Bone metastasis of hepatocellular carcinoma appears to be peculiar when clinical manifestation of liver disease is not apparent, and initial diagnosis of metastatic hepatocellular carcinoma by fine needle aspiration cytology is rarely obtained. We experienced a case of 45-year-old man with metastatic hepatocellular carcinoma in the sacrum, which was diagnosed by fine needle aspiration cytology. The intrahepatic mass, measuring 1.2cm in diameter and kept unchanged in size for two years, was never proved to be hepatocellular carcinoma histopathologically. The aspirated neoplastic cells were mostly in sheets, showing abundant acidophilic cytoplasm and large, round, centrally located nuclei with single, prominent acidophilic mucleoli. In the cell block section, diagnosis of metastatic well-differentiated hepatocellular carcinoma was made without difficulty, and definite trabecular fashion with sinusoidal endothelial cell lining was found.
Biopsy, Fine-Needle ; Carcinoma, Hepatocellular ; Cytoplasm ; Diagnosis ; Endothelial Cells ; Humans ; Korea* ; Liver Diseases ; Middle Aged ; Neoplasm Metastasis ; Prevalence* ; Sacrum

No abstract available.
Replantation*

No abstract available.
Tissue Expansion Devices*

The biopsy and cyst aspiration of central nervous lesions by computerized tomography(CT) scan has become a popular method. Authors can simply make a needle placement in deep intracranial hematomas, brain abscesses and cystic tumors by using U-loop with CT guided external markers. Our method is believed to deserve reporting in that it is easy, safe and less expensive.
Biopsy ; Brain Abscess ; Hematoma ; Needles* ; Tomography, X-Ray Computed

The origin of osteoclast-like giant cell tumor (OGCT) of the salivary gland has been debated because the prototypic cells of osteoclast-like cells and mononuclear stromal cells are largely unexplained in this gland. Bone marrow-derived CD14+ and CD45+ monocyte-derived multipotential cells (CD14+/CD45+ MOMC) may be one of the possible origins of OGCTs of salivary glands, which have never been explored in salivary OGCTs. We present a case of OGCT accompanied with carcinoma ex pleomorphic adenoma in the parotid gland of a 67-year-old Korean female. The tumor presented as a rapidly growing cervical mass comprising a central area of carcinoma ex pleomorphic adenoma and a peripheral circumferential area of OGCT. The immunohistochemical staining pattern was phenotypically consistent with bone marrow-derived CD14+/CD45+ MOMC. This case is the first report of a salivary OGCT in Korea.
Adenoma, Pleomorphic ; Aged ; Cytosine ; Female ; Giant Cell Tumors ; Giant Cells ; Humans ; Korea ; Mixed Tumor, Malignant ; Monocytes ; Osteoclasts ; Parotid Gland ; Salivary Glands ; Stromal Cells

The origin of osteoclast-like giant cell tumor (OGCT) of the salivary gland has been debated because the prototypic cells of osteoclast-like cells and mononuclear stromal cells are largely unexplained in this gland. Bone marrow-derived CD14+ and CD45+ monocyte-derived multipotential cells (CD14+/CD45+ MOMC) may be one of the possible origins of OGCTs of salivary glands, which have never been explored in salivary OGCTs. We present a case of OGCT accompanied with carcinoma ex pleomorphic adenoma in the parotid gland of a 67-year-old Korean female. The tumor presented as a rapidly growing cervical mass comprising a central area of carcinoma ex pleomorphic adenoma and a peripheral circumferential area of OGCT. The immunohistochemical staining pattern was phenotypically consistent with bone marrow-derived CD14+/CD45+ MOMC. This case is the first report of a salivary OGCT in Korea.
Adenoma, Pleomorphic ; Aged ; Cytosine ; Female ; Giant Cell Tumors ; Giant Cells ; Humans ; Korea ; Mixed Tumor, Malignant ; Monocytes ; Osteoclasts ; Parotid Gland ; Salivary Glands ; Stromal Cells

BACKGROUND: Although dental implantation has become widespread and acceptable treatment for dental prosthodontics, maxillary posterior jaw region is often complicated by the pneumatization of the maxillary sinus and physiological resorption of the alveolar bone. When this occurs, the residual bone between the floor of the sinus and the crestal ridge is inadequate for the placement of implants. The sinus elevation procedure provides a way to increase the amount of available bone and to allow the placement of longer implants. MATERIALS & METHODS: We studied 11 patients requiring the implant placements and the maxillary sinus elevation simultaneously from 1996 to 2003 in our clinic. Nine patients were males and two patients were females, aged from 39 to 72(mean=51.6). Four patients had medical compromised states; angina pectoris, diabetes, hypertension, hepatitis. Patients didn't show any pathologic findings clinically or radiographically. We studied the success and survival rate of implants, factors increasing the osseointegrating capacity of implants. RESULTS: The success rate of osseointegration of implants was 93%. At least 6 months after loading on implants, the survival rate of implants was 78.5%. Autogenous bone graft and adequate residual bone height(>6mm) increased survival rate of implants. CONCLUSION: Successful implant placement with maxillary sinus elevation mainly depends on sufficient residual bone height, healthy maxillary sinus, autogenous bone graft.
Angina Pectoris ; Dental Implantation ; Dental Implants ; Female ; Hepatitis ; Humans ; Hypertension ; Jaw ; Male ; Maxillary Sinus* ; Osseointegration ; Prosthodontics ; Survival Rate ; Transplants

BACKGROUND: Although dental implantation has become widespread and acceptable treatment for dental prosthodontics, maxillary posterior jaw region is often complicated by the pneumatization of the maxillary sinus and physiological resorption of the alveolar bone. When this occurs, the residual bone between the floor of the sinus and the crestal ridge is inadequate for the placement of implants. The sinus elevation procedure provides a way to increase the amount of available bone and to allow the placement of longer implants. MATERIALS & METHODS: We studied 11 patients requiring the implant placements and the maxillary sinus elevation simultaneously from 1996 to 2003 in our clinic. Nine patients were males and two patients were females, aged from 39 to 72(mean=51.6). Four patients had medical compromised states; angina pectoris, diabetes, hypertension, hepatitis. Patients didn't show any pathologic findings clinically or radiographically. We studied the success and survival rate of implants, factors increasing the osseointegrating capacity of implants. RESULTS: The success rate of osseointegration of implants was 93%. At least 6 months after loading on implants, the survival rate of implants was 78.5%. Autogenous bone graft and adequate residual bone height(>6mm) increased survival rate of implants. CONCLUSION: Successful implant placement with maxillary sinus elevation mainly depends on sufficient residual bone height, healthy maxillary sinus, autogenous bone graft.
Angina Pectoris ; Dental Implantation ; Dental Implants ; Female ; Hepatitis ; Humans ; Hypertension ; Jaw ; Male ; Maxillary Sinus* ; Osseointegration ; Prosthodontics ; Survival Rate ; Transplants

Ureterocele, congenital dilatation of the terminal or intramural portion of the ureter, may be classified as either simple or ectopic and has a broad spectrum of presentation, anatomy and treatment must be individualized. From February, 1986 to March, 1994, our experiences with 8 single system ureteroceles and 12 duplex system ureteroceles were reviewed. Their presentation, radiographic findings, operative management and postoperative results were discussed. The patients in this series were distribution from 1 year old to 66 years old and the male and female ratio was 4:16. The most presenting symptom was flank pain, affecting 7 cases, and ureterocele was associated with ureteral stone: 7 cases, VUR: 2 cases, renal cyst: 1 case, and IgA nephropathy:1 case. In 8 cases of single system ureterocele, Transurethral incision(TUI) of ureterocele in 1 case, ureterocelectomy with ureteroneocystostomy in 3 cases were done. In 12 cases of duplex system ureterocele, TUI of ureterocele in 2 cases, heminephrectomy with partial ureterocelectomy in 2 cases were done. After operation was done, there was no evidence of complication. We conclude that the surgical approach to the problems associated with a ureterocele is modified by patient age, renal anomaly and the pathological condition of the lower urinary tract.
Aged ; Dilatation ; Female ; Flank Pain ; Humans ; Immunoglobulin A ; Male ; Ureter ; Ureterocele* ; Urinary Tract

PURPOSE: To describe the CT findings of primary liposarcoma of the mediastinum, and to correlate these with the pathologic findings. MATERIALS AND METHODS: We retrospectively reviewed the medical records, chest radiographs and CT scans of four male patients with histopathologically proven primary liposarcoma of the mediastinum treated between September 1996 and April 2002. The CT scans were analyzed by two radiologists, and final decisions were reached by consensus. They were analysed in terms of tumor size and location, enhancement pattern, the pattern of the fat component, calcification, mass effect, pleural effusion, lymph node enlargement, pericardial effusion, tumor extension to the costophrenic junction, and adjacent organ invasion. RESULTS: All patients presented with dyspnea and chest pain. Pathologic subtypes, which were well-differentiated and pleomorphic, were myxoid (n=2) and mixed (n=2). The transverse diameter of the mass ranged from 10.5 to 21 cm. All tumors were located in the anterior mediastinum, and all had lobulated margins. Soft-tissue attenuation predominance (n=2) occurred in the myxoid type, and roughly equal amounts of fat and soft-tissue attenuation (n=2) were present in the mixed type. A small area at calcification was seen in the mixed type (n=1). Mass effect on mediastinal structures was demonstrated in all patients. In three patients, the tumor draped around and conformed to the shape of the costophrenic junction. Chest wall invasion occurred in one patient. CONCLUSION: Findings of an anterior mediastinal location, fat attenuation, mass effect, the invasion of adjacent organs, and a lobulated margin strongly suggested mediastinal liposarcoma. CT attenuation of the lesions correlated closely with the degree of histologic differentiation.
Chest Pain ; Consensus ; Dyspnea ; Humans ; Liposarcoma* ; Lymph Nodes ; Male ; Mediastinum* ; Medical Records ; Pericardial Effusion ; Pleural Effusion ; Radiography, Thoracic ; Retrospective Studies ; Thoracic Wall ; Tomography, X-Ray Computed