Mucinous cystadenocarcinoma: Pulmonary mucinous cystadenocarcinoma is a rare lung cancer or a rare variant.
Mucinous cystadenocarcinoma of the overall description 1) The gross and microscopic characteristics: Education liquid cystadenocarcinoma main features of the general examination: The tumor uneven thickness, cysts can be single, multiple cysts can be, the latter mostly large to include several sizes of the sac, translucent plastic capsule filled with mucus-like substance Chen, lung tissue by infiltration, and thus ill-defined; microscopic findings: The wall of uneven thickness, and the contents of an incomplete tumor The wall around the lung tissue invasion overflow; wall is attached to a layer above the epithelium, obviously shaped cells, and a large, deep staining, prominent nucleoli, nuclear red common, and possessed of pathological mitosis; cancer lesions can be seen necrosis.
Mucinous cystadenocarcinoma of the overall description 2) dynamic fluid diagnosis of cystadenocarcinoma: the tumor is cystic, filled with translucent plastic Chen I like the city; the perimeter of the tumor is unclear; microscope, multi-wall covered with clear atypia of the cells, tumor infiltrating the surrounding lung tissue content.
Mucinous cystadenocarcinoma of the overall description 3) differential diagnosis: the tumor was cystic and full of mucus, so the differential diagnosis of the tumor should pay attention to:
lung fluid cystadenoma of borderline Bo: The tumor and cystadenocarcinoma liquid form of teaching is very Pulmonary mucinous cystadenoma of borderline good prognosis, cure, 5-year survival rate was IO%. Therefore, we must identify more strictly drawn sections. Identification of key points: a. pulmonary mucinous cystadenoma delivery, clear boundaries with the surrounding lung tissue, and sometimes broken wall, causing mucus only reactive hyperplasia of fibrous tissue and inflammatory granulation tissue formation, but no infiltration of tumor tissue around the lung tissue; and the new solution cystadenocarcinoma cyst due to incomplete infiltration of surrounding tissue cancer, so cancer is unclear boundaries; b. new lung fluid borderline cystadenoma, cyst and more mature with a high single layer of columnar mucous cells, only part of the cyst lining epithelial cells in 2-3 layers, may be associated with the formation of small papillae, tumor cells showed mild to moderate atypia, occasional mitosis, mitotic reason; and mucinous cystadenocarcinoma, the majority of cyst lining epithelial cells in 3 layer of epithelial cells have obvious atypia, and a large, prominent nucleoli, mitotic activity, mitotic figures can be rational and small focal necrosis.
mucinous bronchioloalveolar carcinoma (mucinous BAC): mucinous BAC, was more than the appearance of lung cancer tissue and surrounding fluid boundaries unclear and teaching cystadenocarcinoma similar. (Drilling fluid of the BAC growth along the alveolar walls, not to any form of interstitial infiltration. These are clearly at the mucinous cystadenocarcinoma.