Are PHOMS (Peri papillary hyperreflective ovoid mass-like structures ) with an elevated optic disc still a diagnosis dilemma?

医学 卵球形 眼科 佩里 解剖 几何学 数学 内科学
作者
Rim Maalej,Mounir Bouassida,Hugo Picard,Catherine Vignal,Rabih Hage
出处
期刊:Ophthalmology [Elsevier]
标识
DOI:10.1016/j.ophtha.2024.09.007
摘要

To identify clinical characteristics that would help make or rule out the diagnosis of Idiopathic intracranial hypertension (IIH) in patients referred for papilledema (PE) with peripapillary hyperreflective ovoid mass-like structures (PHOMS) DESIGN: A retrospective cohort study SUBJECTS: All patient referred for PE excluding PE with Frisén grade ≥ 3, optic neuritis, ischemic optic neuropathy, compressive optic neuropathy. Patients were divided into 2 groups: Group1= isolated PHOMS Group2= PHOMS associated with IIH METHODS: We analyzed the location of PHOMS based on OCT-EDI and calculated their volume MAIN OUTCOME MEASURES: P RNFL,GCC, PHOMS' volume RESULTS: 154 patients (308 eyes) were included, mean age was 29 with female predominance (78%). PHOMS were associated to these etiologies : IIH(38.3%) isolated (35.7%), posterior uveitis (11%),optic disc drusen (ODD)(10%), and tilted optic disc (5%). An MRI was obtained in 83.1% of cases. More than half of the MRIs were interpreted as consistent with IIH. However, only 39.7% of these patients had confirmed IIH with 44.5% of sensitivity and 55.5% of sensibility. PHOMS were overrepresented in the nasal region (95.5%).The location of PHOMS in the superior and/ or inferior quadrant was significantly associated to IIH or optic dusc drusen, while their presence in the temporal or nasal sector was strongly associated to isolated lesions. PHOMS mean and median volume were 1.66 μm3 and 1.50 μm3 respectively. There was a significant difference in PHOMS volume with higher volume in IIH patients (p=0.0037). Follow up of these patients at 3 and 6 months demonstrated no significant changes in visual function, as per visual field mean deviation, and visual acuity measurements as well as Ganglion cell layer (GCL).Mean pRNFL, showed a decrease of -4.225 μm at 3 months and of -6.489 μm at 6 months, when compared to initial measurement independing of the etiology.

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