No abstract available.
Doxorubicin* ; Membrane Potentials* ; Membranes* ; Papillary Muscles*

No abstract available.
Atrophy* ; Brain*

We report a case of plexiform neurofibroma developed under the overlying speckled lentiginous nevus, which occurred in a 20 year-old man. In this patient and his family no other signs of von Recklinghausens disease were found. Discussion is focussed on the fact that both plexiform neurofibroma and speckled lentigmous nevus, which represent a defect in the neural crest, occurred in the same area of the skin.
Humans ; Neural Crest ; Neurofibroma, Plexiform* ; Neurofibromatosis 1 ; Nevus* ; Skin

No abstract available.
Tobacco Smoke Pollution*

No abstract available.
Polyarteritis Nodosa*

A basic problem in evaluating upper urinary tract gross hematuria is the large number of diagnostic possibilities. The causation may be suspected after the initial history and physical examination, and can be confirmed with appropriate studies. We have retrospectively studied of 60 patients who confirmed upper urinary tract hematuria through the cystoscopy in period from Oct. 1971 to Dec. 1987. We have performed relatively precise clinical studies such as urinalysis, urine culture, urine cytology, blood clotting disorders, intravenous pyelography, renal arteriography and others and then we have obtained following results. 1. Disease distributions Calculous disease 12 cases (20.0%) Malignant disease 11 cases (18.3%) Vascular disease 7 cases (11.7%) Glomerulonephropathy 4 cases ( 6.6%) Unexplained hematuria 2l cases (35.0%) etc. 2. Cystoscopy, intravenous pyelography and renal arteriography are valuable essential procedures for diagnosis of upper urinary tract bleeding. 3. Cystoscopy, intravenous pyelography and angiography will bring the percentage of patients with a clear diagnosis up to about 70 per cent, especially excretory urography and cystoscopy must always be done.
Angiography ; Blood Coagulation ; Cystoscopy ; Diagnosis* ; Hematuria* ; Hemorrhage ; Humans ; Physical Examination ; Retrospective Studies ; Urinalysis ; Urinary Tract* ; Urography ; Vascular Diseases

Ameloblastic fibrosarcoma is an extremely rare variety of odontogenic tumor. It has not previously been reported in Korea. The tumor is composed of benign odontogenic epithelium with a mesenchymal part which exhibits the histologic features of fibrosarcoma. We have reported a case of amloblastic fibrosarcoma of the mandible in a 26-year-old man with swelling of right mandible for 2 weeks. The tumor showed yellowish ill-demarcated ulcerating mass involving right premolar and molar area. Light microscopy revealed irregularly arranged strands and islands of odontogenic epithelium surrounded by abundant mesenchymal tissue with the feature of fibrosarcoma. The fibrosarcoma cells were strong positive on immunostain for vimentin and ameloblastic cells were weakly positive for cytokeratin. S-100 and CEA were negative in both epithelial and sarcoma cells. The sarcoma cells were corresponding to fibroblasts on the electron microscopy with abundancy of RER and mitochondria and covering of basal lamina. Two types of virus like particles were distributed in the cytoplasm and nuclei of sarcoma cells. We treated the patient with surgery and chemotherapy. The recovery was uneventful and the prognosis is under observation.
Male ; Humans

Clear cell meningioma is a recently recognized morphologically unique entity. It shows no sex predilection, affects primarily the lumbar region, and the cerebellopontine angle. Despite its benign appearance, it may be aggressive, particularly in intracranial cases. All lesions are moderately cellular, with the exception of stromal hyalinization. The tumor consists largely of a sheet- like or somewhat lobular pattern of polygonal cells, the cytoplasm of which is clear. No close association is noted between the recurrence or the clinical outcome and factors such as mitotic activity, the PCNA index, and the DNA ploidy status. But the MIB-1 proliferation index is appreciably higher in recurrent tumors. We experienced a case of clear-cell meningioma showing a characteristic histologic finding. A 39-year-old man was admitted due to the recent onset of right-sided, facial-nerve palsy, left hemiparesis and general weakness. A CT scan of the head showed a well defined mass in the petroclival area. After surgical resection, the patient was in good condition, but 1 year later symptoms recurred. A CT scan of the head showed a huge, recurrent petroclival tumor with adhesion to the surrounding brain parenchyme.
Adult ; Brain ; Cerebellopontine Angle ; Cytoplasm ; DNA ; Head ; Humans ; Hyalin ; Lumbosacral Region ; Meningioma* ; Paralysis ; Paresis ; Ploidies ; Proliferating Cell Nuclear Antigen ; Recurrence ; Tomography, X-Ray Computed

Extracorporeal shock wave lithotripsy(ESWL) is becoming treatment of choice for most upper tract calculi, and especially EDAP made piezoelectric E. S. W. L. can treat kidney, upper ureter and lower ureter stones. We present the results of 245 consecutive treatments performed between May, 1987 and February, 1988 with piezoeletric shock wave lithotriptor. 1. The oldest patient was age of 78 and the youngest patient was age of 15 and there was no contraindication due to other systemic disease. 2. No anesthesia were required and only narcotics were given for pain that induced from shock wave, but one, 18 years old female with renal stone was treated with ketamine. 3. Response rate revealed that complete response was 174 cases (71%), partial response was 63 cases (25.7%) and non-response was 8 cases (3.3%). 4. In complete response cases, average requirement of shock wave storages were noted that renal stone was 323, upper ureter stone was 562 and lower ureter stone was 377 and then the shock wave storage was increase depend upon the location of the stone, such as kidney, lower ureter stone and upper ureter stone in priority. 5. Staghorn calculi, multiple renal stones, caliceal diverticular stones, renal stones with migration into the ureter while treatment, impact ureter stones, ureter stones with larger than 2.5 cm and obesity were poor response factors. 6. We adopted push up (9 cases), double J stent (6 cases), stone basket (6 cases), URS.(2 cases) and nephrostomy (1 cases) as auxiliary procedure. 7. Chemical composition of treated stones were that calcium oxalate and phosphate mixed stone8 were 50.6%, calcium oxalates 33.5%, struvites 10.5%, uric acid 3.9% and calcium phosphate 1.3%. 8. We experienced 11 cases (4.4%) of complications: 5 cases of stone street, 3 cases of post ESWL flank pain, 1 case of high fever, 1 case of sepsis and 1 case of perirencal hematoma. 9. As a result, we suggest that we should consider stone size, location, situation of patient and history of stone surgery for good effectiveness from treatment with E.S.W.L.
Adolescent ; Anesthesia ; Calcium ; Calcium Oxalate ; Calculi ; Female ; Fever ; Flank Pain ; Hematoma ; Humans ; Ketamine ; Kidney ; Lithotripsy* ; Narcotics ; Obesity ; Oxalates ; Sepsis ; Shock* ; Stents ; Ureter ; Uric Acid ; Urinary Calculi ; Urolithiasis*

Gastrointestinal angiodysplasia is a distinct disease entity which causes frequent gastrointestinal bleeding. It predominantly arises at the stomach and duodenum in the upper gastrointestinal tract and cecum and ascending colon in the lower gastrointestinal tract. The general histological finding of the angiodysplasia is a submucosal vascular ectasia and tortuosity. We have experienced two cases of the intestinal angiodysplasia. The first case occurred on a jejunum in a 22-year-old woman who had anemia. The second case occurred on a sigmoid colon in a 59-year-old man who had constipation. In addition to the general histologic finding of the angiodysplasia, the microscopic findings of the first case revealed some capillary hemangioma-like areas; and in the second case, there was a marked ischemic change and the thickening of the wall.
Anemia ; Angiodysplasia* ; Capillaries ; Cecum ; Colon, Ascending ; Colon, Sigmoid ; Constipation ; Dilatation, Pathologic ; Duodenum ; Female ; Gastrointestinal Tract ; Hemorrhage ; Humans ; Jejunum ; Lower Gastrointestinal Tract ; Middle Aged ; Stomach ; Upper Gastrointestinal Tract ; Young Adult