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Published on: October 21, 2015
Chondrodysplasia punctata: a clinical diagnostic and radiological review
Melita D Irving1, Lyn S Chitty, Sahar Mansour
1Department of Clinical Genetics, Guy's and St Thomas' Hospitals Foundation Trust, London, UK. Melita.Irving@gstt.nhs.uk
Insights
Chondrodysplasia punctata (CDP) encompasses diverse disorders, including metabolic, embryopathic, and chromosomal conditions. This review updates CDP classifications based on new etiological insights, clinical findings, and diagnostic guidelines.
Area of Science:
- Medical Genetics
- Biochemistry
- Developmental Biology
Background:
- Chondrodysplasia punctata (CDP) presents as a heterogeneous group of disorders.
- Previous classifications lacked a unified etiological basis.
- Recent advances illuminate the molecular and biochemical underpinnings of CDP syndromes.
Purpose of the Study:
- To provide an updated classification of Chondrodysplasia punctata.
- To review the etiological factors, clinical manifestations, and radiographic features of CDP.
- To present an investigative guideline for diagnosing new CDP cases.
Main Methods:
- Literature review of recent biochemical and molecular studies on CDP.
- Synthesis of existing data on clinical and radiographic findings.
- Development of a diagnostic algorithm based on current knowledge.
Main Results:
- A new etiological classification of CDP syndromes has emerged.
- Detailed overview of various CDP types, their causes, and clinical presentations.
- A practical guideline for diagnostic workup is proposed.
Conclusions:
- Understanding the etiological basis has refined CDP classification.
- Integrated clinical, radiographic, and molecular data aid diagnosis.
- The updated framework facilitates accurate diagnosis and management of CDP.
Abstract:
Chondrodysplasia punctata (CDP) is associated with a number of disorders, including inborn errors of metabolism, involving peroxisomal and cholesterol pathways, embryopathy and chromosomal abnormalities. Several classification systems of the different types of CDP have been suggested earlier. More recently, the biochemical and molecular basis of a number of CDP syndromes has recently been elucidated and a new aetiological classification has emerged. Here we provide an updated version with an overview of the different types of CDP, a discussion of the aetiology and a description of the clinical and radiographic findings. An investigative guideline to help determine the exact diagnosis in new cases is also presented.
