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Patient characteristics and prevalence of associated persistent stapedial artery findings
Case Side Associated Anomalies CHL Duplicated FNC Fr Spn Coch Prom Vessel Large CTC Large ITC Stapes Obturator Artery Surgical Confirmation
1 L None + + − + + − + −
2 L Ipsilateral congenital cholesteatoma and dysplastic anterior stapedial crus + − − + + − + +
3 L None N/A + − + − + + −
4 L None − − − + − + + −
5 R Ipsilateral congenital aerodigestive venolymphatic malformation and dysplastic stapes + − − + + − −^{^c} +
6 R Chromosome 3q duplication or trisomy N/A + − + + − + −
7 R None − + − + − + + −
8 L None − − − + + − + −
9^{^a} R None + + − + + − −^{^d} +
10^{^a} L None +^{^b} + − + + − + −
↵a #9 and #10: bilateral PSA; same patient.
↵b #10 remote middle ear surgery, not otherwise specified.
↵c #5 PSA anterior to the dysplastic crus.
↵d #9 granulation tissue obscured artery.
Note:—Findings are marked as either present (+) or absent (−) in each patient. Coch Prom indicates cochlear promontory; FNC = facial nerve canal; Fr Spn = foramen spinosum; N/A = not applicable.