malignant germ-cell tumors (mgct) are rare tumors of childhood accounting for less than 3% of pediatric malignancies. endodermal sinus tumor (est) forms the most common histologic subtype of mgct. the vagina is an extremely rare site for gcts. an 8-month-old female was admitted with a short history of vaginal bleeding, and a mass protruding from the vagina. she was pale and a mass was palpable ...

placental site trophoblastic tumor (pstt) is a very rare variant of gestational trophoblastic tumor. it can occur after normal termination of pregnancy or spontaneous abortion and ectopic or molar pregnancy. there is a wide range of clinical manifestations from a benign condition to an aggressive disease with fatal outcome. one of the most important characteristics of pstt, unlike other forms o...

conclusions most patients are referred for restaging and demonstrate evidence of regional or distant metastasis with significant value for further treatment planning. providing insurance coverage and familiarizing referring physicians about appropriate indications of this relatively new diagnostic modality will be to the best interest of head and neck cancer patients in long term. methods we re...

objective: the aim of the present study was to investigate the demographic and pathological aspects of adenoid cystic carcinomas (acc) in an iranian sample based on a 20-year archive review. materials and methods: in this descriptive study, tumors of the head and neck registered between 1980 and 2000 were evaluated and cases of acc were selected. patients' medical records and pathology reports ...

aim : the aim of this study was to compare prognostic factors between colon and rectal cancers. background : prognosis of colorectal cancer (crc) may depend on the anatomical site. patients and methods : a total of 1219 patients with crc diagnosis according to the pathology report of rcgld cancer registry, from 1 january 2002 to 1 october 2007, were entered into the study. demographic and clini...

stem cell based treatments are being increasingly explored for their possible potential to treat various cancers. mesenchymal stem cells believed to possess anti-tumor potential and are preferred for their properties like immune privileged nature, ability to migrate to the site of tumor and capability for multilineage differentiation. this tumor tropism property of mscs could be utilized to del...

a set of one hundred and twenty nine patients with known primary malignancy and suspected brain metastasis was reviewed in present study. the patients were selected among patients presented to the mri section of imam khomeini hospital or a private mri center in tabriz (iran). primary tumor site, clinical manifestations, number and site of lesions were identified in this patient population. the ...