[Occipital tumor simulating pericranial sinus (author's transl)].

A case of occipital tumor simulating sinus pericranii was reported. The patient was a 4-year-old girl who suffered from headache and nausea following head injury on midoccipital tumor, but had no remarkable neurological deficit. Her occipital tumor was soft, compressible redish and cyst-like without bruit. Conray cystography of this tumor showed superior sagittal sinus like shadow (Fig. 4). Total removal of the tumor associated with epidural hematoma was performed. Histologically this tumor was confirmed as eosinophilic granuloma. Pathogenesis of this case is following, since patient's tumor was blowed, intratumor-bleeding occurred cosequently and the bleeding flowed into epidural space. So the tumor simulated sinus pericranii (Fig. 5.).