Resumen

La cola vestigial o también llamada cola verdadera humana, pseudocola, apéndice lumbosacro, es una patología infrecuente, asociada a la inadecuada formación en el tubo neural y a un disrafismo oculto. Reportamos un caso de recién nacido varón a término, nacionalidad dominicana, parto eutócico ingresado en el área de neonatología que presenta cola vestigial localizada en la línea media en la región sacra, madre controlada durante su embarazo, sin antecedentes prenatales. Al identificar en el examen físico apéndice lumbosacra se inicia un estudio multidisciplinar por parte de neonatología y cirugía pediátrica para descartar defecto en el tubo neural y corroborar el diagnóstico antes mencionado.

The vestigial tail, also known as the human true tail, pseudo tail, or lumbosacral appendix, is a rare condition associated with abnormal formation of the neural tube and hidden dysraphism. We report the case of a full-term male newborn of Dominican nationality, delivered vaginally, who was admitted to the neonatal unit. The newborn presented a vestigial tail located along the midline in the sacral region. The mother had regular prenatal care with no notable complications. Upon identification of the lumbosacral appendix during the physical examination, a multidisciplinary approach was initiated involving neonatology and pediatric surgery to rule out a neural tube defect and confirm the diagnosis.