Renal leiomyoma, a rare benign tumor, is a challenging diagnostic and therapeutic condition. The preoperative diagnosis of renal leiomyoma is very difficult, and the only definite method to distinguish between a leiomyoma and other renal tumor is postoperative microscopic evaluation. We report a case of leiomyoma of the kidney which was managed by radical nephrectomy under the impression of malignant renal mass which was incidentally found by ultrasonographic examination for health check in a 43-year-old woman.
Adult ; Diagnosis ; Female ; Humans ; Kidney* ; Leiomyoma* ; Nephrectomy

Peritoneal mesothelioma is a rare disease which arises from the mesothelial lining cells in the peritoneum and spreads to the peritoneal wall, omentum and other abdomina1 organs. Aabestos is one etiologic factor and the other factors are genetic cause, radiation, exposure to toxic materials and recurrent yeritonitis. We experienced a case of multiple small nodular peritoneal mesothelioma after exposure to asbestos for over 20 years. He was a sailor and had worked in the engine department of the ship, in which he wrapped up the pipe of engine in asbestos. This person came to our hospital because of inconvenience due to a distended abdomen. Tumor markers were all within normal limits and there was no evidence of tuberculosis in the abdomen and chest. The CT findings of the abdomen were as follows: There was abundant ascites in the abdominal cavity and multiple small nodules on the parietal peritoneum and especially on the lower abdomen. The omentum thickened diffusely. It was difficult to distinguish from peritoneal mesothelioma and peritoneal carcinomatosis or intestinal tuberculosis. The laparoscopic findings were as follows: There were multiple small nodules on the parietal peritoneum and omentum. The small nodules were a gray white color and uneven compared to tuberculous peritonitis. Therefore, we observed the malignant mesothelial cells by means of the light microscope and electron microscope and concluded that this case was peritoneal mesothelioma.
Abdomen ; Abdominal Cavity ; Asbestos ; Ascites ; Carcinoma ; Humans ; Mesothelioma* ; Military Personnel ; Omentum ; Peritoneum ; Peritonitis, Tuberculous ; Rare Diseases ; Ships ; Thorax ; Tuberculosis ; Biomarkers, Tumor

Early gastric cancer(EGC) is defined as carcinoma limited to the mucosa or submucosa, regardless of whether metastasis to lymph nodes have occurred, and the frequency of lymph node metastasis varies from 7 to 18%. The incidence of early gastric cancer has been increasing recently, probably with advance in the diagnostic procedure. Multiple gastric cancer, now cosidered to be a sort of multiple primary cancer by Moertels classification, is a special type of cancer in which two or more tumor lesions arise independently from the stomach. Multiple carcinoma was found in about 8.3% of 500 early gastric cancer cases at the National Cancer Center Hospital in Japan. In 77% of these, two lesions roexisted in the stomach. Coexistence of three lesions were found in 20% and more than four lesions in 3%. We report a case of multiple early gastric cancer of different histologic types in which two adenoma coexisted in the stomach.
Adenoma ; Classification ; Incidence ; Japan ; Lymph Nodes ; Mucous Membrane ; Neoplasm Metastasis ; Stomach ; Stomach Neoplasms*

Early gastric cancer(EGC) is defined as carcinoma limited to the mucosa or submucosa, regardless of whether metastasis to lymph nodes have occurred, and the frequency of lymph node metastasis varies from 7 to 18%. The incidence of early gastric cancer has been increasing recently, probably with advance in the diagnostic procedure. Multiple gastric cancer, now cosidered to be a sort of multiple primary cancer by Moertels classification, is a special type of cancer in which two or more tumor lesions arise independently from the stomach. Multiple carcinoma was found in about 8.3% of 500 early gastric cancer cases at the National Cancer Center Hospital in Japan. In 77% of these, two lesions roexisted in the stomach. Coexistence of three lesions were found in 20% and more than four lesions in 3%. We report a case of multiple early gastric cancer of different histologic types in which two adenoma coexisted in the stomach.
Adenoma ; Classification ; Incidence ; Japan ; Lymph Nodes ; Mucous Membrane ; Neoplasm Metastasis ; Stomach ; Stomach Neoplasms*

Rhabdomyosarcoma is the most common sarcoma of children and adolescents. Rhabdomyosarcoma is a highly malignant soft tissue sarcoma that can arise in any site of the body containing striated muscle or its mesenchymal analogue. The common primary sites were head and neck including orbit, extremities, genitourinary tract, trunk, retroperitoneum, gastrointestinal tract, and thorax. There are basically three types of rhabdomyosarcoma: embryonal, alveolar, and pleomorphic; these categories may overlap histologically. Retroperitoneal rhabdomyosarcoma of embryonal type is rarely reported in an adult. Since we experienced a case of 25 X 20 X 12cm-sized retroperitoneal rhabdomyosarcoma of embryonal type, we report this with a review of literatures.
Adolescent ; Adult* ; Child ; Extremities ; Gastrointestinal Tract ; Head ; Humans ; Muscle, Striated ; Neck ; Orbit ; Rhabdomyosarcoma* ; Sarcoma ; Thorax

BACKGROUND: Isolated heterotopic gastric mucosa of the upper esophagus(HGME), often referred to as inlet patch, is an asyptomatic benign lesion. It may, however, cause retrosternal chest pain and dysphagea, and rarely produce complications such as ulceration and stricture. It may be suspected on characteristic finding of endoscopy, and the diagnosis is usually proved by biposy. We studied several characteristics of HGME. METHOD: From January 1996 to May 1997, endoscopy was performed on 2000 consecutive patients (1068 male, 932 female). HGME was seen 25 patients(12 male, 13 female) among 2000 patients. RESULT: Prevalence of HGME is 1.25%. There was no significant difference of the prevalence of HGME between male and female. HGME was presented as a velvety and salmon-pink patch with a distict border from the normally pale squamous cell mucosa of the esophagus, and was seen as multiple lesions in 8 patients among 25 patients. Thirty three locailzed gastric mucosal patches, varying in size 3 mm to 30 mm in the longest diameter, were detected within or just below of upper esophageal spincter in all the twenty five patients. Biopsy specimens taken from the miucosal patches demonstrated gastric mucosa. Among 25 patients with HGME, four patients complained foreign body sensation on throat or heartburn, without other diseases such as GERD, gastritis or peptic ulcer. CONCLUSION: Further studies of a large scale about pathogenesis, prevalence, and complication of HGME will be required.
Bays ; Biopsy ; Chest Pain ; Constriction, Pathologic ; Diagnosis ; Endoscopy ; Esophagus* ; Female ; Foreign Bodies ; Gastric Mucosa* ; Gastritis ; Gastroesophageal Reflux ; Heartburn ; Humans ; Male ; Mucous Membrane ; Peptic Ulcer ; Pharynx ; Prevalence ; Sensation ; Ulcer