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Table 1 Clinical data for the five cases of cystic CMs in the CPA

From: Cystic cavernous malformation of the cerebellopontine angle: Case report and literature review

NO Author/Year Age/Sex History Symptoms Radiological findings Surgical findings Outcome
1 Iplikçioğlu/1986 [5] 30/Male 7 years Hearing loss, facial palsy, facial sensory loss, headache CT: solid cystic lesion with a large cyst and small nodules; slight enhancement of cyst wall; calcification within the nodules Bluish-gray lesion with xanthochromic fluid. The lesion was adherent to the brain stem and 7th and 8th cranial nerves. The lesion did not have a rich blood supply. Symptoms were not resolved and left facial palsy and hearing loss persisted.
2 Brunori/1996 [6] 60/Male 2 months Facial sensory loss, tinnitus, vertigo, ataxia MRI: solid cystic lesion with multiple cysts; marked enhancement of the solid component; hemosiderin deposition rim bordering the lesion Reddish-blue, mulberry like lesion with xanthochromic fluid. The lesion was adherent to the brain stem and 7th and 8th cranial nerves. The lesion had a rich blood supply. The patient died due to massive hemorrhage on the third postoperative day.
3 Vajramani/1998 [7] 46/Male 7 months Headache, tinnitus, vertigo, hearing loss, right cerebellar signs CT and MRI: solid cystic lesion with a large cyst and small nodules; the nodules were enhanced after contrast administration Red lesion with xanthochromic fluid. The lesion was adherent to the brain stem and was excised in two stages. The lesion had a rich blood supply. Symptoms were not resolved but no complications developed.
4 Stevenson/2005 [8] 57/Male Not available Hearing loss, tinnitus, facial numbness and facial sensory loss, ataxia MRI: solid cystic lesion a large cyst; the cystic wall was enhanced Lobulated lesion with xanthochromic fluid. The lesion was adherent to the brain stem and the 5th, 7th-11th cranial nerves. The lesion had a rich blood supply. Good recovery.
5 Present case/2010 50/Male 6 months Impaired hearing, vertigo, ataxia, facial numbness MRI: solid cystic lesion with a posterior cystic component; marked enhancement of the solid component on contrast-enhanced MRI Red lesion adherent to the brainstem, cerebellum, and 5th, 7th, and 8th cranial nerves. The lesion had a rich blood supply. Good prognosis