脉络丛乳头状瘤约占全部颅内原发肿瘤的0.5％(而且,绝大部分发生于脑室系统)。Revilla复查了Johns Hopkins医院(1926-1945)的小脑脑桥角肿瘤共205例,但无1例脉络丛乳头状瘤。因此,小脑脑桥角原发性脉络丛乳头状瘤是非常罕见的。在文献中,我们确能查到的仅15例,其第1例是Cushing(1917)介绍的一个22岁男性,有左侧幕下肿瘤体征和伴有复发的颅内压增高症状3年零7个多月。在15例中,2例患者死于外科治疗之前,其余 Choroid plexus papilloma accounts for about 0.5% of all intracranial primary tumors (and most occur in the ventricular system). Revilla reviewed 205 cases of cerebellopontine angle tumors from Johns Hopkins Hospital (1926-1945), but none of them had choroid plexus papilloma. Therefore, cerebellar pontine primary choroideal papilloma is very rare. In the literature, we did find only 15 patients, the first of which was a 22-year-old man presented by Cushing (1917) with signs of left flank tumor and signs of increased intracranial pressure with recurrence of 3 years and 7 years More than a month. In 15 cases, 2 patients died before surgery and the rest