The lacrimal fossa can be invovled by a wide specturm of orbital pathology. The correct diagnosis is importantto avoid unnecessary procedure and to do appropriate management. 14 patients with mass lesions in the lacrimalfossa were evaluated with CT and clinical findings. The results were as follows: 1. Final diagnosis of 14 caseswith lacrimal fossa tumors was pleomorphic adenoma in 3 cases, adenoid cystic carcinoma in 1 case, pseudotumor incases, lymphoma in 2 cases, neurofibroma in 1 case, chloroma in 1 case and metastatic adenocarcinoma in 1 case. 2.The duration of symptoms of pleumorphic adenoma was more than 1 year and characteristic CT findings were globularmasses with pressure erosion of the adjacent bone. Patient wih adenoid cystic carcinoma had a short history ofsymptoms. CT showed a fusiform mass but intracranial extension with frank destruction of sphenoid bone. 3.Patients wtih pseudotumor and lymphoma had symptoms for less than 1 year. The CT findings were ill-definedinfiltrative patterns with scleral thickening and the differential diagnosis of them was difficult. 4. The marginsof neurofibroma and chloroma were well defined while that of the metastatic adenocarcinoma was ill-defined. 5. Thedegree and the extent of the contrast enhancement gave no benefit in the differential diagnosis of each diseaseentities and even of the benign and malignant lesions.
Adenocarcinoma ; Adenoma ; Adenoma, Pleomorphic ; Carcinoma, Adenoid Cystic ; Diagnosis ; Diagnosis, Differential ; Humans ; Lymphoma ; Neurofibroma ; Orbit ; Pathology ; Sarcoma, Myeloid ; Sphenoid Bone ; Unnecessary Procedures

No abstract available.
Osteosarcoma* ; Spine*

No abstract available.
Arthrography*

No abstract available.
Leiomyosarcoma*

No abstract available.
Coronary Vessels*

No abstract available.
Neurilemmoma*

PURPOSE: When performing partial nephrectomy, there is a risk of excessive blood loss; this necessitates transfusion and it also results in deterioration of the renal function when a vascular clamp is used. We evaluated the usefulness of the microwave tissue coagulator for performing partial nephrectomy for renal cell carcinoma and benign renal tumors. MATERIALS AND METHODS: From October 2000 to January 2005, partial nephrectomy was performed without renal pedicle clamping with using the microwave tissue coagulator for 9 patients with seven renal cell carcinomas and two angiomyolipomas. RESULTS: In 6 patients, partial nephrectomy was successful with using the microwave tissue coagulator without renal pedicle clamping. The mean operative time and blood loss were 184 minutes and 223ml, respectively. For the remaining cases, three had positive tumor margins, so radical nephrectomy was performed for those cases. The mean creatinine level was not increased postoperatively. The mean preoperative and postoperative hemoglobin levels were 12.6g/dl and 11.7g/dl, respectively. CONCLUSIONS: Partial nephrectomy with using the microwave tissue coagulator can be safe and successful without performing renal pedicle clamping. However, the insertion line of the microwave electrode must be carefully determined for the resection to be curative, the same as when making the cut line for conventional partial nephrectomy.
Angiomyolipoma ; Carcinoma, Renal Cell ; Constriction ; Creatinine ; Electrodes ; Humans ; Kidney ; Microwaves* ; Nephrectomy* ; Operative Time

PURPOSE: Intrinsic antioxidant enzymes(AOE) are essential for protection against potential cellular damage by reactive oxygen species(ROS), which affect many biological processes including carcinogenesis. The aim of the present study was to characterize the expression of antioxidant enzymes in human bladder cancer tissue and to evaluate the relationship with histopathological characteristics. MATERIALS AND METHODS: Immunohistochemical stainingfor catalase, superoxide dismutase(SOD), and glutathione peroxidase(GPx) was performed on formalin-fixed, paraffin-embedded tissues obtained from 75 bladder cancersand 30 normal bladders. The degree of AOE expression was compared with cancer invasiveness or the cell grade. RESULTS: The expression of catalase and SOD were significantly lower in cancer tissue than in normal bladder tissue(44% vs 73.3%, p=0.012; 49.3% vs 80%, p=0.007, respectively) but GPx expression was not significantly different(45.3% vs 63.3%, p=0.146). Catalase and SOD expression were significantly lower in invasive transitional cell carcinomas than in superficial transitional cell carcinomas(32.4% vs 53.7%, p=0.034; 32.4% vs 63.4%, p=0.014, respectively), but again GPx expression was not significantly different(38.2% vs 51.2%, p=0.26). Moreover, no significant difference was observed between the expression of all three enzymes and the cancer cell grade. CONCLUSIONS: Down-regulation of the antioxidant enzyme system, as indicated by the expression of catalase and SOD, appears to be related with carcinogenesis and progression in bladder cancer.
Antioxidants ; Biological Processes ; Carcinogenesis ; Carcinoma, Transitional Cell ; Catalase ; Down-Regulation ; Glutathione* ; Humans* ; Immunohistochemistry ; Oxygen ; Superoxide Dismutase* ; Superoxides* ; Urinary Bladder Neoplasms* ; Urinary Bladder*

No abstract available.
Wernicke Encephalopathy*

Dystrophic calcification can be defined as a calcification that occurs in degenerated or necrotic tissue. It is associated with multiple clinical conditions, such as collagen vascular diseases. It involves the deposition of calcium in soft tissues despite no generalized disturbance in the calcium or phosphorus metabolism, and this is often seen at sites of previous inflammation or damage. Potassium-titanyl phosphate (KTP) laser vaporization of the prostate is safe and relatively bloodless procedure that results in a shorter catheterization, immediate symptomatic improvement, and less severe postoperative irritative symptoms. However, longer follow-up studies or reports about complications are lacking. Here in we report a case of dystrophic calcification and stone formation on the entire bladder neck after performing KTP laser vaporization of benign prostate hyperplasia. That was treated by lithotripsy and transurethral resection.
Aged ; Calcinosis/*diagnosis/pathology ; Humans ; Lasers, Solid-State/*adverse effects ; Lithotripsy ; Male ; Prostatic Hyperplasia/*surgery ; Urinary Bladder Calculi/*diagnosis/etiology/ultrasonography ; Urinary Bladder Diseases/*diagnosis/etiology/ultrasonography