This anomaly may result in serious hemorrhage if a tympanotomy is performed or during middle ear manipulation if the otologist is unaware.

• 文献上曾有报告此症被误为肿瘤或合并中耳积水而予以活体切片或耳膜穿刺，因而造成出血不止，甚至导致听力丧失或半身瘫痪的严重后果。