后鼻孔息肉是一种特殊类型的鼻息肉,乃息肉样变的上颌窦粘膜经窦口或副孔坠入鼻腔而成,较筛窦息肉明显少见,文献记载约占全部鼻息肉患者的3～6%(成人)至33%(儿童),故多见于儿童。作者统计在162名伴鼻息肉的慢性筛、颌窦炎患儿(4～14岁)中,49例(30.5%)有后鼻孔息肉,大多单侧,仅1例11岁患儿有双后鼻孔息肉,1例有二息肉,28例伴单侧鼻窦炎,病程在2年以内,21例伴有病程3年以上的双侧鼻窦炎。诊断靠症状、前及后鼻镜检查、鼻咽指检、上颌窦穿刺和造影、鼻咽部侧位 X 线片及碘油造影片。因多系小儿,咽反射敏感和腭扁桃体肥大故不易行后鼻孔镜检,常将后鼻孔息肉误诊为腺样体增殖、下甲后端肥大、囊肿、乳头状瘤、鼻 Posterior nostril polyp is a special type of nasal polyps, but polypoid sinusoidal mucosa or sinus change into the nasal cavity through the inferior orifice, compared with ethmoid polyps is significantly rare, the literature records of all patients with nasal polyps about 3 ~ 6% (adults) to 33% (children), it is more common in children. The authors statistics of 162 chronic nasal polyps with chronic sieve, children with sinusitis (4 to 14 years old), 49 cases (30.5%) have nostril polyps, mostly unilateral, only 11 cases of children with a double after Nostril polyps, one case had two polyps, 28 patients with unilateral sinusitis, course of disease within 2 years, 21 cases with bilateral disease of more than 3 years of sinusitis. Diagnosis by symptoms, before and after the endoscopy, nasopharyngeal finger examination, maxillary sinus puncture and angiography, nasopharyngeal X-ray and lipiodol film. Due to the multi-line pediatric, pharyngeal reflex sensitivity and palatal tonsil hypertrophy is not easy to post nostril microscopy, often after the misdiagnosis of the nostril polyp adenoid proliferation, the inferior hindgut hypertrophy, cysts, papillomas, nasal