oxford University Hospitals NHS Trust, United Kingdom, for assistance in the preparation of this report. Keratosis follicularis, also known as Darier disease, is a rare, genetic skin disorder.