Cranial metastasis of hepatocellular carcinoma associated with chronic epidural hematoma--case report.

A case of cranial metastasis of hepatocellular carcinoma associated with epidural hematoma in a 58-year-old male is presented. The epidural hematoma demonstrated an unusual chronic clinical course and computed tomographic appearance. Associated bleeding from either the diploic marrow or emissary veins might be a cause of the slowly expanding hematoma, and the outward displacement of the artificial bone-flap implanted previously may also have contributed to the chronic course.

Multiple growths of primary calvarial meningiomas.

The authors present the case of a 68-year-old woman with multiple growths of primary calvarial meningiomas. Histological examination revealed one tumor arising in the left parietal bone that showed some malignant aspects, including hypercellularity, cellular pleomorphism, necrotic foci, and some mitoses; the tumor partially had a meningotheliomatous pattern. Two other tumors in the right parietal bone were meningotheliomatous meningiomas without any malignant features.

[A case of sphenoid ridge meningioma presenting as subarachnoid hemorrhage].

The authors present a case of sphenoid ridge meningioma presenting as subarachnoid hemorrhage. A 56-year-old man came to our hospital with a complaint of severe headache developed during evacuation of the bowels. Computed tomogram on admission revealed a mass lesion of high density, which was homogeneously enhanced with contrast media, in the medial part of the left sphenoid ridge, but no evidence of the intracranial hemorrhage.

[Massive osteolysis of the skull--case report and review of the literature].

The authors describe a rare case of massive osteolysis of the skull, along with a brief review of the literature. A 11 year-old female was admitted with a complaint of a painless depression in the right parietal region, which had been slowly enlarging for several years. Skull x-ray films revealed a radiolucent area with irregular and non-sclerotic margin in the right parietal bone.

Unusual posttraumatic porencephaly--case report.

An unusual case of posttraumatic porencephaly preceded by neither overt cerebral contusion nor hemorrhage is reported. The cerebral cortex just above the porencephalic cyst was found intra-operatively to be partially herniated into a fracture line, while the cortex elsewhere was completely intact. The porencephalic cyst communicated with the lateral ventricle.

[Barotraumatic cerebral air embolism following scuba diving].

The authors report a case of barotraumatic cerebral air embolism following scuba diving, in which air embolism was diagnosed by CT. This kind of disorder becomes more frequent with the greater popularity of scuba diving. A healthy 24-year old woman made a rapid ascent with breath hold after a scuba dive to 8 meters for 20 minutes.

[Multiple hemorrhagic cerebral amyloid angiopathy associated with leukoencephalopathy].

The authors present a case of cerebral amyloid angiopathy (CAA) which caused multiple recurrent subcortical hemorrhages and leukoencephalopathy similar to Binswanger's disease. CT scan revealed bilateral hypodensity of the hemispheric white matter in addition to multiple subcortical hemorrhages. The difference between white and gray matter densities was 14 approximately 15 HU.

[A case of calvarial metastasis of thyroid carcinoma with intraorbital extension].

A 63-year-old man came to our hospital with complaints of exophthalmos and a tumor in the right temporal region. Physical examination revealed not only these findings but also a tumor in the right lateral side of the neck. Plain skull X-ray showed radiolucent area with irregular non-sclerotic margin in the right temporal region of the skull and erosion of the lateral half of the right minor sphenoid wing.

[Giant liposarcoma of the spermatic cord: a case report].

A case of giant liposarcoma of the spermatic cord was reported. A 75-year-old man was admitted with a 25-year history of a slowly growing left scrotal solid mass without trans-illumination. The removed huge mass measuring 26.

[Usefulness of CT angiography for demonstrating cerebral aneurysms].

We report the usefulness of computed cerebral angiotomography (CT angiography) for demonstrating cerebral aneurysm and the clinical significance of CT angiography for ruptured cerebral aneurysm. Our modified method of CT angiography was easy and less time-consuming. Fifteen seconds after starting a single bolus injection, 1 ml/kg/25 seconds via cubital vein, of contrast medium (60% urograffin), 5 serial 5 mm thick-CT slices were scanned in every 6.