• Journal of Korean Neurosurgical Society
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• v.66 no.6
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• pp.672-680
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• 2023

Objective : We evaluated the diagnosis, treatment, and long-term results of patients with dural arteriovenous fistula (dAVF), which is a very rare cause of posterior fossa hemorrhage. Methods : This study included 15 patients who underwent endovascular, surgical, combined, or Gamma Knife treatments between 2012 and 2020. Demographics and clinical features, angiographic features, treatment modalities, and outcomes were analyzed. Results : The mean age of the patients was 40±17 years (range, 17-68), and 68% were men (11/15). Seven of the patients (46.6%) were in the age group of 50 years and older. While the mean Glasgow coma scale was 11.5±3.9 (range, 4-15), 46.3% presented with headache and 53.7% had stupor/coma. Four patients (26.6%) had only cerebellar hematoma and headache. All dAVFs had cortical venous drainage. In 11 patients (73.3%), the fistula was located in the tentorium and was the most common localization. Three patients (20%) had transverse and sigmoid sinus localizations, while one patient (6.7%) had dAVF located in the foramen magnum. Eighteen sessions were performed on the patients during endovascular treatment. Sixteen sessions (88.8%) were performed with the transarterial (TA) route, one session (5.5%) with the transvenous (TV) route, and one session (5.5%) with the TA+TV route. Surgery was performed in two patients (14.2%). One patient (7.1%) passed away. While there were nine patients (64.2%) with a Rankin score between 0 and 2, the total closure rate was 69.2% in the first year of control angiograms. Conclusion : In the differential diagnosis of posterior fossa hemorrhages, the differential diagnosis of dAVFs, which is a very rare entity, should be considered, even in the middle and elderly age groups, in patients presenting with good clinical status and pure hematoma. The treatment of such patients can be done safely and effectively in a multidisciplinary manner with a good understanding of pathological vascular anatomy and appropriate endovascular treatment approaches.

• Clinical and Experimental Pediatrics
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• v.51 no.12
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• pp.1363-1367
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• 2008

Cavernous hemangioma can occur in the entire brain but rarely in cerebellum, especially in the pediatric age group. Headache, seizure, gait disturbance, recurrent bleeding may be seen. This tumor is a relatively benign condition but if the lesion located in the posterior fossa or the brain stem bleeds, irreversible brain damage may occur because of its restrictive space. Moreover, it must be differentiated from malignant tumors. We report 12.6 year-old boy who represented posterior neck myalgia as the presenting symptom. The pain continued for about a month despite analgesic medications. Brain MRI showed intracranial hemorrhage in the left cerebellum (4.5 cm) representing repeated hemorrhages at different times and originated from the cavernous hemangioma accompanied by mild hydrocephalus. The lesion was surgically removed successfully and the cavernous hemangioma was confirmed by pathologic findings. After the follow-up period of 14 months, he is in good condition without any complications.