Our experience of surgical management of 20 adrenal tumors was present during the period from June, 1988 to May, 1993. The results of clinical study were as follows ; 1. Average age of patients was 40.9 years with the highest incidence in sixth decade occupying 40% and male to female ratio was 1:1 and right to left ratio was equal also. 2. The adrenal tumors consist of 8 adrenocortical adenoma( including 3 primary aldosteronisms and 1 Cushing syndrome), 4 adrenocortical carcinoma(including 1 Cushing syndrome), 7 pheochromocytomas and l neuroblastoma. 3. The 11 functioning adrenal tumors( including 4 adrenocortical adenomas, 1 adrenocortica1 carcinoma and 6 pheochromocytomas) showed specific symptoms and signs and the majority symptom and sign of the 9 non-functioning adrenal tumors( including 4 adrenocortical adenomas, 3 adrenocortical carcinomas, 1 neuroblastoma and 1 pheochromocytoma) showed abdominal discomfort and pain. 4. For initial diagnosis of the adrenal tumors, USG, CT, MRI and angiography are reliable but IVP was reliable in large adrenal tumor 5. The surgical approaches were transperitoneal in 18 patients and retroperitoneal in 2 patients and postoperative surgical complication occurred in 3 patients of transperitoneal approaches that were prolonged ileus, spleen injury and pancreatic injury with pleural effusion.6. The tumor masses were 12gm to 4,000gm in weight (mean: 616gm). The adrenal benign and malignant tumor were significantly different in weight ( 120gm : 1817gm).
Adrenocortical Adenoma ; Adrenocortical Carcinoma ; Angiography ; Diagnosis ; Female ; Humans ; Ileus ; Incidence ; Magnetic Resonance Imaging ; Male ; Neuroblastoma ; Pheochromocytoma ; Spleen

No abstract available.
Cachexia* ; Ductus Arteriosus, Patent* ; Heart Failure* ; Heart* ; Humans ; Infant*

Hemangiopericytoma was first described by Stout & Murray in 1942 and was an uncommon soft tissue tumor thought to be derived from vascular pericytes. Approximately 10-15% of the cases occur in children have a propensity to develop in the region of head, neck and lower extremities. We experienced a case of congenital hemangiopericytoma of small bowel in a male neonate who showed vomiting and abdorninal distension. We reported a case of congenital hemangiopericytoma of small bowel with brief review of related literature.
Child ; Head ; Hemangiopericytoma* ; Humans ; Infant, Newborn ; Intestinal Obstruction* ; Intestine, Small ; Lower Extremity ; Male ; Neck ; Pericytes ; Vomiting

Intranasal corticosteroid injection has been used for the control of allergic rhinitis or polypoid inflammation of the nasal cavity. Transient or permanent visual loss after therapeutic intranasal injection of corticosteroid is an extremely rare but well-known disease. In this report, we present a 54-year-old male patient with chronic sinusitis with nasal polyposis who had right visual loss after bilateral intranasal triamcinolone injection. Clinical examination and fluorescent angiography revealed vascular occlusions, which involved multiple small branches of right retinal circulations. Full recovery of vision occurred 3 months after the onset of the symptom. Extreme care should be exercised to avoid visiual complication when intranasal corticosteroid injection is performed.
Angiography ; Blindness* ; Humans ; Inflammation ; Male ; Middle Aged ; Nasal Cavity ; Retinaldehyde ; Rhinitis ; Sinusitis ; Triamcinolone

Aneurysms of the posterior inferior cerebellar artery are uncommon, comprising between 0.5 and 0.7% of all intracranial aneurysms and are usually tightly confined to the medulla oblongata, the anterolateral base of the skull, and the lower cranial nerves. During the period from January 1983 to December 1997, about 1,600 aneurysms were operated on the department of neurosurgery, Pusan Paik hospital, Inje University. Of these, there were 8 cases of aneurysms in the posterior inferior cerebellar artery(PICA). The average age was 43.2 years, with a range from 11 months to 56 years, and male to female ratio was equal. Presenting signs and symptoms on admission were mental deterioration and/or headache after subarachnoid hemorrhage in 7 cases and suboccipital headache due to mass effect in 1 case. The locations of these aneurysms were in the anterior-medullary segment in 4 cases, in the lateral medullary segment in one case, and telovelotonsillar segment in 3 cases. Surgical methods were as followed; unilateral suboccipital craniectomy or craniotomy(right side in 3 cases and left side in 2 cases) in lateral or park bench position was performed in 5 cases and suboccipital craniectomy in prone position was in 3 cases. Direct neck clipping were done in 5 cases, proximal ligation in 1 case, coating and trapping in 1 case each. Surgical results were good in 5 cases, fair in 2 cases, dead in a case. Although clipping of the aneurysm neck was preferable in the aneurysm of PICA, trapping was useful when neck clipping was impossible in segments distal to the choroidal arch.
Aneurysm* ; Arteries* ; Busan ; Choroid ; Cranial Nerves ; Female ; Headache ; Humans ; Intracranial Aneurysm ; Ligation ; Male ; Medulla Oblongata ; Neck ; Neurosurgery ; Pica ; Prone Position ; Skull ; Subarachnoid Hemorrhage

No abstract available.
Arthritis* ; Dermatitis* ; Humans ; Neutrophils*

A Brain-Machine interface (BMI) allows for direct communication between the brain and machines. Neural probes for recording neural signals are among the essential components of a BMI system. In this report, we review research regarding implantable neural probes and their applications to BMIs. We first discuss conventional neural probes such as the tetrode, Utah array, Michigan probe, and electroencephalography (ECoG), following which we cover advancements in next-generation neural probes. These next-generation probes are associated with improvements in electrical properties, mechanical durability, biocompatibility, and offer a high degree of freedom in practical settings. Specifically, we focus on three key topics: (1) novel implantable neural probes that decrease the level of invasiveness without sacrificing performance, (2) multi-modal neural probes that measure both electrical and optical signals, (3) and neural probes developed using advanced materials. Because safety and precision are critical for practical applications of BMI systems, future studies should aim to enhance these properties when developing next-generation neural probes.
Brain ; Brain-Computer Interfaces* ; Electroencephalography ; Freedom ; Michigan ; Utah

Pseudoaneurysm due to cancer is uncommon generally and is extremely rare in lung cancer. We report two cases of false aneurysms due to lung cancer that spontaneously regressed upon chemotherapy without intervention. Both patients had squamous cell carcinoma of the lung and the diagnosis of a pseudoaneurysm was made using computed tomography. There was no evidence of severe bronchial hemorrhage and the psuedoaneurysms were small and well-encased. Chemotherapy was performed and the pseudoaneurysms resolved.
Aneurysm ; Aneurysm, False ; Carcinoma, Squamous Cell ; Hemorrhage ; Humans ; Lung ; Lung Neoplasms

Human adipose tissue-derived mesenchymal stem cell (hATMSC) have emerged as a potentially powerful tool for bone repair, but an appropriate evaluation system has not been established. The purpose of this study was to establish a preclinical assessment system to evaluate the efficacy and safety of cell therapies in a nude rat bone defect model. Segmental defects (5 mm) were created in the femoral diaphyses and transplanted with cell media (control), hydroxyapatite/tricalcium phosphate scaffolds (HA/TCP, Group I), hATMSCs (Group II), or three cell-loading density of hATMSC-loaded HA/TCP (Group III-V). Healing response was evaluated by serial radiography, micro-computed tomography and histology at 16 weeks. To address safety-concerns, we conducted a GLP-compliant toxicity study. Scanning electron microscopy studies showed that hATMSCs filled the pores/surfaces of scaffolds in a cell-loading density-dependent manner. We detected significant increases in bone formation in the hATMSC-loaded HA/TCP groups compared with other groups. The amount of new bone formation increased with increases in loaded cell number. In a toxicity study, no significant hATMSC-related changes were found in body weights, clinical signs, hematological/biochemical values, organ weights, or histopathological findings. In conclusion, hATMSCs loaded on HA/TCP enhance the repair of bone defects and was found to be safe under our preclinical efficacy/safety hybrid assessment system.
Adipose Tissue/*cytology ; Animals ; Biocompatible Materials/therapeutic use ; Bone Diseases/pathology/radiography/*therapy ; Bone Regeneration/physiology ; Calcium Phosphates/therapeutic use ; Diaphyses/radiography/surgery/ultrastructure ; Disease Models, Animal ; Durapatite/therapeutic use ; Femur/*pathology/radiography/surgery ; Humans ; Male ; *Mesenchymal Stem Cell Transplantation ; Mesenchymal Stem Cells/*cytology ; Rats ; Rats, Nude ; Tissue Engineering ; Tomography, X-Ray Computed ; Transplantation, Heterologous

BACKGROUND: Biomarkers for cancer have several potential clinical uses, including the following: early cancer detection, monitoring for recurrence prognostication, and risk stratification. However, no biomarker has been shown to have adequate sensitivity and specificity. Many investigators have tried to validate biomarkers for the early detection and recurrence of lung cancer. To evaluate plasma G-CSF as such a biomarker, protein levels were measured and were found to correlate with the clinicopathological features of primary lung tumors. METHODS: Between December 2006 and May 2008, 100 patients with histologically-validated primary lung cancer were enrolled into this study. To serve as controls, 127 healthy volunteers were enrolled into this study. Plasma G-CSF levels were measured in lung cancer patients using the sandwich ELISA system (R & D inc.) prior to treatment. RESULTS: The mean plasma G-CSF levels were 12.2+/-0.3 pg/mL and 46.0+/-3.8 pg/mL (mean+/-SE) in the normal and in the cancer groups, respectively. In addition, plasma G-CSF levels were higher in patients with early lung cancer than in healthy volunteers (p<.001). Plasma G-CSF levels were higher in patients who were under 65 years old or smokers. Within the cancer group, plasma G-CSF levels were higher in patients with non small cell lung cancer than in patients with small cell lung cancer (p<.05). Overall, plasma G-CSF levels were shown to increase dependent upon the type of lung cancer diagnsosed. In the order from highest to lowest, the levels of plasma G-CSF tended to decrease in the following order: large cell carcinoma, squamous cell carcinoma, adenocarcinoma, and bronchioloalveolar carcinoma. Plasma G-CSF levels tended to be higher in patients with advanced TNM stage than in localized TNM stage (I, II Adenocarcinoma ; Adenocarcinoma, Bronchiolo-Alveolar ; Adrenal Glands ; Biomarkers ; Carcinoma, Large Cell ; Carcinoma, Squamous Cell ; Enzyme-Linked Immunosorbent Assay ; Granulocyte Colony-Stimulating Factor ; Humans ; Lung ; Lung Neoplasms ; Neoplasm Metastasis ; Plasma ; Recurrence ; Research Personnel ; Small Cell Lung Carcinoma