Stucco keratosis

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Classification according to ICD-10
L82 Seborrheic keratosis
ICD-10 online (WHO version 2019)

The stucco keratosis , from Italian stucco , is a special form of seborrheic keratosis . It is a multiple, flat, unpigmented, small speckled seborrheic keratosis that occurs preferentially in areas of the extremities exposed to light, such as the back of the hand, forearms, lower legs and back of the foot.

Synonyms are: stucco keratosis; Keratoelastoidosis Verrucosa; Stuccokeratosis; Verrucae dorsi manus et pedis

The first description comes from Paul Gerson Unna from 1894 (quoted from)

distribution

The incidence is estimated to be around 10% in the elderly. Elderly people (more likely men) with particularly dry skin are particularly affected.

root cause

Of the disease are at least partially mutations in PIK3CA - gene on chromosome 3 locus q26.32 based encoding 3-kinase to phosphatidylinositol.

Differential diagnosis

The following are to be distinguished:

treatment

Their treatment corresponds to the treatment of conventional seborrheic keratoses.

literature

  • Y. Teraki, Y. Sato, S. Izaki: Successful treatment of stucco keratosis with maxacalcitol. In: The British journal of dermatology. Vol. 155, No. 5, November 2006, pp. 1085-1086, doi : 10.1111 / j.1365-2133.2006.07488.x , PMID 17034554 .
  • Ingrid Moll (Ed.): Dual series of dermatology. Founded by Ernst G. Jung. 6th edition. Thieme, Stuttgart 2005, ISBN 3-13-126686-4 .
  • E. Kocsard, JJ Carter: The papillomatous keratoses. The nature and differential diagnosis of stucco keratosis. In: The Australasian journal of dermatology. Vol. 12, No. 2, August 1971, pp. 80-88, PMID 5118097 .

Web links

Individual evidence

  1. ↑ a b c Encyclopedia Dermatology
  2. ↑ a b emedicine, medscape
  3. ↑ PG Unna: The histopathology of skin diseases. Hirschwald Verlag, Berlin, 1994
  4. ^ Stucco keratosis.  In: Online Mendelian Inheritance in Man . (English)
  5. ↑ C. Hafner, M. Landthaler, T. Mentzel, T. Vogt: FGFR3 and PIK3CA mutations in stucco keratosis and dermatosis papulosa nigra. In: The British journal of dermatology. Vol. 162, No. 3, March 2010, pp. 508-512, doi : 10.1111 / j.1365-2133.2009.09488.x , PMID 19845664 .