ochronosis

ochronosis /ochro·no·sis/ (o″kron-o´sis) deposition of dark pigment in the body tissues, usually secondary to alkaptonuria, characterized by urine that darkens on standing and dusky discoloration of the sclerae and ears.ochronot´ic

o·chro·no·sis (

-n

A condition observed in certain patients with alkaptonuria and marked by pigmentation of cartilage and sometimes of other tissues.

ochro·notic (-n

k) adj.

ochronosis

People with this rare hereditary condition tend to develop arthritis in adulthood.

Mentioned in: Pseudogout

ochronosis

[ō′krənō′sis]

Etymology: Gk, ochros, yellow, osis

an inherited error of protein metabolism characterized by an accumulation of homogentisic acid, resulting in degenerative arthritis and brown-black pigment deposited in connective tissue and cartilage. It is often caused by alkaptonuria or poisoning with phenol. Bluish macules may be noted on the sclera, fingers, ears, nose, genitalia, buccal mucosa, and axillae. Urine color may be dark. See also alkaptonuria.

ochronosis [ok″ro-no´sis]

a peculiar discoloration of body tissues caused by deposit of alkapton bodies as the result of a metabolic disorder.

ocular ochronosis brown or gray discoloration of the sclera, sometimes involving also the conjunctivae and eyelids.

ochronosis (ōˈ·kr

·nōˑ·sis),

n condition marked by accumulation of black-brown pigment in cartilage, joint capsules, and other connective tissues as a result of alkaptonuria, which is a metabolic disorder resulting in accumulation of homogentisic acid. See also alkaptonuria.

ochronosis

a yellow, brown or chocolate discoloration of cartilage, tendon sheaths and ligaments but not bone. Caused by deposit of alkapton bodies as the result of a metabolic disorder. Affected parts must be condemned as not suitable for human consumption.

ocular ochronosis

brown or gray discoloration of the sclera, sometimes involving also the conjunctivae and eyelids.

ochronosis

Alkaptonuria, see there

Mentioned in	?		References in periodicals archive	?		Medical browser	?		Full browser	?
alkaptonuria Coffin Lid Crystal pseudogout	Chronic adverse events include exogenous ochronosis, especially in women of African descent, nail discoloration, and permanent leukoderma. Thinking About Skin Lightning? Know the Ingredients of Your Skin ... by Mark Etinger / Business community Some creams have been developed and marketed, but most of those contain ineffective herbal ingredients or Hydroquinone, a chemical thought to be carcinogenic and banned in some European and Asian countries and a precursor to Exogenous Ochronosis, a side effect of Hydroquinone that causes the skin to noticeably darken with prolonged use. Nuviderm Does It Work by Johnathan Scott / Health care industry community Among the possible causes of black thyroid are minocycline-induced pigmentation, hemochromatosis, ochronosis, mucoviscidosis, ceroid storage disease, bruising, and hemorrhage. Black thyroid by Tahan, Steven R. / Ear, Nose and Throat Journal	occupational performance tasks occupational risk Occupational Safety and Health Administration occupational socialization occupational stress occupational therapist occupational therapy occupational therapy aide occupational therapy assistant occurrence Occurrence Policy OCD ocean-sounding breath ocelli ocelot Ochlophobia Ochoa Ochophobia Ochotona ochratoxicosis ochratoxin ochratoxin A ochre mutation Ochroconis galloparvum ochrometer ochronosis Ochsner forceps Ocicat Ocimum basilicum Ocimum sanctum OCN ocontic pressure OCP OCT oct(a)- oct- octa- octachloronaphthalene octacosanol octan octanoic acid breath test octaploid octatropine octavalent octave octigravida octinoxate octisalate octo- octocrylene Octodon degus	ochreish ochreish Ochreous Ochreous Ochrept Ochres Ochres Ochrey Ochrid Ochrida Ochro Ochro Ochrobium Ochrocarpos Ochroconis galloparvum ochroid ochroid Ochrolechia Ochroleucous Ochroleucous Ochroma Ochroma Ochroma Ochroma lagopus Ochroma lagopus Ochroma lagopus Ochroma pyramidale Ochroma pyramidale Ochroma pyramidale ochrometer ochronosis ochrous ochrous OCHRP OCHRS OCHRT Ochry Ochry Ochs Ochs Ochs, Adolph S. Ochs, Adolph Simon Ochs, Baron Ochs, Peter Ochs, Phil OCHSA Ochsner forceps Ochsner Health System Ochsner, Alton Ochteridae Ochteroidea OCHTTF Ochu Ochymy OCI ÖCI OCI-C1 OCI-C2

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alkaptonuria
Coffin Lid Crystal
pseudogout

Chronic adverse events include exogenous ochronosis, especially in women of African descent, nail discoloration, and permanent leukoderma.

Thinking About Skin Lightning? Know the Ingredients of Your Skin ... by Mark Etinger / Business community

Some creams have been developed and marketed, but most of those contain ineffective herbal ingredients or Hydroquinone, a chemical thought to be carcinogenic and banned in some European and Asian countries and a precursor to Exogenous Ochronosis, a side effect of Hydroquinone that causes the skin to noticeably darken with prolonged use.

Nuviderm Does It Work by Johnathan Scott / Health care industry community

Among the possible causes of black thyroid are minocycline-induced pigmentation, hemochromatosis, ochronosis, mucoviscidosis, ceroid storage disease, bruising, and hemorrhage.

Black thyroid by Tahan, Steven R. / Ear, Nose and Throat Journal

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ochronosis