ichthyosis

ichthyotic /ik'thee ot"ik/, adj.
/ik'thee oh"sis/, n. Pathol.
a hereditary skin disease in which the epidermis continuously flakes off in large scales or plates.
[1805-15; < NL; see ICHTHY-, -OSIS]

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also called  fish-skin disease , or  xeroderma 

      a hereditary condition involving dryness and scaliness of the skin brought about by excessive growth of the horny outermost covering of the skin. The dead cells of this horny layer do not slough off at the normal rate but tend instead to adhere to the skin surface to form scales; horny plaques and papules may also be present in more severe cases. The skin in this condition is intolerant of even the mildest irritants and is prone to severe chapping and fissuring in cold weather. Ichthyosis is usually not detected at birth, but, as the child grows older, dry branny scaling will appear, being most marked on the extensor surfaces of the extremities. Ichthyosis may sometimes be associated with a deficiency of the sweat glands and, less frequently, with irregularities in the growth of hair, teeth, and nails. In its mild and simplest form, ichthyosis is probably the most common of the hereditary skin disturbances.

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Universalium. 2010.

Look at other dictionaries:

  • Ichthyosis — Classification and external resources Ichthyosis is recognized by rough, scaly skin exhibited by patients. ICD 10 Q …   Wikipedia

  • Ichthyosis — Ich thy*o sis, n. [NL., fr. Gr. ichqy s fish.] (Med.) A disease in which the skin is thick, rough, and scaly; called also {fishskin}. {Ich thy*ot ic}, a. [1913 Webster] …   The Collaborative International Dictionary of English

  • ichthyosis — ichthyosis. См. ихтиозы. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • Ichthyōsis — (v. gr.), Fischschuppenausschlag, Hautkrankheit, wobei die Haut eine fischschuppen , bisweilen schlangenhautähnliche Entartung in Folge einer sich erzeugenden Hornsubstanz zeigt, deren höchster Grad der Stachelschweinaussatz (s.… …   Pierer's Universal-Lexikon

  • Ichthyōsis — (griech.), s. Fischschuppenkrankheit …   Meyers Großes Konversations-Lexikon

  • Ichthyosis — Ichthyōsis (grch.), Fischschuppenkrankheit, ererbte Hautkrankheit, bei der die Oberhaut mit Schüppchen und Blättchen oder bei stärkern Graden (Hystrizismus) mit dickern Hornplatten und hornigen Warzen (Krusten oder Stachelschweinmenschen) besetzt …   Kleines Konversations-Lexikon

  • Ichthyosis — Ichthyosis, griech., Fischschuppenausschlag, eine Hautkrankheit …   Herders Conversations-Lexikon

  • ichthyosis — (n.) 1815, Modern Latin, from Gk. ikhthys fish + OSIS (Cf. osis) …   Etymology dictionary

  • ichthyosis — [ik΄thē ō′sis] n. [ModL: see ICHTHY(O) & OSIS] a congenital, hereditary skin disease characterized by roughening and thickening of the horny layer of the skin, producing dryness and scaling ichthyotic [ik΄thēät′ik] adj …   English World dictionary

  • Ichthyosis — Ichthyose (altgriechisch ιχθύς, ichthýs, Fisch), synonym die international verwendete Bezeichnung Ichthyosis, ist ein Sammelbegriff für Verhornungsstörungen der Haut, die meist durch Gendefekte verursacht werden. Ichthyosen sind nicht ansteckend …   Deutsch Wikipedia

  • Ichthyosis — Dry, rectangular scales on the skin. Like fish scales. From the Greek ichthys meaning fish. Ichthyosis is not one but rather a group of skin disorders characterized by noninflammatory scaling of the skin. Many different metaphors have been used… …   Medical dictionary

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