up almost 20% of all ovarian neoplasms. Although they are almost always benign tumors, the rare development of cancer deserves emphasis. The most common malignant change in a dermoid cyst is squamous cell carcinoma, followed by adenocarcinoma and carcinoid tumor (1-3). Primary of ovarian carcinoid tumors are uncommon and the majority of them are associated with mature cystic teratomas (4). Robb...

;Carcinoid' tumours of the rectum have been described which are classified on histological appearances into three main varieties: ;true' carcinoid or argentaffinoma, ;atypical' or non-argentaffin carcinoid, and ;composite carcinoid. The histogenesis of these tumours is discussed and it is suggested that non-argentaffin carcinoids of the rectum have an essentially similar histogenesis to certain...

Testicular carcinoid generally presents either with a palpable (painful or painless) or rarely a nonpalpable mass (when it is diagnosed incidentally on scrotal imaging) of the involved testis. An ipsilateral testicular carcinoid presenting exclusively with contralateral testicular symptoms has never been described in the literature to date. We report a case of nonpalpable left testicular carcin...

Introduction: carcinoid tumors are neuroendocrine cell tumors, most commonly found in the appendix and small bowel. carcinoid tumors are often found together with another tumor of a different histological type. However, to find two synchronously occurring carcinoid tumors in one person is uncommon, and indeed to discover two synchronous carcinoid tumors in the one organ is extremely rare. case ...

PURPOSE The use of replication-selective oncolytic adenoviruses is an emerging therapeutic approach for cancer, which thus far has not been employed for carcinoids. We therefore constructed Ad[CgA-E1A], a novel replication-selective oncolytic adenovirus, where the chromogranin A (CgA) promoter controls expression of the adenoviral E1A gene. EXPERIMENTAL DESIGN The Ad[CgA-E1A] virus was evalua...

Neuroendocrine tumors, such as carcinoids, are highly metastatic neoplasms that secrete bioactive hormones resulting in carcinoid syndrome. Few curative treatments exist outside of surgical resection. We have previously shown that activation of the Raf-1 signaling pathway can suppress hormone production in carcinoid tumor cells. In this study, we investigated a novel treatment for carcinoid tum...

BACKGROUND Carcinoid tumors are usually considered to have a low degree of malignancy and show slow progression. One of the factors indicating the malignancy of these tumors is their size, and small ampullary carcinoid tumors have been sometimes treated by endoscopic resection. CASE PRESENTATION We report a case of a 63-year-old woman with a minute ampullary carcinoid tumor that was 7 mm in d...

We report 3 cases of gastric carcinoids with hypergastrinemia. Case 1: A 60-year-old man had a 2 cm carcinoid of the stomach and underwent partial resection. Involvement of the muscularis propria and lymph nodes metastasis were observed microscopically. Follow-up gastroscopy revealed another carcinoid lesion and total gastrectomy was performed. Case 2: A 67-year-old woman with multiple carcinoi...

A carcinoid tumor is not the same thing as a carcinoma. A carcinoma is an invasive malignancy that develops within the epithelium (or lining layer) of one of the body's many cavities or organs. The cells of a Carcinoid tumor can manufacture more potent an A carcinoid tumor is not the same thing as a carcinoma. A carcinoma is an invasive malignancy that develops within the epithelium (or lining ...

The majority of bronchial adenomas show a histological structure usually described as carcinoid in type. Until recently the term " carcinoid " used in this way was meant to be descriptive only, on the understanding that this tumour bore no relationship to the better-known carcinoids of the alimentary tract. This sharp distinction has been challenged histologically by Feyrter (1959a) and on func...