Ovarian serous neoplasms can have morphologic overlap with malignant mesothelioma. The distinction is clinically important, yet most studies have failed to identify immunostains that reliably distinguish these 2 tumor types. Recently, transcription factor PAX8 was shown to be a sensitive and relatively specific marker for Müllerian tumors. In addition, some studies suggest that h-caldesmon is s...

I am Giovanni Liguori, from Department of Urology, University of Trieste, Italy. We wrtite to you to discuss the malignant mesothelioma of the tunica vaginalis. Malignant mesothelioma most often involves the pleural or peritoneal cavity and exposure to asbestos is a wellknown risk factor for its development [1]. Most patients seek medical attention after they note a scrotal swelling during the ...

The diagnosis of malignant mesothelioma in serosal effusions continues to be a major challenge because some of its cytomorphological features closely resemble adenocarcinomas. Immunohistochemistry is a valuable tool in the differentiation of epithelioid mesothelioma from metastatic adenocarcinomas. However, no single antibody has demonstrated absolute sensitivity or specificity. In this study, ...

Overview Mesothelioma is a rare cancer that is estimated to occur in approximately 2500 people in the United States every year.1,2 These NCCN Clinical Practice Guidelines in Oncology (NCCN Guidelines) focus on malignant pleural mesothelioma (MPM), which is the most common type; mesothelioma can also occur in other sites (e.g., peritoneum, pericardium, tunica vaginalis testis). The disease is di...

Pleural malignant mesothelioma is an uncommon neoplasm usually associated with asbestos exposure. The increasing incidence of malignant mesothelioma cases involving individuals with low levels of asbestos exposure suggests a complex carcinogenetic process with the involvement of other cofactors. Cytogenetic studies revealed the complexity of the genetic changes involved in this neoplasm reflect...

OBJECTIVE To determine the ultrastructural features of diffuse malignant pleural mesothelioma cells in cytologic specimens from pleural effusions. STUDY DESIGN We retrospectively studied 35 pleural effusions: 12 diffuse malignant pleural mesotheliomas (8 epithelial type, 4 biphasic type), 12 pulmonary adenocarcinomas and 11 cases of reactive mesothelial cells. RESULTS In the cytoplasm, reac...

STUDY OBJECTIVES Pleural fluid cytology and non-image-guided Abrams or Cope biopsies have sensitivities of approximately 30% for detecting malignant mesothelioma, and thoracoscopic biopsy has a sensitivity of approximately 90%. The difference between these two probably relates to obtaining adequate tissue. The use of immunohistochemical stains allows a firm diagnosis to be made from relatively ...

Primary malignant pericardial mesothelioma is an exceptionally rare tumor, and making an antemortem diagnosis of this disease is notoriously difficult. We herein report the case of a 61-year-old woman with pericardial mesothelioma who presented with shortness of breath and peripheral edema of the lower limbs. Chest computed tomography (CT) showed an anterior mass and thickened pericardium with ...

Mesothelioma is usually diagnosed in people over the age of 50 with large history of asbestos-related exposure. It is frequently located in pleural cavity, peritoneum, and pericardium. At the testicles the mesothelioma had been reported first in 1957 like a malignant non-germ-cells tumor. The objective is to present two case reports of benign testicular mesothelioma and review of the literature.

Descriptions of diffuse malignant mesothelioma date from the nineteenth century' but it was not until 1960 that Wagner et al2 described a series of cases of pleural mesothelioma from South Africa and linked them to crocidolite asbestos exposure. Malignant mesotheliomas may arise from the pleura, peritoneum, and pericardium and all may be associated with asbestos exposure. Malignant mesothelioma...