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The TACRD association is distinct from VACTERL association--a case report.

Anup Kumar Das1, Venkateswaran K Iyer

  • 1Department of Pathology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi.

Indian Journal of Pathology & Microbiology
|October 9, 2004
PubMed
Summary
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Tracheal agenesis, a rare congenital defect, presents with multiple complex internal malformations. This case highlights the distinct TACRD association, differentiating it from VACTERL syndrome.

Area of Science:

  • Medical Genetics
  • Pediatric Pathology
  • Congenital Malformations

Background:

  • Tracheal agenesis is an exceptionally rare congenital anomaly.
  • It involves the incomplete development of the trachea.
  • Associated anomalies often present a diagnostic challenge.

Observation:

  • A neonate presented with tracheal agenesis and a spectrum of severe anomalies.
  • These included cardiac (ventricular septal defect), gastrointestinal (gastric hypoplasia, duodenal atresia, Meckel's diverticulum), pulmonary (lung isomerism), splenic (hypoplastic spleen with polysplenia), and renal (fused crossed ectopia) malformations.
  • The constellation of defects aligns with the newly proposed Tracheal Agenesis, Cardiac, Renal, and Duodenal (TACRD) association.

Findings:

  • The presented case exemplifies the TACRD association, characterized by tracheal agenesis and significant internal malformations.

Related Experiment Videos

  • This condition is distinguished from the VACTERL association, which typically involves tracheo-esophageal fistula and often includes skeletal abnormalities.
  • The TACRD association presents complex internal anomalies without the external skeletal findings seen in VACTERL.

    • Implications:

    • Accurate identification of the TACRD association is crucial for understanding its unique pathology.
    • Pathologists performing neonatal autopsies must be aware of this rare condition for correct diagnosis.
    • Distinguishing TACRD from VACTERL is essential for appropriate clinical management and genetic counseling.