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Mucinous carcinoma of the breast is a well-differentiated type of adenocarcinoma accounting for 2-5% of all breast cancers. Pure mucinous carcinoma of the breast has a favorable prognosis, usually seen in post-menopausal women. Neuroendocrine differentiation has been described in both in-situ and infiltrating breast cancers .Mucinous carcinomas of the breast appear to have the greatest associat...

mucinous carcinoma of the breast is a well-differentiated type of adenocarcinoma accounting for 2-5% of all breast cancers. pure mucinous carcinoma of the breast has a favorable prognosis, usually seen in post-menopausal women. neuroendocrine differentiation has been described in both in-situ and infiltrating breast cancers .mucinous carcinomas of the breast appear to have the greatest associat...

Poorly differentiated neuroendocrine carcinoma is a rare malignancy that remains a challenge to treat. Poorly differentiated neuroendocrine carcinoma occurs at an incidence of 2% annually in United States. The current standard of care is based largely upon retrospective data. There remains a need for large prospective cooperative group trials in the management of poorly differentiated neuroendo...

Most gastric neuroendocrine tumours are well differentiated and considered as neuroendocrine neoplasms, whilst poorly differentiated lesions are considered as neuroendocrine carcinomas and account for only 6-16% of gastric neuroendocrine tumours. Gastric mixed adenoneuroendocrine carcinomas are rare malignancies usually composed of a neuroendocrine carcinoma and an adenocarcinoma with a variabl...

BACKGROUND Neuroendocrine carcinoma is rare with a proportion of less than 2% in gallbladder malignancies, cases of gallbladder neuroendocrine cell carcinoma coexisting with adenocarcinoma are exceptionally rare, and the prognosis is dismal. METHODS Herein, we presented an unusual case of poorly differentiated gallbladder neuroendocrine cell carcinoma coexisting with poorly differentiated ade...

is extremely rare and represents only a small percentage of all endocrine tumors. According to the WHO classification of gastric tumors, there are two subtypes of gastric endocrine tumors based on the histopathological classification (1). A well-differentiated endocrine tumor and poorly-differentiated endocrine carcinoma are the two major types of lesions; the well-differentiated endocrine tumo...

We report a case of coexisting poorly differentiated endocrine carcinoma and conventional adenocarcinoma in the ampulla of Vater. A 70-year-old female had a recent history of symptoms and signs related to obstructive jaundice. An initial endoscopic biopsy of the ampulla of Vater showed a poorly differentiated endocrine carcinoma in the lamina propria of duodenal mucosa. The tumor could also be ...

The imaging and pathologic features of three cases of nonlaryngeal neuroendocrine carcinoma of the head and neck are described. Neuroendocrine carcinomas represent malignant epithelial neuroendocrine neoplasms and are classified as three types: typical carcinoid (well differentiated), atypical carcinoid (moderately differentiated), and small cell neuroendocrine (poorly differentiated) carcinoma...