OBJECTIVE To explore the expression and significance of the tumor metastatic suppressor gene the KAI1 and Ki67 antigen in bladder transitional cell carcinoma (BTCC). METHODS Two-stepped immuno-histochemical staining...OBJECTIVE To explore the expression and significance of the tumor metastatic suppressor gene the KAI1 and Ki67 antigen in bladder transitional cell carcinoma (BTCC). METHODS Two-stepped immuno-histochemical staining was used to detect the expression of the KAI1 protein and Ki67 antigen. The reverse transcription polymerase chain reaction (RT-PCR) was used to detect the KAI1 mRNA in 54 BTCC specimens and 32 normal bladder counterparts. 13-actin was the internal control. RESULTS The KAI1 protein was mainly expressed on cell membranes at cell-to-cell borders, with uniform and continuous staining in normal bladder transitional epithelium. However, the number of positive-staining cells was greatly decreased in BTCC epithelium, and with an increase in the stage and Grade and appearance of lymph node metastasis the staining was non-uniform and discontinuous. The Ki67 antigen was expressed in the nucleus, and with an increase in the stage and Grade and appearance of lymph node metastasis, the Ki67 expression increased. The Ki67 antigen was negatively related to the expression of KAI1 (P〈0.01).The expression level of KAI1 mRNA was much greater in normal bladder transitional epithelium compared to BTCC, moreover, with an increase in the Grade, infiltration depth and appearance of lymph node metastasis, the expression of KAI1 mRNA was reduced. CONCLUSION The expression of KAI1 protein may be used as a prognostic marker to indicate the degree of infiltration and metastasis. Measurement of KAI1 and Ki67 expression together may be helpful in evaluating the metastatic potential and prognosis of BTCC patients.展开更多
Objective Cystic meningiomas are quite rare. There is a great controversy concerning the management of the cystic wall. We reported six peritumoral cystic meningiomas and reviewed the literature to discuss the managem...Objective Cystic meningiomas are quite rare. There is a great controversy concerning the management of the cystic wall. We reported six peritumoral cystic meningiomas and reviewed the literature to discuss the management of the cystic wall. Methods Six cases of peritumoral cystic meningiomas were retrospectively analyzed. Results Gadolinium-enhanced Tl-weighted magnetic resonance imaging scans disclosed the solid tumor enhancement in 3 cases, the cystic wall enhancement in 2 cases. One case only showed the cystic lesion. All the tumors were totally removed ( including the involved dura and partial cystic wall). Histopathological examination showed 3 meningiotheliomatous meningiomas, 2 microcystic meningiomas, 1 mucoid degeneration. After operation, all the patients recovered well and demonstrated no neurological deficit. During the follow-up time, no tumor was recurrence. Conclusion Magnetic resonance imaging with contrast enhancement can provide information regarding whether surgical removal of the cystic wall is indicated. Peripheral enhancement of the cystic wall strongly indicates the presence of tumor infiltration. The removal of the entire cystic wall should be performed, excessive damage to brain be prevented.展开更多
Objective To investigate the diagnosis and treatment of pheochromocytomas in urinary bladder and review relative literatures. Methods The clinical data of 6 cases of bladder pheochromocytoma were retrospectively analy...Objective To investigate the diagnosis and treatment of pheochromocytomas in urinary bladder and review relative literatures. Methods The clinical data of 6 cases of bladder pheochromocytoma were retrospectively analyzed. Bladder submucosal mass was detected by B-ultrasound in 6 cases, computerized tomography (CT) in 4, and cystoscopy in 3. All patients were treated with surgical operation. Results Two patients showed obvious fluctuation of blood pressure during operation. All patients were pathologically diagnosed as pheochromocytoma postoperatively. Five patients were followed up (from 3 months to 7 years) , and their blood pressure returned to normal. No patient had relapse and malignancy. Conclusion Typical hypertension during urination and hematuria constitute the chief symptoms of bladder pheochromocytoma. B-ultrasound, CT, and cystoscopy are the main methods for the localization of the lesions. Partial cystectomy or excision of the tumor is the preferred management and postoperative long-term follow-up is necessary.展开更多
文摘OBJECTIVE To explore the expression and significance of the tumor metastatic suppressor gene the KAI1 and Ki67 antigen in bladder transitional cell carcinoma (BTCC). METHODS Two-stepped immuno-histochemical staining was used to detect the expression of the KAI1 protein and Ki67 antigen. The reverse transcription polymerase chain reaction (RT-PCR) was used to detect the KAI1 mRNA in 54 BTCC specimens and 32 normal bladder counterparts. 13-actin was the internal control. RESULTS The KAI1 protein was mainly expressed on cell membranes at cell-to-cell borders, with uniform and continuous staining in normal bladder transitional epithelium. However, the number of positive-staining cells was greatly decreased in BTCC epithelium, and with an increase in the stage and Grade and appearance of lymph node metastasis the staining was non-uniform and discontinuous. The Ki67 antigen was expressed in the nucleus, and with an increase in the stage and Grade and appearance of lymph node metastasis, the Ki67 expression increased. The Ki67 antigen was negatively related to the expression of KAI1 (P〈0.01).The expression level of KAI1 mRNA was much greater in normal bladder transitional epithelium compared to BTCC, moreover, with an increase in the Grade, infiltration depth and appearance of lymph node metastasis, the expression of KAI1 mRNA was reduced. CONCLUSION The expression of KAI1 protein may be used as a prognostic marker to indicate the degree of infiltration and metastasis. Measurement of KAI1 and Ki67 expression together may be helpful in evaluating the metastatic potential and prognosis of BTCC patients.
文摘Objective Cystic meningiomas are quite rare. There is a great controversy concerning the management of the cystic wall. We reported six peritumoral cystic meningiomas and reviewed the literature to discuss the management of the cystic wall. Methods Six cases of peritumoral cystic meningiomas were retrospectively analyzed. Results Gadolinium-enhanced Tl-weighted magnetic resonance imaging scans disclosed the solid tumor enhancement in 3 cases, the cystic wall enhancement in 2 cases. One case only showed the cystic lesion. All the tumors were totally removed ( including the involved dura and partial cystic wall). Histopathological examination showed 3 meningiotheliomatous meningiomas, 2 microcystic meningiomas, 1 mucoid degeneration. After operation, all the patients recovered well and demonstrated no neurological deficit. During the follow-up time, no tumor was recurrence. Conclusion Magnetic resonance imaging with contrast enhancement can provide information regarding whether surgical removal of the cystic wall is indicated. Peripheral enhancement of the cystic wall strongly indicates the presence of tumor infiltration. The removal of the entire cystic wall should be performed, excessive damage to brain be prevented.
基金Supported by Natural Science Foundation of Shanghai(09ZR1418500)Foundation of Shanghai Munieipal Education Commission (IIYZ58)
文摘Objective To investigate the diagnosis and treatment of pheochromocytomas in urinary bladder and review relative literatures. Methods The clinical data of 6 cases of bladder pheochromocytoma were retrospectively analyzed. Bladder submucosal mass was detected by B-ultrasound in 6 cases, computerized tomography (CT) in 4, and cystoscopy in 3. All patients were treated with surgical operation. Results Two patients showed obvious fluctuation of blood pressure during operation. All patients were pathologically diagnosed as pheochromocytoma postoperatively. Five patients were followed up (from 3 months to 7 years) , and their blood pressure returned to normal. No patient had relapse and malignancy. Conclusion Typical hypertension during urination and hematuria constitute the chief symptoms of bladder pheochromocytoma. B-ultrasound, CT, and cystoscopy are the main methods for the localization of the lesions. Partial cystectomy or excision of the tumor is the preferred management and postoperative long-term follow-up is necessary.