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A persistent pharyngohyostapedial artery: embryologic implications.

V Lefournier1, A Vasdev, P Bessou

  • 1Department of Neuroradiology, Hôpital A Michallon, Grenoble, France.

AJNR. American Journal of Neuroradiology
|March 27, 1999
PubMed
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A persistent pharyngohyostapedial artery, an embryonic remnant, was identified in a child with ear bleeding. This rare vascular anomaly can mimic internal carotid artery duplication.

Area of Science:

  • Vascular anatomy
  • Embryology
  • Pediatric radiology

Background:

  • Otorrhagia in children necessitates thorough investigation of potential vascular causes.
  • Understanding rare anatomical variations is crucial for accurate diagnosis.

Observation:

  • A 3-year-old child presented with otorrhagia.
  • Computed tomography (CT) scans revealed an unusual vascular structure.
  • Angiography confirmed the presence of this anomalous vessel.

Findings:

  • The identified vessel was a persistent pharyngohyostapedial artery.
  • This artery is an embryonic remnant.
  • Its presence alongside the normal internal carotid artery can create the appearance of internal carotid artery duplication.

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Implications:

  • This finding provides a potential explanation for perceived internal carotid artery duplication in pediatric cases.
  • Recognizing this anomaly is important for avoiding misdiagnosis and guiding appropriate clinical management.
  • Further research into the prevalence and clinical significance of persistent pharyngohyostapedial artery is warranted.