曹登峰_卵巢交界性肿瘤的病理诊断.ppt

* There are 2 types of micoinvasion. The first pattern is eosinophilic cell pattern. This pattern demonstrates either single eosinophilic cells or nests of cells with abundant eosinophilic cytoplasm in the stroma of the tumor. * It has been reported that serous borderline tumors contain microinvasion. There are 2 types of microinvasion. The first type is called eosinophilic cell pattern which is characterized by single eosinophilic cells with abundant cytoplasm within the stroma or clusters or nests of cells within stroma. Sometimes there is tissue space or cleft around tumor cells. This type of microinvasion is frequently overlooked. * * * * Here is the lesion in the patient’s parametrium. It is a low grade serous carcinoma or invasive implant. * We talked to the submitted pathologist and asked him to put more sections. He put 40 more sections. This is what we found-a small focus of invasion. According to the size criteria, it is less than 3 mm but this patient already had invasive implants or metastatic low grade serous carcinoma. * * * In epithelial implants, there is a proliferation of branching papillae with small epithelial tufts and buds present on the surfaces of the peritoneum or in smoothly contoured submesothelial invaginations. * In desmoplastic implant, the epithelium appears to merge with the desmoplastic stroma. In desmoplastic implant, the epithelium appears to merge with the desmoplastic stroma. * * * * * * * The high proportion of invasive implant associated with tumors displaying a micropapillary architecture and their aggressive behavior compared to noninvasive implants suggest that invasive implants are metastatic low grade carcinomas. * how to distinguish noninvasive implants from invasive implants? how to distinguish noninvasive implants from invasive implants? How to dinstinguish noninvasive implants from invasive implants? What are microinvasion and its significance? What is the significance of lymph node involvement? Then what i