Renal cell carcinoma has a wide and varied spectrum of symptoms and signs, which are separable into local tumor effect, metastatic symptoms and extrarenal manifestations. Therefore, for the urologist diagnosis of renal cell carcinoma can be difficult to be made even after complete evaluations. We report three cases of unusual presentations of renal cell carcinoma confirmed by exploration and microscopic examination.
Carcinoma, Renal Cell* ; Diagnosis

In this study, fine needle aspiration cytopuncture (FNAC) was done for 220 patients with liver tumors. The findings showed that FNAC was of high value in diagnosis of Hepatocellular Carcinoma (HCC). Successful first time of FNAC was 93.2%. The accurate rate 97.7%, sensitivity 97.3% and specificity 100%. 19.6% patients were in well differentiated; 47.7% average differentiated and 32.7% poor differentiated. 86.7% tumor under 3cm in diameter with well-differentiation and 86.7% tumor over 9cm in diameter with poor-differentiated. The FNAC is simple, easy performing and safe method
Carcinoma, Hepatocellular, Diagnosis

Study on 73 patients with lung cancer were operated in National Institute of Tuberculosis and Pulmonary Diseases from 1998 to 2000. Lung cancer was mostly in middle-age, men higher than women. Lung cancer was usely discovered in the advanced stage. Most of patients had no decease the number of lympho cells in periphery also as without immuno-deficiency by cells . The common types of tissues were followed: Squamous cellcarcinoma, adenocarcinoma, large cell carcinoma, small cell carcinoma and other types with low rates
Diagnosis ; Carcinoma ; Lung Neoplasms

15 patients with NPC were diagnosed by pathology were undifferentated carcinoma. The authors used the indirected immuno-fluorescent technique with the monoclonal antibody to determine HLA class I at squarmous cell of NPC tissue. HLA class I expressed weakly: 2112.8% Pan ABC; 10.838.37% B2M. There was a correlation between the prognosis groups and expressing of HLA class I
Nasopharyngeal Neoplasms ; Carcinoma ; Diagnosis

No abstract available.
Carcinoma in Situ* ; Diagnosis* ; Humans

No abstract available.
Carcinoma, Hepatocellular* ; Diagnosis*

To determine the therapeutic plan and to predict the prognosis, it is a pivotal and important task to differentiate the exact nature of the various undifferentiated neoplasms. In order to solve this problem, the electron microscopy has once been considered only method in certain cases. Recently, however, the immunoperoxidase staining method which is less expensive and easier to usethan electron microscopy has been developed and introduced. To evaluate the diagnostic value of epithelial membrane antigen(EMA), carcinoembryonic antigen(CEA) and leukocyte common antigen(LCA) immunoperoxidase method, the authors applied these staining in 15 cases of which exact diagnoses were difficult with conventional routine and special stains, using the formalin-fixed and paraffin-embedded tissue sections. The results are as follows: 1) EMA was helpful in confirming the diagnosis or revising to the proper diagnosis of undifferentiated carcinoma in 4 of 6 cases and in excluding the possibility of hepatocellular carcinoma and melanoma in 2 cases, respectively. The negative stainabilities in one case of choriocarcinoma and one case of malignant fibrous histiocytoma was useful to exclude the possibility of squamous cell carcinoma and the positive stainability in one case of giant cell carcinoma to exclude the possibility of sarcoma. 2) The diagnostic value of CEA was similar to that of EMA; CEA was useful to differentiate from malignant lymphoma in one case of epithelial tumor in which CEA was positive and EMA negative. 3) LCA was useful to differentiate one case of malignant lymphoma from undifferentiated carcinoma and to confirm Ewing's sarcoma from malignant lymphoma in one case.
Diagnosis, Differential ; Carcinoma, Hepatocellular

At Hanoi K Hospital from 1992 to 1996 years 149 sets of patho histological samples from patients with basal cell carcinoma were studied. The study showed that this cancer was developed usually in elderly subjects of average 61,8 years old of age and with male/female ratio 1,04. The carcinoma appeared mainly at the face-neck area (98,6%) especially in skin area of nose, cheek and eye (83,2%), a high portion (36,9%) of patients was hospitalized early, but the late portion was considerable – 12,1%. A rate of 16,8% appeared within 60%, especially the large size cancers – 38,9% for the size > 5cm. The recurrent cancer of < 2 cm in size developed only within 2 first years- some larger size cancer could be appeared late, after 3-4 years
Diagnosis ; Carcinoma ; Neoplasms ; Epidemiology

In the unusual manifestation of right upper lobe collapse confusing with mediastinal or parenchymal mass, both alteration of the pulmonary vessels and shifting pattern of the collapsed lobe to the periphery on supine positionare the key to the diagnosis of it rather than mediastinal or parenchymal mass. The mechanisms of these unusual manifestation s are obscure, however lobar torsion and gravity factor are considered to be a main process. Authors have experienced 2 cases of unusual manifestations of right upper lobe collapse due to bronchogenic carcinomaduring resent 2 years in Kyung Hee University hospital, and prsent radiologic findings.
Carcinoma, Bronchogenic ; Diagnosis ; Gravitation

Carcinoma ; diagnosis ; Carcinoma, Papillary ; diagnosis ; Humans ; Thyroid Neoplasms ; diagnosis