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 | − | − | − | + | + | − | + | − |
| 9a | R | None | + | + | − | + | + | − | −d | + |
| 10a | 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.