This report presents a case of an atypical nodule arising in a hepatocellular adenoma(HCA) in a non-cirrhotic liver of a 42-year-old man. The patient had been relatively healthy until he developed right upper abdominal pain. Abdominal sonography and computerized tomogram revealed a 7.5x7cm sized mass in the right inferior segment of liver. The mass revealed the histologic features of HCA. At near center of the HCA, was found a I cm sized discrete nodule, a nodule within a nodule. The nodule revealed higher cellularity than the HCA and was composed of monotonous hepatocytes with an increased nuclear-cytoplasmic ratio, resembling atypical adenomatous hyperplasia. Interestingly, the atypical nodule showed a focal pseudoacinar arrangement of tumor cells. The histologic features of the atypical nodule arising in HCA may the morphological sequence of transformation from HCA to hepatocellular carcinoma
Carcinoma, Hepatocellular

The Enchondroma is a benign cartilage forming harmartoma arising chiefly from short tubular bones on hands and feet. If on a long tubular bone or flat bone such as femur or ilium, it is most likely to be a true neoplasm such as chondrosarcoma, not a harmartoma. A case of enchondroma was reported. It occurred over right ischium of 19 years old male and was found incidentally by roentgenogram. The lesion was biopsied and diagnos's was confirmed by histologic examination. It was treated by curretage with filling of cavity with bone chips. Post operative-course was uneventful.
Cartilage ; Chondroma ; Chondrosarcoma ; Femur ; Foot ; Hand ; Humans ; Ilium ; Ischium ; Male

Additional two cases of the primary ureteral tumor with a literatural review were presented.
Ureter*

No abstract available.
Mucin-1* ; Poroma*

Traditionally, it has been emphasized that hemolytic disease was the primary cause of gallstones (cholelithiasis) in most young patients. In recent years, gallstones and common bile duct calculi have been increasingly diagnosed in infants and children, unrelated to hemolytic diseases. On the matter, the World Health Organization (WHO) classified intraepithelial neoplasia (dysplasia) of gall bladder as one of the precursor lesions of invasive cancer. The following article describes the case of a 2-year-old girl who had a laparoscopic cholecystectomy due to cholelithiasis and the pathologic diagnosis was chronic cholecystitis with diffuse, mild mucosal dysplasia.
Child ; Cholecystectomy, Laparoscopic ; Cholecystitis ; Cholelithiasis ; Gallbladder ; Gallstones ; Humans ; Infant ; Preschool Child ; Urinary Bladder ; World Health Organization

Two cases of vertebra plana due to eosinophilic granuloma were experienced and successfully treated by anterior fusion of the involved spines at the department of Orthopedic Surgery in Seoul National University Hospital. Literature on the subject was reviewed.
Eosinophilic Granuloma ; Granuloma ; Orthopedics ; Seoul ; Spine

As a decompression means, the fasciotomy has been of good evaluation in many diseases such as impending V.I.C., ischemic myositis due to CO poisoning, snake bite, burn, anterior tibial compartment syndrome, carpal tunnel syndrome and gas gangrene, etc. From 1966 to 1973, 7 cases of snake bites and 5 cases of the ischemic myositis due to CO poisoning were treated at the Orthopedic Department of Seoul National University Hospital and the results were as follows; 1. All cases of the snake bites had got good results without any complication after the fasciotomy, while the fasciotomy performed in the ischemic myositis due to CO poisoning were not effective. 2. The time elapsed from the snake bite to the fasciotomy had a close relation to the prognosis. 3. In the 4 of 5 cases of the ischemic myositis due to CO poisoning, infections were superimposed on the fasciotomy sites. 4. The inappropriately continuous use of the tourniquet for hours after the snake bites caused worse prognosis.
Burns ; Carpal Tunnel Syndrome ; Compartment Syndromes ; Decompression ; Extremities ; Gas Gangrene ; Myositis ; Orthopedics ; Poisoning ; Prognosis ; Seoul ; Snake Bites ; Tourniquets

The managements of fractures of femoral shaft in children differ in many ways from those in adults. Fourty eight cases of fractures of femoral shaft in children who were treated at Masan Korea General Hospital from March 1981 to February 1984 were analyzed both clinically and radiologically and the following results were obtained. l. Among 48 cases, the ratio of male and female was about 2.7:1 and the highest incidence was between the age of 3 and 8 years(52.1%). 2. The main cause of fracture was traffic accident(66.7%) and the other was falling or slip down injury. 3. Middle 1/3 of femoral shaft was most commonly injured(45.8%) and transverse type was common (41.7 %). 4. The common associated injuries were head injuries, fracture of the lower extremities and fracture of pelvis. 5. 43 cases were treated with traction method and 5 with open reduction and internal fixation. 6. In general, angulation at fracture site was under 10 degrees and no clinical deformity was resulted in. 7. Among 48 cases, overring of fractured fragment was occured in 28 cases and the average length of overring was 7.5mm.
Accidental Falls ; Adult ; Child ; Congenital Abnormalities ; Craniocerebral Trauma ; Female ; Hospitals, General ; Humans ; Incidence ; Korea ; Lower Extremity ; Male ; Methods ; Pelvis ; Traction

The fibrous dysplasia, divided into 3 categories of the monostotic, polyostotic and extraskeletal forms, is a relatively rare disease which was first reported by Well in 1922 and shows a characteristic findings replacing the medullary cavity of noe or more bones by the pathologically proliferating fibrous connective tissues. In a consequence, the structural integrity of the diseased bone becomes weakened and suffers frequent episodes of pathologic fracture and deformities of the bone, which are most common around the hip. Various operative methods and instruments have been tried to manage the pathologic fracture around the hip recently. The authors report a satisfactory resnlt of total hip replacement for the pathologic fracture in a patient of the fibrous dysplasia involving the proximal half of the right femur.
Arthroplasty, Replacement, Hip ; Congenital Abnormalities ; Connective Tissue ; Femur ; Fractures, Spontaneous ; Hip ; Humans ; Rare Diseases

Alveolar macrophages participate in the host defense against P. carinii, but the mechanisms in degradation and clearance of the organism from lung has not been well established. We observed the transmission and scanning electron microscopic features and evaluated the expression of TNF-alpha and Surfactant-D in the interaction of P. carinii with alveolar macrophages. Expression of TNF-alpha and Surfactant-D in the experimentally induced P. carinii pneumonia in rat was examined by immunohistochemistry and immunoelectron microscopy. Electron microscopically, the alveolar macrophages phagocytized trophozoites and cysts of P. carinii micro-organisms. Immunohistochemically TNF-alpha was strongly expressed in the cytoplasms of alveolar macrophages. Postembedding immunogold labeling for Surfactant-D protein was expressed on the pellicles of trophozoites and cysts, P. carinii micro-organisms in the cytoplasms of macrophages, free floating surfactant materials and multilamellar bodies of type II epithelial cells. We conclude that alveolar macrophages interacted with P. carinii micro-organisms respond with increased expression of TNF-alpha. TNF-alpha may bind to P. carinii and exert a direct toxic effect upon the micro-organisms. Surfactant-D protein may augment binding of P. carinii to the alveolar macrophages and enhance the clearance of the micro-organisms.
Animals ; Cytoplasm ; Epithelial Cells ; Immunohistochemistry ; Lung ; Macrophages ; Macrophages, Alveolar* ; Microscopy, Immunoelectron ; Pneumocystis carinii* ; Pneumocystis* ; Pneumonia ; Pneumonia, Pneumocystis* ; Rats ; Trophozoites ; Tumor Necrosis Factor-alpha*