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Bilateral Congenital Prepapillary Retinal Arterial Loop.

Omer Karti1, Dilek Top Karti2, Ziya Ayhan3

  • 1Department of Ophthalmology, Bozyaka Training and Research Hospital, Izmir, Turkey.

Neuro-Ophthalmology (Aeolus Press)
|October 5, 2020
PubMed
Summary

Prepapillary vascular loops are rare retinal vascular abnormalities. This case highlights their potential misdiagnosis as papilledema, emphasizing careful fundus examination for accurate diagnosis.

Keywords:
Fluorescein angiographyoptical coherence tomographypapilloedemaprepapillary vascular loop

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Area of Science:

  • Ophthalmology
  • Vascular Biology
  • Medical Diagnostics

Background:

  • Prepapillary vascular loops are uncommon congenital retinal vascular anomalies.
  • While often benign, they can lead to complications like retinal artery occlusion and vitreous hemorrhage.
  • Differential diagnosis includes IRVAN syndrome and Wyburn Mason syndrome.

Purpose of the Study:

  • To report a case of bilateral prepapillary arterial loops.
  • To discuss the diagnostic challenges, particularly differentiating from papilledema.
  • To highlight the role of clinical examination and ancillary tests.

Main Methods:

  • Clinical case presentation.
  • Detailed fundus examination.
  • Review of differential diagnoses for optic disc abnormalities.

Main Results:

  • A 52-year-old male presented with bilateral prepapillary arterial loops.
  • The condition was initially suspected to be papilledema due to bilateral presentation near the optic disc.
  • Accurate diagnosis was achieved through careful clinical assessment.

Conclusions:

  • Prepapillary vascular loops require careful clinical evaluation to distinguish from other optic disc pathologies.
  • Bilateral presentation can mimic papilledema, necessitating thorough funduscopic examination.
  • Ancillary tests like OCT and fluorescein angiography can aid diagnosis.