Primary meningeal sarcoma with leiomyoblastic differentiation complicating pregnancy

Intracranial malignant tumors during pregnancy are rare. Primary meningeal sarcoma with leiomyoblastic differentiation during pregnancy has not been reported. We present the case of a 25-year-old woman in the third trimester of pregnancy with a large intracranial tumor destructing the parietal calvaria and invasion of soft tissues. Histological examination revealed primary meningeal sarcoma with leiomyoblastic differentiation. A gross macroscopical resection of the tumor with removal of the infiltrated parietal calvaria was performed after delivery of a healthy baby through caesarean section. A mass on the head rapidly enlarging during pregnancy should be considered for a malignancy of intracranial origin. Early radiological exams as well as tumor resection followed by staging and multimodality treatment should be urgently performed.     

18F-FDG PET/CT在探查腹膜转移性肿瘤中的价值

目的:评价18F-FDG PET/CT探查腹膜转移瘤的价值。方法:39例有腹部原发恶性肿瘤手术史患者行PET/CT首次和延迟扫描,在PET/CT图像上记录病灶大小、分布,结果与常规CT比较。测量62个病灶和对照组32例腹部无病变患者的肠管SUVmax。所有病例经手术、病理、影像学和肿瘤标记物随访作出最后诊断。结果:最终确认39例中31例腹膜转移瘤,病灶均为结节状或沿腹膜条片状分布,多位于肝脏周围和盆腔腹膜,其他部位腹膜少见。PET/CT漏诊的4个病灶主要位于肝脏周围,1例因化疗不久病灶FDG低摄取而漏诊,因此敏感性为87.1%,特异性为87.1%。CT仅检出12例转移瘤。转移瘤SUVmax明显高于对照组肠管SUVmax(P=0.0000)。结论:18F-FDG PET/CT能够较CT更早、更多地检出腹膜转移瘤,病灶体积小、位于基础摄取较高的肝脏周围是漏诊主要原因,而结合原发肿瘤病史和肿瘤标记物检查有利于诊断。     

不典型结核性脑膜炎25例临床分析

目的 总结不典型结核性脑膜炎的诊断方法,以避免误诊.方法 结合临床表现、脑脊液、影像学等辅助检查,回顾性分析25例不典型结脑的临床资料.结果 25例患者临床表现多无特异性,与其它颅内感染及脑血管痛难以鉴别,只有综合分析,才能得以确诊.结论 在缺乏典型临床表现情况下,脑脊液反复检查可呈典型改变,影像学检查对诊断有重要意义.     

血清肿瘤标记物检测对脑膜癌病早期诊断的意义

目的探讨血清肿瘤标记物检测对脑膜癌病早期诊断的意义。方法对26例脑膜癌病患者分别检测血清肿瘤标记物CEA、CA199、CA125,将其阳性率与首次腰穿找到癌细胞的阳性率进行比较。结果CEA的阳性率为65.4%(17例),首次腰穿找到癌细胞的阳性率为26.9%(7例),两者相比差异有统计学意义(P<0.05)。联合检测CEA、CA199和CA125的总阳性率为88.5%(23例),与首次腰穿找到癌细胞的阳性率(26.9%)比较,差异有统计学意义(P<0.05)。CA199和CA125的阳性率分别为11.5%(3例)和23.1%(6例),与首次腰穿找到癌细胞的阳性率相比差异无统计学意义(P>0.05)。结论联合检测血清肿瘤标记物的阳性率高于腰穿找到癌细胞阳性率约3.2倍,其敏感性高于腰穿找癌细胞,可作为脑膜癌病筛查的重要手段。     

An experimental model of leptomeningeal metastases employing rat mammary carcinoma cells

Summary Five percent of patients dying with breast cancer have leptomeningeal metastases (LM) but current therapy is of only marginal benefit. Therefore, an experimental model of LM from breast cancer was developed to facilitate the development of novel therapies. Cell suspensions of 13762 MAT BIII rat mammary carcinoma cells are injected into the cisterna magna of adult, female Fischer 344 rats under general anesthesia. 10–12 days after the injection of 2×10⁵ viable cells, animals develop neurologic signs, including ataxia, paralysis and spontaneous rotation. Histologically, tumor cells can be seen in the subarachnoid space over the surface of the brain and spinal cord and within the ventricles. Tumor cells do not invade the brain parenchyma. Collections of tumor cells are extensively infiltrated by macrophages and CD8-positive (suppressor/cytotoxic) T cells, but by few CD4-positive (helper) T cells. MAT BIII cells therefore provide a model of LM from breast cancer with a reproducible clinical course and histologic features. The tumor elicits a cellular immune response and can be useful in exploring biologic therapies for leptomeningeal metastases.     

p53腺病毒注射液联合得力生对H22腹水瘤的作用

目的:探讨p53腺病毒注射液(Ad-p53)联合中药得力生治疗腹水瘤的作用。方法:建立H22肝癌腹水瘤昆明小鼠模型,建模48h后分组给予Ad-p53、得力生及两药联用。用药1周后检测体重、腹围、腹水量、腹水瘤细胞计数,流式细胞仪测定瘤细胞凋亡百分比以及细胞周期情况。结果:Ad-p53、得力生单用组,除体重以外的上述指标与对照组比较均有统计学差异(P<0.05),析因分析两药联用也有统计学差异(P<0.05)。结论:腹腔注射Ad-p53、得力生均可抑制H22细胞生长并减少腹水形成,Ad-p53与中药得力生联合腹腔内给药对治疗腹腔转移癌有协同作用。     

Cytoreductive surgery and perioperative intraperitoneal chemotherapy for peritoneal carcinomatosis from colorectal carcinoma: non-mucinous tumour associated with an improved survival

AIMS: Cytoreductive surgery combined with perioperative intraperitoneal chemotherapy has been reported as a treatment option for patients with peritoneal carcinomatosis from colorectal carcinoma. METHODS: Thirty patients with colorectal peritoneal carcinomatosis underwent cytoreductive surgery and perioperative intraperitoneal chemotherapy. All appendiceal cancers were excluded. All patients were followed until January 2006 or death. Univariate analysis was performed to evaluate significant prognostic factors for overall survival, defined from the time of surgery. RESULTS: There were 13 male patients. The mean age at the time of surgery was 54years. There was no hospital mortality. The mean duration of hospital stay was 27days. The overall median survival was 29months, with 1- and 2-year survival of 72% and 64%, respectively. Twenty-one patients had complete cytoreduction and their 1- and 2-year survival rates were 85% and 71%, respectively. Univariate analysis demonstrated that patients with non-mucinous colorectal adenocarcinoma, Peritoneal Cancer Index (PCI) < or =13, and complete cytoreduction were associated with an improved survival. CONCLUSIONS: This study reported on 30 patients who underwent cytoreductive surgery and perioperative intraperitoneal chemotherapy for colorectal peritoneal carcinomatosis. Patients with mucinous tumour had relatively more extensive intraperitoneal disease. Non-mucinous colorectal adenocarcinoma, PCI < or =13, and complete cytoreduction were associated with an improved survival.     

Delayed peritoneal and retroperitoneal abcesses caused by spilled gallstones: a complication following laparoscopic cholecystectomy

Many complications following laparoscopic cholecystectomy have been reported. We report a case of delayed peritoneal and retroperitoneal abcesses caused by spilled gallstones from a laparoscopic cholecystectomy performed 1 year earlier. This diagnosis was suggested only at sonography because the aggressive behavior of the lesions containing nonopaque gallstones suggested, by computed-tomography scan, peritoneal metastatic disease.     

Bone metastasis of intracranial meningeal hemangiopericytoma

The authors investigated the clinical and radiological features and the treatment strategy for bone metastasis from a rare tumor, intracranial meningeal hemangiopericytoma. The clinical presentations and characteristic imagings were retrospectively reviewed in 15 bony metastatic lesions of four patients with this tumor. All four cases were initially diagnosed as atypical meningioma, and all of the bone metastases developed more than 10 years after the initial intracranial surgery. The common symptom induced by the metastatic lesions was pain. On plain roentgen films and computed tomography (CT), the involved bones showed thinning and expansion. On bone scintigraphy, a “cold-in-hot” appearance was typically observed. The clinical and radiological findings were diagnosed as bone metastasis from intracranial meningeal hemangiopericytoma. The prognosis after bone metastasis was relatively short compared to the long duration before bone metastases, because of the coexistence of other, visceral, metastasis. Combined with effective radiation therapy, surgical intervention for bone metastasis of this tumor should be carefully considered.