Cholangiocarcinomas (CCAs) are rare and aggressive tumors accounting for less than 1% of all malignancies worldwide approximately the 10–15% primary liver cancers [1]. Unfortunately, adv...

 Background: Ovarian masses represent a range of pathology from benign cyst to highly aggressive malignant tumors. It has been estimated that gynecologic malignancy account for approximately 2% of all types of cancer in children, 60-70% of these lesions arise in the ovary.  Methods: All ovarian masses which were resected or biopsied in Mofid Children's Hospital from 2002 to 2012 were reviewe...

introduction: pleomorphic adenomas are tumors mostly originating from salivary glands. these lesions in the larynx are very rare. case report: we report a rare case of pleomorphic adenoma that originated from the mucosal lining, just above the glottic area at the level of the laryngeal ventricle in a 55-year-old female patient. the tumor could not be palpated easily but was observed in the ct s...

Neuroendocrine tumors, or more properly gastro-entero-pancreatic tumors (GEP-NETs), are cancers of the interface between the endocrine (hormonal) system and the nervous system. A neuroendocrine tumor begins in the hormone-producing cells of the body’s neuroendocrine system, which is made up of cells that are a cross between traditional endocrine cells (or hormone-producing cells) and nerve cell...

PURPOSE Kaposiform-hemangioendothelioma (KHE) is a rare vascular tumor,developing predominantly in infants and children. Despite its benign histology, this tumor frequently behaves aggressively,causing significant morbidity and mortality. The striking resemblance of its spindle cell proliferation to that seen in Kaposi Sarcoma (KS) led to the designation of KHE for this rare lesion. This work e...

Most rectal neoplasms are adenocarcinomas, but there is a small percentage of tumors which are of other histological cell lines such as neuroendocrine tumors, sarcomas, lymphomas and squamous cell carcinomas, which have special characteristics and different treatments. We have reviewed these rare tumors of the rectum from a clinical and surgical point of view.

The parapharyngeal space is a potential space, which has been described shaped like an inverted pyramid, surrounding the rhino-, oroand hipo-pharynx. Tumors arising herein are highly uncommon, representing 0,5-1% of head and neck tumors. This paper presents four particular cases treated in Emergency County Hospital, Sf.Spiridon Iasi, E N T Clinic. The diagnosis of these tumors was squamous cell...

We report our institutional experience of the management of 2 cases of rare non-Wilms' tumors; a rhabdoid tumor in a 17-month old boy and a clear cell sarcoma in a 5-year old girl. The two patients were treated with ifosfamide/carboplatin/etoposide (ICE) alternating with vincristine/doxorubicin/cyclophosphamide (VDC) and cyclophosphamide/etoposide (CE) alternating with vincristine/doxorubicin/c...

21 Carmen Jacobs, RN, OCN®, is a research nurse supervisor in the Gastrointestinal Medical Oncology Department at the University of Texas M.D. Anderson Cancer Center in Houston. Editorial assistance was provided by Meniscus Health Care Communications through an educational grant from Novartis Pharmaceuticals. Digital Object Identifier: 10.1188/09.CJON.21-23 Neuroendocrine Tumors A Rare Finding:...