Dinosaur Tail Appendix in Trisomy 13

Area of Science:

• Medical Genetics
• Developmental Biology
• Pathology

Background:

• Trisomy 13 (Patau syndrome) is a chromosomal disorder associated with multiple congenital anomalies.
• The dinosaur tail appendix is a rare and less recognized malformation.
• Understanding associated anomalies is crucial for comprehensive diagnosis.

Observation:

• This report details a case of dinosaur tail appendix identified during autopsy.
• The case involved a newborn female diagnosed with trisomy 13.
• The appendix presented as a distinct caudal appendage.

Findings:

• The dinosaur tail appendix was confirmed in a neonate with trisomy 13.
• The frequency of this appendix in the general population ranges from 0.014% to 3.7%.
• This finding reinforces the association between trisomy 13 and specific appendiceal malformations.

Implications:

• The dinosaur tail appendix should be considered in the complete morphological diagnosis of trisomy 13.
• Recognition of this anomaly can aid in genetic counseling and prenatal diagnosis.
• Further research may elucidate the embryological basis of this association.