Results 91 to 100 of about 2,140 (193)

Exogenous ochronosis: the failure of depigmenting creams [PDF]

open access: yes, 2019
Exogenous ochronosis (EO) is an entity that manifests as black-bluish or grayish-brown cutaneous hyperpigmentation, which is a consequence of the deposition of ochronotic pigment with characteristic banana-like morphology between the collagen fibers of ...
Sánchez-Martínez, Eva María   +12 more
core   +1 more source

An unusual cause of chronic low back pain: ochronosis

open access: yesThe Pan African Medical Journal, 2017
A 45-year-old man presented with low back pain evolving since 8 years associated sometimes with a radicular radiation. The clinical examination found a patient in good general condition, a loss of the lumbar lordosis, an exaggeration of the dorsal ...
Zeineb Alaya, Anis Mzabi
doaj   +1 more source

Actinic granuloma-like change in exogenous ochronosis: Case report

open access: yes, 1990
Exogenous ochronosis is caused by the longterm application of skin-lightening creams containing hydroquinone. This irreversible disfiguring cosmetic problem assumes epidemic proportions in South African blacks. Mild ochronosis is characterized clinically
Mulligan R.P., Jordaan H.F.
core   +1 more source

Case Report: Ochronotic arthropathy mimicking spondyloarthritis: a case-based review of diagnostic pitfalls and a novel likely pathogenic HGD variant

open access: yesFrontiers in Genetics
BackgroundAlkaptonuria (AKU) is a rare autosomal recessive metabolic disorder caused by homogentisate 1,2-dioxygenase (HGD) deficiency, leading to pigment deposition and progressive ochronotic arthropathy (OchA), which may mimic chronic inflammatory or ...
Zhicheng Liu   +9 more
doaj   +1 more source

Perioperative management of patient with alkaptonuria and associated multiple comorbidities

open access: yesJournal of Anaesthesiology Clinical Pharmacology, 2011
Alkaptonuria is a rare inherited genetic disorder of tyrosine metabolism characterized by a triad of homogentisic aciduria, ochronosis, and arthritis. The most common clinical manifestations of ochronosis involve the musculoskeletal, respiratory, airway,
Ravindra Pandey   +4 more
doaj   +1 more source

Ocular Ochronosis [PDF]

open access: yesDeutsches Ärzteblatt international, 2018
Jens Martin, Rohrbach, Daniel, Röck
openaire   +2 more sources

Ankylosis of the spine in a case with ochronosis

open access: yes, 2003
A thirty-nine-year-old man presented with a complaint of low back pain with a history of 20 years. Cervical and thoracolumbar radiographs showed wide calcification areas and ankylosis in the intervertebral discs.

core  

The dark side of cartilage: ochronosis unmasked during femoral neck fracture surgery [PDF]

open access: yes
Alkaptonuria is a rare autosomal recessive disorder caused by a deficiency in homogentisic acid oxidase, leading to the accumulation of homogentisic acid in connective tissues.
Somani , Rohit   +5 more
core   +1 more source

Ochronosis in differential diagnosis of patients with chronic backache: a review of the literature

open access: yes, 2007
A 50-year-old man presented with a complaint of low-back pain and widespread joint pain for the previous 20 years. Conventional radiography revealed wide areas of calcification in the intervertebral discs and degenerative changes in the peripheral joints.
Serdaroglu, Muenevver   +4 more
core   +1 more source

Radiologic features of lumbar spine in ochronosis in late stages

open access: yes
Ochronosis is a rare hereditary disorder of tyrosine metabolism. Severe degenerative arthritis and spondylosis occur in the later stages of this disease. Radiologic examinations may reveal changes considered almost pathognomonic for ochronosis.
Pabusçu, Y   +4 more
core  

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