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A Metadata Extraction Approach for Clinical Case Reports to Enable Advanced Understanding of Biomedical Concepts
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[Ochronosis: A case report].

K Erraoui1, K Nassar1, S Janani1

  • 1Département de rhumatologie, CHU Ibn-Rochd, Casablanca, Maroc.

La Revue De Medecine Interne
|June 6, 2022
PubMed
Summary

Ochronosis, a rare genetic disorder, causes homogentisic acid buildup, leading to joint degeneration and pain. Early diagnosis through clinical and radiographic findings is crucial for managing this condition.

Area of Science:

  • Genetics
  • Biochemistry
  • Rheumatology

Background:

  • Ochronosis, or alkaptonuria, is a rare autosomal recessive metabolic disorder.
  • It results from a deficiency in homogentisic acid oxidase, leading to tissue deposition of homogentisic acid.

Observation:

  • A 69-year-old patient presented with chronic low back pain, lumbar stiffness, and limited knee motion.
  • Blueish discoloration of the ear pavilions and inner eye angles were noted.
  • Radiographs revealed extensive lumbar disc calcifications and osteophytic bridging.

Findings:

  • The patient's presentation and radiographic evidence met the diagnostic criteria for ochronosis.
  • Ochronosis is characterized by degenerative arthropathy, impacting functional ability.
Keywords:
AlcaptonurieAlkaptonuriaOchronoseOchronosis

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Implications:

  • This case highlights the importance of recognizing clinical and radiographic signs of ochronosis.
  • Molecular analysis and genetic research can aid in understanding and managing alkaptonuria.