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True thyroglossal fistula

J Madana1, Deeke Yolmo, Sunil Kumar Saxena

  • 1Department of Otorhinolaryngology, Jawaharlal Institute of Postgraduate Medical Education and Research, Pondicherry, India. maddyy@gmail.com

The Laryngoscope
|September 1, 2009
PubMed

Insights

Thyroglossal duct anomalies are common congenital neck masses. This case presents a rare true thyroglossal fistula, an abnormal connection from the neck to the foramen caecum.

Area of Science:

  • Embryology
  • Pediatric Surgery
  • Head and Neck Surgery

Background:

  • Thyroglossal duct anomalies are the most frequent congenital cervical masses, accounting for 70% of such conditions.
  • These anomalies are prevalent in children under 5, with 60% diagnosed before age 20.
  • They originate from embryonic remnants during thyroid tissue migration.

Observation:

  • A thyroglossal duct cyst can rupture, leading to a draining sinus, often misidentified as a thyroglossal fistula.
  • True thyroglossal fistulas, with direct communication to the foramen caecum, are exceptionally rare.

Findings:

  • This report details a rare case of a true thyroglossal fistula.
  • The patient was a 21-year-old male presenting with a fistulous tract connecting the neck skin to the foramen caecum.

Implications:

  • Accurate diagnosis of thyroglossal duct anomalies is crucial for appropriate management.
  • Understanding the embryological basis aids in differentiating cysts from rare fistulas.
  • This case highlights the importance of recognizing and correctly diagnosing rare congenital anomalies.

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