Tumors of the gallbladder and extrahepatic bile ducts
Benign epithelial tumors of the gallbladder and bile ducts are rare and histologically often are adenoma, having a structure similar to the papillary adenoma intrahepatic bile duct.
Cancer of the gallbladder and bile ducts
Observed mainly in older women. From the histological forms of cancer is most common papillary adenokartsnnoma, less often slizeobrazuyushtiy cancer (mucous adenokartsnnoma) and mucinous carcinoma.
Papillyarnaya adenocarcinoma
In cytological preparations cells are found, resembling normal columnar epithelium, but, unlike the latter cell adenocarcinoma slightly enlarged, with large nuclei elongated, contains 1-3 nucleoli. Basophilic cytoplasm. There mitotic figures. The cells form papillary structures and glandular.
Mucous adenocarcinoma and signet ring cell carcinoma
In cytological preparations are detected cells elongated or round shape, medium and large sites, with large nuclei, containing nucleoli. There may be a dual-core cell. The cytoplasm is abundant, filled with mucous secretion. All cell hypochromic, and when painting mutsikarminom mucus in the cytoplasm is colored in pink.
When signet ring cell carcinoma tumor cells are filled with mucus, which pushes the nucleus to the periphery.
When mucosal adenocarcinoma and signet ring cell carcinoma tumor cells form papillary structures and glandular.
Other forms of cancer of the gallbladder and bile ducts
The gall bladder and found dimorfnыy cancer differentsirovkoy both the type of adenocarcinoma and squamous cell carcinoma (adenoakantomы).
Non-epithelial tumors of the biliary tract are presented infrequent granular cell mioolastomoy and rhabdomyosarcoma. Mixed tumors most often observed carcinosarcomas.
