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Peripapillary hyperreflective ovoid mass-like structures (PHOMS): OCTA may reveal new findings
Enrico Borrelli1, Piero Barboni1,2, Marco Battista1
1Department of Ophthalmology, University Vita-Salute, IRCCS Ospedale San Raffaele, Milan, Italy.
Purpose:
Peripapillary hyperreflective ovoid mass-like structures (PHOMS) are novel and not well characterized findings occurring in several disorders of the optic nerve. The aim of this study is to present two cases of tilted disc syndrome (TDS) and one case with optic disc drusen undergoing a multimodal imaging approach.
Methods:
In this case series, a qualitative evaluation of the OCTA findings in regions with PHOMS was performed.
Results:
Structural OCT revealed the presence of PHOMS. OCTA identified the presence of a vascular complex within this hyperreflective structure.
Conclusions:
Assuming that PHOMS are thought to correspond to herniating nerve fibers or be secondary to axoplasmic stasis, this vascular complex may represent a displacement of the deeper vessels deputed at the irroration of the optic nerve into the retina or, alternatively, might be secondary to an increase in vascular endothelial growth factor (VEGF) levels and a subsequent development of neovessels.
