Multimodal Imaging Analysis in a Case with Congenital Fovea-Involving Retinal Macrovessel and Excellent Visual Acuity

Vishal Shah,M Ashwin Reddy,Vasilios P Papastefanou

doi:10.1155/2017/4057615

Abstract

Purpose Congenital retinal macrovessels (CRM) represent rare aberrant vasculature of the retinal vessels that can supply or drain the macula. In this report, the optical coherence tomography angiography features of a congenital retinal macrovessel are discussed. Methods The history and examination findings are presented alongside swept-source OCT angiography with corresponding B scan and en face OCT imaging. Patients The case is a 12-year-old female patient with excellent best-corrected visual acuity in both eyes. Results Swept-source OCT angiography demonstrated considerable loss of the foveal avascular zone at the levels of the superficial and deep capillary plexus. Discussion In this case there was no detrimental effect on vision despite anatomical loss of the foveal avascular zone.

Highlights

Congenital retinal macrovessel was first described by Mauthner as “an aberrant retinal vessel” in 1869 [1]
In this report we describe OCT-A features in a case with congenital retinal macrovessel (CRM)
Swept-source optical coherence tomography angiography (SS-OCT-A) imaging of the right fundus (Triton, Topcon) (Figure 2) demonstrated the aberrant vessel encroaching into the foveal avascular zone (FAZ) but not passing through the center of the fovea

Summary

Introduction

Congenital retinal macrovessel was first described by Mauthner as “an aberrant retinal vessel” in 1869 [1]. Aberrant retinal vessels were noted to be rare and small in size with little or no branching and passing only to the macular region. Most were purported to arise directly from the short ciliary vessels, with occasional cases noted to communicate directly with the choroidal circulation. They were noted to arise at both the nasal and temporal disc margins [2]. Aberrant macrovessels crossing the fovea can cause visual impairment but this is not always the case [3]. In this report we describe OCT-A features in a case with congenital retinal macrovessel (CRM)

Case Presentation

Discussion