Mixed testicular tumors are of great interest both clinically and pathologically. Being in most cases benign neoplasms, they sometimes give rise to metastases, some subjected malignant transformation, so that their timely recognition is particular value. In the pathological anatomical sense these neoplasms relation microscopic structure, often extremely complex histogenesis.

Synchronous cancer is referred to two or more histological distinct malignancies diagnosed during the same hospital admission. Globally more than 1 million people get colorectal cancer yearly resulting in about 0.5 million deaths. Vulvar cancer is the fourth most common gynecologic cancer (following the corpus uterine cancer, cancer of ovary and cervix) and comprises only 4 percent of malignanc...

Ovarian cancer is the most lethal gynecologic malignancy. The surface epithelial tumor is the most common type of ovarian cancer. Among these, the mucinous tumors account for 10-15% of ovarian tumors. Mucinous ovarian tumors are among the most difficult ovarian neoplasms for surgical pathologists to interpret. Mucinous tumors sometimes coexist with other surface epithelial tumors. Therefore, ma...

Thymomas and thymic carcinomas are rare mediastinal neoplasms arising from epithelial cells, the presence of synchronous or metachronous primary in a single patient is an extremely event. Thymoma patients appear to have inherent predisposition toward developing additional neoplasms. This additionally presents diagnostic challenge, revealing importance multidisciplinary expertise management thes...

The discovery that certain tumors may be in duced in certain species by viruses led to attempts to transmit mammalian tumors by injection of cell-free preparations. Taylor and co-workers (7, 8) claimed success with such material, but others failed to corroborate their findings (†̃2, 9). We are aware of no previous report of transmission of a mammalian neoplasm by injection of isolated cytoplas...

The word “cancer” is perhaps the most feared word in our language. This is largely due to the aggressive nature of this disease, but also because so much is yet unknown about this disease. This lecture will provide an overview of our current understanding of cancer, or more generally, neoplasia. Neoplasia can be defined as a clonal proliferation of cells with somatic genetic alterations and abe...

background: myeloproliferative neoplasms (mpns) are clonal malignant diseases that represent a group of conditions including polycythemia vera (pv), essential thrombocythemia (et) and primary myelofibrosis (pmf). the aim of this study was to evaluate possible correlations between jak2v617f allele burden and clinicohematologic characteristics in iranian patients with mpns. we also aimed at deter...

the causes and situation of exudative pleural effusion vary from one area to another. a cross-sectional study was conducted on 327 patients with exudative pleural effusion in south khorasan province (iran). the patients were older than 12 years and comprised 172 (52.6%) males and 155 (47.4%) females. the study commenced in 2007 with seven years duration. the light’s criteria were used to define...