Five cases of ameloblastoma considered to be originated from the wall of the odontogenic cysts are reported. Histologic characteristics and diagnostic criteria are aimed to study in differentiation of ameloblastoma arising in odontogenic cysts from odontogenic cysts accompanying with reactive epithelial proliferation, and the literature is reviewed. This study can propose that the ameloblastic change and downward growth of epithelial cells lining the cysts are the most important and characteristic findings of the ameloblastoma derived from odontogenic cysts. In addition, the intraluminal proliferation of epithelial cells in plexiform pattern is also significant.
Cysts

Based on a study of 140 caaes of spondyloses with chronic backache, the sites and types of spurs and underlying congenital anomalies were analized. The following results were obtained. The most common sites of spurs were expected to be between L5 & S1 but contrary to the expectation, these were found most commonly between L4 & L5 and between L3 & L4. The reason for the preponderance of the spurs between L4 & L5 and L3 & L4 were not immediately available. All spurs represent claw type except in 4 cases which resemble traction spurs of McNab but without segamental instability. There were 39 cases of congenital anomalies. 28 of them were of tropism. Thus we conclude that the most common congenital anomaly associated with spondylosis is tropism.
Animals ; Back Pain ; Hoof and Claw ; Spine ; Spondylosis ; Traction ; Tropism

No abstract available.
Osteotomy* ; Zygoma*

To evaluate the utility of gene rearrangement analysis, eight cases of malignant lymphoma, one case of Hodgkin's disease, two cases of angioiminunoblastic lymphadenopathy (AILD) and two cases of non-specific lymphadenitis were studied by immunohistochemical and genetic analysis. Southern blot analysis was perfon-ned by a using vacuum transfer system and a biotin labelled probe. This method was faster, safer, and more convenient than conventional methods. Gene rearrangement study showed rearranged novel bands in five of six cases of B cell lymphoma, in all cases of T cell lymphoma, and in all cases of AILD. No rearrangement of the B cell receptor(BCR) or of the T cell receptor(TCR) was seen in Hodgkin's disease or in nonspecific lymphadenitis. These results suggest that gene rearrangement analysis of BCR and TCR is a recommended method for the diagnosis of clonality in lymphoproliferative disorders. It would allow pathologists to differentiate lymphoma from polyclonal lymphoid proliferation and to provide information for cell lineage.

No abstract available.
Animals ; Glomerulosclerosis, Focal Segmental* ; Lovastatin* ; Puromycin* ; Rats*

No abstract available.
Ophthalmology*

The histologic differentiation of endometrial and endocervical adenocarcinomas is a common diagnostic problum of clinical importance, because the staging, treatment and prognosis of these lesions are quite different. First, we examined the distribution of acid mucin in endometrial and endocervical adenocarcinoma (23 cases and 25 cases repectively), but distinguishing differences between endometrial and endocervical adenocarcinoma, especially of endometrioid type, were not observed. Secondly, the distribution of low-molecular weight cytokeratin, vimentin and carcino-embryonic antigen (CEA) by immunohistochemistry were examined in formalin-fixed tissues. CEA was present in 88% of endocervical adenocarcinomas and 34.8% of endometrial adenocarcinoma. vimentin was found in 91.3% of endometrial adenocarcinomas, in contrast with only in 16% of endocervical adenocarcinomas. This study showed that the presence of vimentin in neoplastic glands, in which CEA is negative, may be helpful in the differential diagnosis of endometrial from endocervical adenocarcinomas.
Diagnosis, Differential ; Adenocarcinoma

The histologic differentiation of endometrial and endocervical adenocarcinomas is a common diagnostic problum of clinical importance, because the staging, treatment and prognosis of these lesions are quite different. First, we examined the distribution of acid mucin in endometrial and endocervical adenocarcinoma (23 cases and 25 cases repectively), but distinguishing differences between endometrial and endocervical adenocarcinoma, especially of endometrioid type, were not observed. Secondly, the distribution of low-molecular weight cytokeratin, vimentin and carcino-embryonic antigen (CEA) by immunohistochemistry were examined in formalin-fixed tissues. CEA was present in 88% of endocervical adenocarcinomas and 34.8% of endometrial adenocarcinoma. vimentin was found in 91.3% of endometrial adenocarcinomas, in contrast with only in 16% of endocervical adenocarcinomas. This study showed that the presence of vimentin in neoplastic glands, in which CEA is negative, may be helpful in the differential diagnosis of endometrial from endocervical adenocarcinomas.
Diagnosis, Differential ; Adenocarcinoma

Congenital lymphedema is a rare disorder of unknown etiology which affects the extremities, preponderantly the lower extremities, at or immediately after birth. We experienced a case of congenital lymphedema in a newborn with generalized edema on the left lower extremity. We performed lymphangioscintigraphy and MRI for diagnosis. Microlymphaticovenous anastomosis was done on 16 days after birth and the patient showed clinical improvement. We report this case with brief review of the related literature.
Diagnosis ; Edema ; Extremities ; Humans ; Infant, Newborn ; Lower Extremity ; Lymphedema* ; Magnetic Resonance Imaging ; Parturition

Hepatocellular carcinoma (HCC) is one of the leading causes of death in Korea. Chronic hepatitis, alcoholic liver disease and liver cirrhosis are predisposing factor of HCC. Bleeding tendency and hemorrhage resulting from reduced production of coagulation factors or portal hypertension are not uncommon in HCC, moreover spontaneous hemoperitoneum also can occur. Spontaneous hemoperitoneum is a complication of HCC, that is caused by the rupture of HCC mass which abuts on the hepatic capsule. However hemoperitoneum also occurs due to the rupture of vasculature of the mass. Emergency laparotomy is the recommended treatment, however these patients exhibit poor prognosis because of hemodynamic instability followed by combined liver disease. Herein, we report a case of spontaneous hemoperitoneum due to the rupture of subcapsular vessels with invasion of HCC in a 39-years-old man, whose tumor was left undetected.
Blood Coagulation Factors ; Carcinoma, Hepatocellular ; Cause of Death ; Emergencies ; Hemodynamics ; Hemoperitoneum ; Hemorrhage ; Hepatitis, Chronic ; Humans ; Hypertension, Portal ; Korea ; Laparotomy ; Liver Cirrhosis ; Liver Diseases ; Liver Diseases, Alcoholic ; Prognosis ; Rupture