[Thyroid clear cell carcinoma: a case report].
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Adenocarcinoma, Clear Cell↗
Biomedical subjects
Su-sheng Shi
Publications and source records attributed to Su-sheng Shi.
[Analysis of prognostic factors in gastrointestinal stromal tumors of the small intestine].
OBJECTIVE: To explore the prognostic factors in patients with gastrointestinal stromal tumors of the small intestine. METHODS: Tumor slides stained with hematoxylin and eosin from these patients were reviewed. Two histomorphologically representative areas were identified and arrayed on a tissue microarray. Immunohistochemistry staining were performed using antibodies to detect the expression of c-kit protein (CD117), CD34, smooth muscle actin, desmin, S-100, Ki-67, P53 and bcl-2 protein. The relationship between clinicopathologic features and prognosis was analyzed by univariate analysis. RESULTS: The 1-, 3-, 5-year survival rate of 58 such patients were 98.3%, 69.7%, and 50.9% respectively. The prognosis was related with tumor size and gender by univariate analysis (P< 0.05). CONCLUSION: More attention should be paid to the male patients with small intestine stromal tumors,especially those with tumors size> 5 cm, because those tumors are more likely to metastasize than smaller tumors (< or = 5 cm).
Adult↗
[Multivariate analysis of prognosis in gastrointestinal stromal tumor].
OBJECTIVE: To identify prognostic factors in patients with gastrointestinal stromal tumors (GIST). METHODS: Hematoxylin and eosin (H&E) stained histopathological slides of tumors from patients with mesenchymal neoplasms growing in the gastrointestinal tract and abdomen were reviewed. Two histologically representative areas were identified and chosen for tissue microarray. Immunohistochemical staining was performed to demonstrate c-kit protein (CD117), CD34, smooth muscle actin, desmin and S-100 protein. The relations of various clinicopathologic features to outcome were analyzed. RESULTS: The overall disease-specific survival of 194 patients was 93.5% at 1 year, 72.1% at 3 years and 63.2% at 5 years. Univariate analysis indicated that the tumor size, mitotic count, primary location, necrosis, high cellularity, mucosal invasion, mixed cell type, hemorrhage, direct tumor invasion of surrounding tissue, male sex, incompleteness of resection, cytologic atypia were significant predictors of survival. Multivariate analysis showed that tumor size, mitotic count, necrosis, direct tumor invasion of surrounding tissue and male sex were poor prognostic signs. CONCLUSION: Tumor size and mitotic count are important prognostic factors. However, to evaluate the prognosis of these tumors, a surgical pathologist should incorporate multiple parameters into their histologic evaluation in attempt to reach an appropriate opinion on the aggressiveness of GIST.
Aged↗
[Relationship between overexpression of the RIalpha subunit of the cAMP-dependent protein kinase and clinicopathological features of lung cancer].
OBJECTIVE: To explore the relationship between the overexpression of PKA RIalpha mRNA and cliniopathological parameters in lung cancer. METHODS: RT-PCR was used to detect the expression of PKA RIalpha mRNA in 54 cases with human lung cancer and matched normal tissues. RESULTS: (1) The expression of PKA RIalpha mRNA was significantly higher in cancer tissue (66.7%) than in normal tissues (20.4%) (P < 0.01). (2) The expression was significantly correlated with TNM stage (P < 0.01), being increased with TNM stage. (3) The expression was significantly higher in patients with positive lymph nodes than in those with negative lymph nodes (P < 0.01). (4) There were no significant associations of PKA RIalpha mRNA expression with histological type, differentiation grade or size of the tumor. CONCLUSION: This study indicates that the overexpression of PKA RIalpha mRNA may play an important role in the progression, metastasis and prognosis of lung cancer.
Adenocarcinoma↗
[Expression of different RASSF1 transcripts and its clinical significance in lung carcinoma].
OBJECTIVE: To evaluate the expression of three different RASSF1 transcripts and its clinical significance in lung carcinomas. METHODS: The mRNA expression of RASSF1A, RASSF1B and RASSF1C was detected by RT-PCR in 51 human lung cancer tissues and 51 matched normal tissues. RESULTS: 1. The mRNA expression of three RASSF1 transcripts was detectable in all non-cancer tissues. However, high rate of expression loss of RASSF1A and RASSF1B existed in lung cancer tissues, which was 53.2% (2851) and 37.3% (19/51), respectively. RASSF1C was expressed in all of the tumor tissues. 2. Loss or abnormal down-regulation of RASSF1A was positively related with lymph node metastasis and TNM stage (P < 0.05) and 3. RASSF1B and RASSF1C mRNA expression was not correlated with TNM stage, histological type, differentiation grade or smoking index. CONCLUSION: There is a significant expression difference among the three RASSF1 transcripts in lung carcinoma. RASSF1A, closely associated with lymph metastasis and TNM stage of lung carcinoma, should be a new tumor suppressor gene.
Chromosome Deletion↗