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Sasaki K, Nozaki M, Nada Y, Yamaki T. Functional reconstruction of forehead with microneurovascular transfer of attenuated and broadened gracilis muscle. BRITISH JOURNAL OF PLASTIC SURGERY 1998; 51:313-6. [PMID: 9771351 DOI: 10.1054/bjps.1997.0304] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Reconstruction of the frontalis muscle is difficult because it is very thin and broad. A technique is described to reconstruct the frontalis muscle with microneurovascular transfer of the gracilis muscle broadened and thinned. This technique is applicable to cases with a large, full-thickness skin defect of the forehead after tumour excision or trauma.
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Yamaki T, Morimoto S, Ohtaki M, Sakatani K, Sakai J, Himi T, Harabuchi Y, Tanabe S, Hashi K. Intracranial facial nerve neurinoma: surgical strategy of tumor removal and functional reconstruction. SURGICAL NEUROLOGY 1998; 49:538-46. [PMID: 9586933 DOI: 10.1016/s0090-3019(97)00025-6] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Three cases with intracranial facial neurinoma underwent tumor removal and facial nerve reconstruction with or without tympanoplasty. Surgical strategy for each case was tailored to: (1) the site of main tumor mass, (2) its extension along the facial nerve, and (3) involvement of the auditory organs. METHODS Surgeries adopted in the three cases were: transpetrosal approach with intracranial-intratemporal facial nerve anastomosis, middle fossa and transmastoid approach with intratemporal facial nerve anstomosis and tympanoplasty, and middle fossa and transmastoid approach with intracranial-intratemporal facial nerve anastomosis and tympanoplasty. The greater auricular nerve was used as the nerve graft for all three cases. RESULTS In the follow-up period of 8-13 months there was no tumor recurrence; facial function was scored 20/90 in modified May's scoring system in each case, but two are still in the process of functional recovery. One of the two cases who underwent tympanoplasty showed complete recovery of hearing within 1 month, and the other showed worsened hearing, which was not serviceable at 3 months postoperatively. CONCLUSION Systematic surgical approach for tumor removal, facial nerve reconstruction, and auditory reconstruction should be considered in cases with intracranial facial neurinoma due to its varied clinical features.
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Choi BO, Yamaki T, Tatewaki K, Ibayashi Y, Hashi K. Deletion of complex gangliosides of human glioma cells during mitotic cell division. J Neurooncol 1997; 34:211-9. [PMID: 9258813 DOI: 10.1023/a:1005742716197] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Glycolipid compositions of the human glioma cell line T98G were studied during each phase of the cell cycle to see if those cell surface molecules are concerned with cell proliferation. In vitro cultured non-synchronized T98G cells are composed of ceramidemonohexoside (CMH), ceramidedihexoside (CDH), ceramidetrihexoside (CTH) and neolactotetraosylceramide (nLc4Cer) as neutral glycolipids, and of sulfatide (CS), gangliosides GM3, GM2, GD1a and several other gangliosides as acidic ones. While total glycolipid content per cellular weight was shown to be increased during the M phase, deletion of complex gangliosides particularly b-series gangliosides was recognized (p < 0.05). The glycolipid profile in other phases was fairly consistent, and there was no glycolipid molecule specific to a certain phase of the cell cycle. Relative enhancement of simple gangliosides with a decrease of complex ones during mitotic division may imply the functional involvement of complex gangliosides in cell-cell or cell-matrix attachment, which may have to be abandoned during the process of detachment from the matrix or cellular cleavage.
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Iwamoto Y, Maekawa M, Tenjin H, Yamaki T, Ueda S. A rare type of false negative three-dimensional CT angiography of a cerebral aneurysm. Clin Neurol Neurosurg 1997; 99:220-1. [PMID: 9350406 DOI: 10.1016/s0303-8467(97)00029-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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80
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Sasano H, Shizawa S, Nagura H, Yamaki T. Mucinous adenocarcinoma arising in a giant urachal cyst associated with pseudomyxoma peritonei and stromal osseous metaplasia. Pathol Int 1997; 47:502-5. [PMID: 9234391 DOI: 10.1111/j.1440-1827.1997.tb04531.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
An unusual urachal lesion, which is a mucinous adenocarcinoma arising in a giant urachal cyst and is associated with pseudomyxoma peritonei and stromal osseous metaplasia of the cyst wall, was examined in a 45-year-old male. The cyst was encapsulated, measured 22 x 20 x 20 cm and weighed 3800 g. The unilocular cavity was filled with mucin. Most of the cystic cavity was lined with tall, simple or stratified columnar epithelium with a focus of papillary projection into the cavity. These findings suggest that this cystic lesion represents cystadenoma rather than a simple cyst. Foci of invasive moderately differentiated mucinous adenocarcinoma were detected in the area of macroscopic papillary fronds. Carcinoembryonic antigen and CA19-9 were immunohistochemically positive for tumor cells and their serum levels were also elevated. Stromal dystrophic calcification was extensively observed in the cyst wall with foci of osseous metaplasia. Mucinous implants, which histologically demonstrated adherent mucinous masses without epithelial components on the surface, were observed in the pelvic and abdominal cavity, indicating pseudomyxoma peritonei.
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81
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Hayashi Y, Yamaki T, Odake G, Hashimoto Y, Ueda S. Long-term follow up of a growing skull fracture treated by dura and cranioplasty with artificial dura mater and methylmethacrylate. Childs Nerv Syst 1997; 13:349-51. [PMID: 9272289 DOI: 10.1007/s003810050095] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
We report the long-term follow up of a growing skull fracture treated by duraplasty and cranioplasty with artificial dura mater and methylmethacrylate. The patient had undergone duraplasty and cranioplasty 19 years earlier at the age of 1 year and 11 months old. We examined the growth of the skull and the long-term adaptation between his own skull and methylmethacrylate 19 years after cranioplasty.
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Fukuhara K, Suzuki M, Unno M, Rikiyama T, Sakamoto N, Takeuchi H, Uchiyama T, Yamaki T, Iwasashi H, Kodama H, Matsuno S. [An anaphylactic shock case after hepatic arterial infusion of zinostatin stimalamer suspension improved by anti-histaminics]. Gan To Kagaku Ryoho 1997; 24:1023-6. [PMID: 9212813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A 47-year-old man with hepatocellular carcinoma (HCC) at anterior and medical segment in the liver was treated with hepatic arterial infusion of Zinostatin Stimalamer-lipiodol suspension (SMANCS). After the 2nd infusion of SMANCS, the accumulation of lipiodol in the tumor was not good (Grade II), so additional administration was undertaken at five-weeks intervals. His systolic blood pressure immediately decreased from 120 to 60 mmHg, and he had numbness of hands, shaking chills, sweating, chest pain and numerous urticaria-like red exanthema. In spite of treatment by anti-shock agents such as steroid and catecholamines, these symptoms did not disappear, but antihistaminics greatly improved them without any serious side effects. Because of the remarkable effects of the antihistaminics and possibility of antibody production (IgE) after repeated infusions of high molecular SMANCS, this patient may have suffered anaphylactic shock caused by massive histamine release from mast cells.
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Tatewaki K, Yamaki T, Maeda Y, Tobioka H, Piao H, Yu H, Ibayashi Y, Sawada N, Hashi K. Cell density regulates crypticity of GM3 ganglioside on human glioma cells. Exp Cell Res 1997; 233:145-54. [PMID: 9184084 DOI: 10.1006/excr.1997.3563] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Human glioma cell line KG-1C contains GM3 ganglioside as its sole glycolipid. The degree of M2590 antibody binding to GM3 was found to be regulated by the cell density; the percentage of positive cells in FACS analysis decreased from approximately 20% to close to none as the cells increased their density from sparse to confluent. The contents of GM3 with different cell densities were consistent, being more than 0.4 micromol/g of the cellular weight, which was high enough to be recognized by the antibody. Trypsin treatment of the cells did not increase antibody reactivity. The extracted GM3 retained its antigenicity, being intensely stained with M2590 on a TLC plate; there was no change in chromatographic mobility either, indicating no modification of its chemical structure. The fluorescent microscope disclosed scattered dot-like staining of GM3, particularly at the periphery of the cells. We were able to expose cryptic GM3 fully within 12 h by dispersion of the cells to a sparse density. Surface labeling of GM3 with the use of limited sodium periodate oxidation of sialylated residue equally labeled GM3 either from the confluent cells or the sparse cells. Disassembly of actin filaments with cytochalasin B (10 microM) partially exposed cryptic GM3 of confluent cells, indicating reversibility of the crypticity. All together, the results indicate that cryptic GM3 actually exists on the cell surface, hidden from the surface not by other molecules but by other mechanisms associated with the cellular architecture. We are beginning to explore the possibility of selective localization of GM3 in small caves or folds of the cell membrane produced upon cell-to-cell contact.
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Yamaki T, Ikeda T, Sakamoto Y, Ohtaki M, Hashi K. Lymphoplasmacyte-rich meningioma with clinical resemblance to inflammatory pseudotumor. Report of two cases. J Neurosurg 1997; 86:898-904. [PMID: 9126910 DOI: 10.3171/jns.1997.86.5.0898] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Two cases of lymphoplasmacyte-rich meningioma manifesting clinical and radiological characteristics unusual for a meningioma are reported. The patient in Case 1 was a 22-year-old man with a 9-year history of bilateral visual disturbances and recent dyspnea. An en plaque skull base mass, which was partially resected, was found at surgery to extend down from the planum sphenoidale into the spinal canal to C-5. Seven years later most of the residual mass in the spinal canal had disappeared, although a localized round tumor recurred at C2-3. The patient in Case 2 was a 24-year-old woman with an original diagnosis of clival meningioma, which recurred as multiple skull base lesions that spontaneously regressed in 10 months. These two cases and others reported in the literature indicate that lymphoplasmacyte-rich meningiomas may manifest peculiar biological behavior more typical of intracranial granulomas than of meningiomas.
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85
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Yamaki T, Nonaka T, Akiyama K, Tanabe S, Hashi K. Supratentorial glioma manifesting as acute onset of pure motor hemiparesis--case report. Neurol Med Chir (Tokyo) 1997; 37:422-5. [PMID: 9184443 DOI: 10.2176/nmc.37.422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
A 68-year-old male presented with an anaplastic astrocytoma deep in the sensorimotor cortex manifesting as acute pure motor hemiparesis suggestive of a vascular mechanism rather than tumor mass effect. Perfusion-weighted magnetic resonance (MR) imaging showed a significant decrease of blood flow in the sensorimotor area, where fluid-attenuated inversion recovery imaging demonstrated a prominently edematous area. Angiography also suggested ischemia with poor visualization of the precentral and central arteries. Diffusion-weighted MR imaging failed to identify the edema as cytotoxic or vasogenic due to technical problems. Brain tumors may manifest through impairment of peritumoral blood supply, which can be clarified by recent MR methods.
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86
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Takasaki N, Yamaki T, Hamada M, Park L, Okada N. The salmon SmaI family of short interspersed repetitive elements (SINEs): interspecific and intraspecific variation of the insertion of SINEs in the genomes of chum and pink salmon. Genetics 1997; 146:369-80. [PMID: 9136025 PMCID: PMC1207951 DOI: 10.1093/genetics/146.1.369] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
The genomes of chum salmon and pink salmon contain a family of short interspersed repetitive elements (SINEs), designated the salmon SmaI family. It is restricted to these two species, a distribution that suggests that this SINE family might have been generated in their common ancestor. When insertions of the SmaI SINEs at 10 orthologous loci of these species were analyzed, however, it was found that there were no shared insertion sites between chum and pink salmon. Furthermore, at six loci where SmaI SINEs have been species-specifically inserted in chum salmon, insertions of SINEs were polymorphic among populations of chum salmon. By contrast, at four loci where SmaI SINEs had been species-specifically inserted in pink salmon, the SINEs were fixed among all populations of pink salmon. The interspecific and intraspecific variation of the SmaI SINEs cannot be explained by the assumption that the SmaI family was amplified in a common ancestor of these two species. To interpret these observations, we propose several possible models, including introgression and the horizontal transfer of SINEs from pink salmon to chum salmon during evolution.
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Yamaki T, Murakami N, Iwamoto Y, Sakakibara T, Kobori N, Ueda S, Kikuchi T, Uwahodo Y. Evaluation of learning and memory dysfunction and histological findings in rats with chronic stage contusion and diffuse axonal injury. Brain Res 1997; 752:151-60. [PMID: 9106451 DOI: 10.1016/s0006-8993(96)01469-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
We previously reported a modified fluid percussion device capable of consistently producing experimental cortical contusion (CC) and diffuse axonal injury (DAI) in separate groups of rats by lateral and midline fluid percussion, respectively. The purpose of the present study was to compare the differences in learning acquisition and memory retention impairments between these two types of injured rats in the chronic stage using the Morris water maze technique. We also compared the histological differences between these two different types of traumatic brain injury. The results showed a statistically significant difference in learning acquisition impairment between the sham and CC rats and also between the sham and DAI rats. However, a significant difference in memory retention impairment was observed only between the sham and DAI rats. Histologically, the neuronal cell loss of CA3 pyramidal cells in the hippocampus was observed on the ipsilateral side in the CC and bilaterally in DAI. The neuronal cell loss was seen in bilateral entorhinal cortex layer II in DAI, but it was not seen in CC. From these results, we speculate that the marked cell loss in the hippocampus CA3 region in both CC and DAI rats was related to the impairment of spatial learning acquisition. The marked cell loss in entorhinal cortex layer II in DAI rats may be one of the important factors in the impairment of spatial memory retention.
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Hiraki H, Hoshi N, Hasegawa H, Tanigawa T, Emura I, Seito T, Yamaki T, Fukuda T, Watanabe K, Suzuki T. Regular immunohistochemical localization of endothelin-1 and endothelin-B receptor in normal, hyperplastic and neoplastic human adrenocortical cells. Pathol Int 1997; 47:117-25. [PMID: 9088030 DOI: 10.1111/j.1440-1827.1997.tb03730.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The localization of endothelin (ET)-1/big ET-1, ET-3/big ET-3, ET-A and ET-B receptor was immunohistochemically examined in human adrenal glands composed of 36 normal cases, nine hyperplasia, 70 adenomas and seven carcinomas of cortical cells. In normal adrenals, ET-1/big ET-1 and ET-B receptor were regularly detected in the cortical cells, especially in the zona fasciculata for ET-1 and zona glomerulosa for ET-B receptor but not in the medulla, while ET-A receptor localized occasionally in endothelial cells or rarely in cortical cells and ET-3/big ET-3 was very limited in the cortical cells. In hyperplasia, adenoma and carcinoma, ET-1/big ET-1 and ET-B receptor showed frequent localization, although focal distribution of the ET-B receptor was rather predominant in these groups. ET-A receptor and ET-3/big ET-3 were very infrequently expressed. Functioning versus non-functioning and hypertensive versus normotensive cases revealed no significant differences in the frequency of positive cells for ET-1/big ET-1, ET-3/big ET-3, ET-A receptor or ET-B receptor. Alternatively, the frequency of immunoreactivity to ET-1/big ET-1 or ET-B receptor significantly decreased in hyperplasia, adenoma and carcinoma, when compared with that of normal adrenal cortex. The present study, therefore, indicates that ET-1/big ET-1 and ET-B receptor are a prevalent ligand-receptor system in normal and hyperplastic/neoplastic adrenocortical cells, even with a malignant profile, and may contribute in maintaining adrenocortical cell function or cell viability but not cell growth or systemic hypertension.
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Kuboyama T, Hori A, Sato T, Mikami T, Yamaki T, Ueda S. Changes in cerebral blood flow velocity in healthy young men during overnight sleep and while awake. ELECTROENCEPHALOGRAPHY AND CLINICAL NEUROPHYSIOLOGY 1997; 102:125-31. [PMID: 9060863 DOI: 10.1016/s0921-884x(96)95054-7] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Using transcranial Doppler ultrasonography, we measured in 6 healthy young men cerebral blood flow velocity (CBFV) in the middle cerebral artery as well as oxygen saturation by a non-invasive method. Continuous recordings were taken starting from a point before the onset of sleep, throughout the duration of normal nighttime sleep, ending after awakening. During stages 2, 3 and 4, CBFV was approximately 15% lower than during the waking period preceding sleep. CBFV during rapid eye movement sleep did not differ from the presleep waking value, whereas the postsleep waking value was 6.6% lower. In 5 subjects CBFV showed a transient rise after sleep onset. Oxygen saturation was lower during sleep than during waking.
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90
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Yamaki T, Tsu-ura Y, Watanabe K, Fukuda T, Suzuki T. Acute and reversible fatty metamorphosis of cultured rat hepatocytes. Pathol Int 1997; 47:103-11. [PMID: 9088028 DOI: 10.1111/j.1440-1827.1997.tb03728.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Rat hepatocyte cell line M6, B347 and J525, among which only M6 is slightly deviated from diploidy, showed marked microvesicular fatty metamorphosis in response to treatment with Tweens at concentrations of 0.05-0.025% in Eagle's minimum essential medium (MEM). Within 24 h treated cells became fatty at 100% in frequency and filled with small lipid droplets, as revealed by fat staining or at the ultrastructural level. Fatty hepatocytes, however, took again non-fatty morphology 72 h after withdrawal of Tweens from the culture medium. Growth of the cell exhibited mild retardation at the early phase of the treatment but almost similar cell density to that of control cells was achieved 24 h after the treatment. Other detergents without fatty-acid moiety, including NP-40, triton X-100, sodium deoxycholic acid and sodium cholic acid, were ineffective to induce fatty change. Oleate, a fatty-acid moiety of Tween 80 or 85, and linolate caused reversible fatty metamorphosis of the cell lines at concentrations of 1.9 x 10(4) mol/L or more and 3.8 x 10(4) mol/L or more, respectively. Ethanol induced mild steatosis of the cell lines and enhanced fatty change by linolate. Hepatic fatty acid-binding protein was not detected in the cell lines before or after the induction of fatty change. These results indicate that fatty acid itself is directly incorporated in cultured rat hepatocytes and expelled 3 days later without apparent cell degeneration.
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Iwamoto Y, Yamaki T, Murakami N, Umeda M, Tanaka C, Higuchi T, Aoki I, Naruse S, Ueda S. Investigation of morphological change of lateral and midline fluid percussion injury in rats, using magnetic resonance imaging. Neurosurgery 1997; 40:163-7. [PMID: 8971838 DOI: 10.1097/00006123-199701000-00036] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
OBJECTIVE Investigating the time course of morphological changes in experimental traumatic brain injury (TBI) in vivo helps to clarify the mechanism of TBI and develop new therapeutic modalities. We examined the morphological changes in experimental TBI, using magnetic resonance imaging (MRI) in a rat model. METHODS We produced lateral fluid percussion injury (LFP) and midline fluid percussion injury (MFP) in rats, using the Yamaki fluid percussion device. The rats were divided into four groups: LFP, MFP, sham LFP, and sham MFP. MRI was performed with a 4.7-T magnetic resonance apparatus 2 days and 90 days after the induction of injury. T1-, T2-, and T2- weighted images were obtained using a surface coil. RESULTS Hemorrhage, contusion, and brain edema in LFP models were detected on the 2nd day after injury, and the necrotic tissue was absorbed and replaced by cerebrospinal fluid on the 90th day. In MFP animals, we detected a small hemorrhage in the corpus callosum with minimal brain edema around the hemorrhage on the 2nd day after injury, and on the 90th day, enlarged ventricles and cisterns were observed, indicating brain atrophy. CONCLUSION MRI, therefore, is useful for plotting morphological changes in experimental TBI in vivo. We report the novel and clinically important finding of brain atrophy after experimental TBI.
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Yamaki T, Higuchi R, Sasaki K, Nozaki M. Multiple dermoid cysts on the forehead. Case report. SCANDINAVIAN JOURNAL OF PLASTIC AND RECONSTRUCTIVE SURGERY AND HAND SURGERY 1996; 30:321-4. [PMID: 8976028 DOI: 10.3109/02844319609056411] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
A 41-year-old man presented with multiple tumours on the forehead which had developed over a 20-year period. Preoperative computed tomography of the brain showed multiple subcutaneous lesions in the frontal region with no intracranial extension. Histological examination of a biopsy specimen from one of the tumours showed a dermoid cyst. The patient underwent excision of the tumours, and the resulting skin defect was covered with a full-thickness skin graft. His postoperative course was uneventful. Dermoid cysts of the head and neck are relatively rare, and usually occur in childhood as solitary lesions.
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Mori T, Fujimoto M, Sakae K, Shimada K, Shin H, Sakakibara T, Yamaki T, Ueda S. Familial presumed cerebral cavernous angiomas diagnosed by MRI: three generations. Neuroradiology 1996; 38:641-5. [PMID: 8912319 DOI: 10.1007/s002340050324] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Familial cerebral cavernous angiomas are rare, with an autosomal dominant pattern of inheritance. To our knowledge, 25 families with this disorder have been described. We report three family members in a direct line of descent, who all brain had lesions typical of cavernous angiomas on MRI.
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Takamura Y, Morimoto S, Uede T, Yamaki T, Minamida Y, Yamamura A, Nakagawa T. Cerebral venous sinus thrombosis associated with systemic multiple hemangiomas manifesting as chronic subdural hematoma--case report. Neurol Med Chir (Tokyo) 1996; 36:650-3. [PMID: 8913083 DOI: 10.2176/nmc.36.650] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
A 35-year-old male was admitted with headache, nausea, and vomiting persisting for 2 days. Computed tomography (CT) revealed a left chronic subdural hematoma. Cerebral angiography demonstrated cerebral venous sinus thrombosis (CVST). He had presented with a subcutaneous mass involving the neck at age 2 years, which was shown to be a cavernous angioma, and thereafter shown signs of consumptive coagulopathy with systemic multiple hemangiomas. Burr hole aspiration of the hematoma was performed. Seventy-two-hours later, he developed clouding of consciousness and right hemiparesis. CT revealed a fresh hematoma in the operated subdural cavity and hemorrhagic diathesis manifested. A frontotemporoparietal large craniotomy was performed to remove the hematoma. Extensive electrocauterization was required. He had a satisfactory postoperative course. Collateral venous pathways, resulting from the CVST due to systemic multiple hemangiomas, may have caused hemodynamic stress in the bridging veins which subsequently induced chronic subdural hematoma.
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MESH Headings
- Adult
- Angiomatosis/complications
- Angiomatosis/diagnostic imaging
- Angiomatosis/physiopathology
- Cerebral Angiography
- Cerebrovascular Disorders/complications
- Cerebrovascular Disorders/diagnostic imaging
- Cerebrovascular Disorders/physiopathology
- Chronic Disease
- Disseminated Intravascular Coagulation/complications
- Disseminated Intravascular Coagulation/physiopathology
- Drainage
- Head and Neck Neoplasms
- Hemangioma, Cavernous
- Hematoma, Subdural/diagnostic imaging
- Hematoma, Subdural/etiology
- Hematoma, Subdural/physiopathology
- Hemorrhagic Disorders/etiology
- Humans
- Male
- Neoplasms, Multiple Primary
- Neovascularization, Pathologic/etiology
- Sinus Thrombosis, Intracranial/complications
- Sinus Thrombosis, Intracranial/diagnostic imaging
- Sinus Thrombosis, Intracranial/physiopathology
- Tomography, X-Ray Computed
- Trephining
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Yamaki T, Imahori Y, Ohmori Y, Yoshino E, Hohri T, Ebisu T, Ueda S. Cerebral hemodynamics and metabolism of severe diffuse brain injury measured by PET. J Nucl Med 1996; 37:1166-70. [PMID: 8965189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Cerebral hemodynamics and metabolism in three patients with severe diffuse brain injury were measured 10 days after onset using PET. In this study, regional cerebral blood flow (rCBF), oxygen extraction fraction (rOEF), cerebral blood volume (rCBV), cerebral metabolic rate for oxygen (rCMRO2), cerebral metabolic rate for glucose (rCMRglc) and cerebral metabolic ratio (rCMRO2/rCMRglc) were measured. The Glasgow Coma Scale scores on admission were 4, 5 and 5, respectively, and CT on admission showed typical findings of diffuse brain injury. As a result, PET revealed misery perfusion and hyperglycolysis in Patient 1 and matching low perfusion and low glucose metabolism in Patients 2 and 3. Although Patient 1 died, Patients 2 and 3 had good recoveries. We speculate that a long-lasting anaerobic state, indicated by a high OEF value and low metabolic ratio, is an important undesirable factor related to the outcome.
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Matsumoto K, Houri T, Yamaki T, Ueda S. Traumatic acute subdural hematoma localized on the superior surface of the tentorium cerebelli--two case reports. Neurol Med Chir (Tokyo) 1996; 36:377-9. [PMID: 8700314 DOI: 10.2176/nmc.36.377] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
An 8-year-old boy, who fell downstairs and struck his head, and a 62-year-old female, who hit her head in the automobile accident, presented with unusual traumatic acute subdural hematoma localized on the superior surface of the tentorium cerebelli. Magnetic resonance imaging was useful for determination of the anatomical location of the hematoma, and confirmation of absence of significant parenchymal contusion. Injury of the variant bridging vein possibly caused subdural hematoma over the tentorium.
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Yoshino E, Ohmori Y, Imahori Y, Higuchi T, Furuya S, Naruse S, Mori T, Suzuki K, Yamaki T, Ueda S, Tsuzuki T, Takai S. Irradiation effects on the metabolism of metastatic brain tumors: analysis by positron emission tomography and 1H-magnetic resonance spectroscopy. Stereotact Funct Neurosurg 1996; 66 Suppl 1:240-59. [PMID: 9032867 DOI: 10.1159/000099816] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
To evaluate irradiation effects on the metabolism of metastatic brain tumors treated by Gamma Knife radiosurgery, positron emission tomography (PET) and 1H-magnetic resonance spectroscopy (MRS) studies were performed on five patients. The tumor origins were lung cancer in three patients and breast cancer in two. Treatment volume was 0.4-10.1 cm3 (mean: 5.5 cm3). The marginal dose to the tumor was 24-30 Gy (mean: 26.2 Gy). The follow-up period was 5-19 months (mean: 13.4 months). No patients had conventional whole-brain radiation therapy. 18F-fluoroboronophenylalanine (18FBPA) or 18F-fluorodeoxyglucose (18FDG) were used as tracers for the PET study. Using 1H-MRS, several metabolites were simultaneously measured in metastatic brain tumor and adjacent brain. In the PET study of the representative case, the uptake rate of 18FBPA that is actively transported to the tumor decreased markedly 15 days after radiosurgery and continued to decrease thereafter. In the 1H-MRS study, choline, which is characteristically high in metastatic brain tumors, also decreased over time. In two cases with suspected radiation injury, the enhanced region, which was decreased in size in early follow-up, enlarged progressively and was accompanied by edema. However, 18FBPA and 18FDG were not transported to the enhanced region. The peak of free lipid, which might show destruction of the cell membrane, was recognized in the enhanced region and adjacent brain in these cases. This study revealed that radiation effects on the metabolism of metastatic brain tumors occur at an early stage after radiosurgery and continue over several months. In particular, in the case of radiation injury, PET and 1H-MRS studies made it possible to distinguish between regrowth of the tumor and radiation injury.
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98
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Yamaki T, Yoshino E, Fujimoto M, Ohmori Y, Imahori Y, Ueda S. Chronological positron emission tomographic study of severe diffuse brain injury in the chronic stage. THE JOURNAL OF TRAUMA 1996; 40:50-6. [PMID: 8576999 DOI: 10.1097/00005373-199601000-00010] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Cerebral blood flow and metabolism were investigated in five patients with severe diffuse brain injury in the chronic stage, using positron emission tomography (PET). Regional cerebral blood flow, regional oxygen extraction fraction, regional cerebral blood volume, regional cerebral metabolic rate for oxygen, and regional cerebral metabolic rate for glucose were measured bilaterally in the frontal, temporal, occipital, and parietal gray matter, as well as the white matter of the centrum semiovale. In 4 of 5 patients, a follow-up PET study was also performed. In three cases, below-normal regional cerebral blood flow and regional cerebral metabolic rate for oxygen values accompanied by above-normal regional oxygen extraction fraction values, as well as low metabolism, were demonstrated in the initial PET studies. In two of three cases, clinical improvements were observed, and follow-up PET data also improved. These findings suggest that chronological PET studies may be able to assess quantitatively clinical improvements in patients with diffuse brain injury.
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99
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Hoshi N, Yamaki T, Hiraki H, Natsume T, Saitoh A, Watanabe K, Suzuki T. Functional nerve growth factor receptor in von Recklinghausen neurofibromatosis: an immunocytochemical and short-term culture study. Pathol Int 1996; 46:1-8. [PMID: 10846543 DOI: 10.1111/j.1440-1827.1996.tb03526.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Immunocytochemistry reveals 75 kDa low affinity type nerve growth factor receptor (NGFR) on the cell membrane of human neurofibroma cells of von Recklinghausen disease in vivo and in vitro. NGF-immunoreactivity is detected in the primary and cultured tumor cells. Growth augmentation of cultured neurofibroma cells by exogenous NGF is also confirmed. Phosphotyrosine-immunoreactivity is demonstrated by immunocytochemistry in the in vivo and in vitro neurofibroma cells suggesting possible phosphorylation of tyrosine residue in the NGFR or a cellular protein downstream of signal transduction through the ligand receptor system. These results indicate human neurofibroma cells possess functional NGFR and the growth is potentiated through the NGF-NGFR system in the paracrine and/or autocrine fashion.
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100
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Haraguchi K, Yamaki T, Kurokawa Y, Ohtaki M, Ibayashi Y, Uede T, Tanabe S, Hashi K. A case of calcification of the cervical ligamentum flavum. NO SHINKEI GEKA. NEUROLOGICAL SURGERY 1996; 24:69-73. [PMID: 8559268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
We report a case of cervical myelopathy caused by the calcification of the cervical ligamentum flavum. A 42-year-old woman with gait disturbance and an episode of dysuria was transferred to our hospital on June 30, 1994. Neurological examination revealed only a mild right hemiparesis. A plain neck X-ray and a tomogram revealed a nodular calcification in the posterior part of the spinal canal at the level of C5/6. Three dimensional computed tomography clearly demonstrated that the mass consisted of three nodular structures on the vertebral lamina. Magnetic resonance images demonstrated severe compression of the spinal cord by the mass whose intensity was low. The mass was removed en bloc together with the ligamentum flavum and C5 and C6 lamina. The mass showed no continuity to the dura mater. The calcification was confined within the ligament. The patient's neurological deficits were resolved two weeks after the surgery. X-ray diffraction study demonstrated the component of the mass was found to be pure hydroxyapatite. Clinical features of calcification of the ligamentum flavum are reviewed from 85 reported cases including ours, and the difference between this calcification and the ossification of the ligament is emphasized. Calcification of the ligamentum flaum is a distinct clinical entity.
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