Tatsuyoshi Saiga

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A case of isolated angiitis of the central nervous system (CNS) which first presented as intracranial hemorrhage during cesarean section is reported. Only one case of isolated angiitis of the CNS in post partum has been reported to date. Although a headache in labor and puerperium usually suggests subarachnoid hemorrhage, isolated angiitis of the CNS should(More)
Pseudoangiomatous stromal hyperplasia (PASH) of the breast is a common microscopic lesion that is found at breast biopsy, and presents with proliferation of the stromal cells and slit-like pseudovascular spaces with endothelial-like spindle cells. In contrast, nodular PASH is relatively rare. We report here a case of nodular PASH with multiple palpable(More)
We describe the case of a 72 year-old man with a huge tumor in his lower abdomen and extremely high serum α-fetoprotein levels (99 100 ng/ml). The patient had no risk factors for hepatocellular carcinoma (HCC) or liver disease. Computed tomography, magnetic resonance imaging, and hepatic angiography detected no tumors in the liver before surgery. The(More)
A 73-year-old man was admitted to our hospital because of jaundice. Ultrasonography and computed tomography showed a tumor of the hepatic hilus causing obstructive jaundice. Angiography revealed a stenosis of the right hepatic artery. Under the diagnosis of carcinoma of the hepatic hilus, extended right hepatectomy with resection of the caudate lobe was(More)
We encountered two unusual cases of intrapulmonary teratoma, one in a 31-year-old female and the other in a 15-year-old female. The chief complaint of both patients was fever, and in both a consolidation was detected in the left upper lobe using routine radiography. We performed left upper lobectomy for the former patient and segmentectomy of the left(More)
A rare adult case of retroperitoneal ganglioneuroma in which magnetic resonance imaging (MRI) clearly demonstrated unusual extension of the tumor across the midline is reported. Dynamic MR imaging was very useful to distinguish benign ganglioneuroma from other retroperitoneal tumors, especially neuroblastoma and pheochromocytoma.
The correlation between the growth of ML2, ML3 and ML4 cell lines in 1% agar cultures and their metastatic potential (mouse lung adenocarcinoma) was investigated. The growth ability in 1% agar cultures of ML2, ML3 and ML4 correlated far better with growth rates at lung metastatic sites than with the period required for the cells to reach the lungs following(More)
Thorotrast is a colloidal suspension of radioactive (232)ThO(2) that naturally emits alpha particles (90%), beta particles and gamma rays (10%). Thorotrast was used as a radiographic contrast agent in the 1930s-1950s; it caused liver cancer several decades after injection because of its life-long deposition and exposure. Determination of the amount and the(More)
A method is described for producing banding patterns with methyl green-pyronin (MGP) stain in chromosomes of fibrosarcoma cells. 1) The stain was made by mixing equal volumes of 2% aqueous pyronin G, 2% aqueous methyl green, distilled water, and 0.1 M acetate buffer (pH 5.7). 2) Treatment with colcemide and hypotonic KCl (0.075 M) was performed as usual. 3)(More)