Computed Tomography and Magnetic Resonance Imaging of Nonhemorrhagic, Metastatic Melanoma of the Brain : Case Report
スポンサーリンク
概要
- 論文の詳細を見る
Malignant melanoma frequently metastasizes to the central nervous system. Characteristic features of such lesions are increased density on computed tomography (CT) and shortening of the T_1 and T_2 on magnetic resonance (MR) imaging. Intratumoral hemorrhage, rather than melanin, is considered to be mainly responsible for these unique radiological features. The authors report a case involving a nonhemorrhagic, metastatic intracerebral melanoma. CT revealed a high-density mass, and MR imaging demonstrated a hyperintense mass both on T_1- and T_2-weighted images. These observations suggest that melanin is in fact a major determinant of the increased density on CT scans and the high signal intensity on T_1-weighted MR images. On T_2-weighted images, the paramagnetic effect appears to vary according to the melanin content.
- 日本脳神経外科学会の論文
- 1990-02-15
著者
-
Yamaura Akira
Department Of Neurosurgery Chiba University School Of Medicine
-
Yamaura Akira
Department Of Neurological Surgery Chiba University School Of Medicine
-
SAEGUSA Takashi
Department of Neurological Surgery, Graduate School of Medicine, Chiba University
-
Uozumi Akimasa
Department Of Neurosurgery Chiba University School Of Medicine
-
OHSATO Katsunobu
Department of Neurosurgery, Chiba University School of Medicine
-
Saegusa Takashi
Department Of Neurosurgery Chiba University School Of Medicine
-
Yamaura Akira
Department Of Neurological Surgery
-
Ohsato Katsunobu
Department Of Neurosurgery Chiba University School Of Medicine
-
YAMAURA Akira
Department of Neurosurgery, Chiba University School of Medicine
関連論文
- Evaluation of Treatment for Childhood Medulloblastoma, with Special Reference to Combination Therapy with Interferon and Radiation
- Toxoplasmic Encephalitis in Patients with Acquired Immunodeficiency Syndrome : Four Case Reports
- Ictal dipole source analysis based on a realistic scalp-skull-brain head model in localizing the epileptogenic zone
- Dipole source localization of interictal epileptiform activity in temporal lobe epilepsy with medical temporal lesion
- Prognostic Significance of Changes in the Internal Acoustic Meatus Caused by Vestibular Schwannoma
- Long-Term Outcome of Endocrine Function in Patients with Neurohypophysal Germinomas
- MRI Detection of Suprasellar Germinoma Causing Central Diabetes Insipidus
- Follow-up Study of Intracranial Aneurysms with Special Reference to Long-term Social Rehabilitation
- Treatment of Aneurysms Arising from the Terminal Portion of the Basilar Artery : With Special Reference to the Radiometric Study and Accessibility of Trans-Sylvian Approach
- Radiometric Study on Posterior Inferior Cerebellar Aneurysms with Special Reference to Accessibility by the Lateral Suboccipital Approach
- Prevention of Cerebrospinal Fluid Leakage and Delayed Loss of Preserved Hearing After Vestibular Schwannoma Removal : Reconstruction of the Internal Auditory Canal in the Suboccipital Transmeatal Approach
- Sleep-Disordered Breathing in Acromegalics -Relation of Hormonal Levels and Quantitative Sleep Study by means of Bedside Oximeter-
- Study of Regional Cerebral Blood Flow in Experimental Head Injury:Changes Following Cerebral Contusion and During Spreading Depression
- Spreading Depression Following Experimental Head Injury in the Rat
- Slit ventricle syndrome after cyst-peritoneal shunting for temporal arachnoid cyst in children-a clinical entity difficult to detect on neuroimaging study
- Infarction Followed by Hemorrhage in Pituitary Adenoma due to Endocrine Stimulation Test
- Surgical Indication after Bromocriptine Theraph on Giant Prolactinomas: Effects and Limitations of the Medical Treatment
- Involvement of highly polysialylated neural cell adhesion molecule (PSA-NCAM)-positive granule cells in the amygdaloid-kindling-induced sprouting of a hippocampal mossy fiber trajectory
- Prognostic Value of CT in Head Injuries
- Computed Tomography Evaluation of Air Cells in the Petrous Bone : Relationship With Postoperative Cerebrospinal Fluid Rhinorrhea
- Preoperative Assessment of Trigeminal Neuralgia and Hemifacial Spasm Using Constructive Interference in Steady State-Three-dimensional Fourier Transformation Magnetic Resonance Imaging
- Tension Pneumocephalus as a Complication of a Ventriculoperitoneal Shunt : Case Report
- Effects of a Respiratory Stimulant on Intracranial Pressure and Cerebral Blood Flow
- 17. Report of a Case of Unilateral Intention Tremor as a Complication of Bilateral Posterior Sub-C.M.Thalamotomy for Intractable Pain
- Sigmoid Sinus Dural Arteriovenous Malformation Resulting from Jugular Foramen Schwannoma : Case Report
- Types of Traumatic Brain Injury and Regional Cerebral Blood Flow Assessed by ^<99m>Tc-HMRAO SPECT
- Long-term Follow-up of Cerebral Blood Flow in Patients with Ruptured Cerebral Aneurysm
- Neurological Deficits in the Presence of the Sinking Skin Flap following Decompressive Craniectomy
- Effects of Decompressive Craniectomy on Regional Cerebral Blood Flow in Severe Head Trauma Patients
- Isolated Metastases of Adenocarcinoma in the Bilateral Internal Auditory Meatuses Mimicking Neurofibromatosis Type 2 : Case Report
- Computed Tomography and Magnetic Resonance Imaging of Nonhemorrhagic, Metastatic Melanoma of the Brain : Case Report
- Air Bubble Cavities in the Methyl Methacrylate Plate of Cranioplasty Acting as Site of Foci for Persistent Infection : Case Report
- Clinical picture of intracranial non-traumatic dissecting aneurysm
- The Advantages of Computed Tomography over Conventional X-ray Examination in the Treatment of Cervical Spinal Diseases
- Guidelines for the Management of Severe Head Injury, 2nd Edition Guidelines from the Guidelines Committee on the Management of Severe Head Injury, the Japan Society of Neurotraumatology
- Angioarchitecture Related to Hemorrhage in Cerebral Arteriovenous Malformations