perivascular epithelioid cell tumor (pecoma) is a rare mesenchymal tumor composed of immunohistochemically and histologically distinctive perivascular epithelioid cells. here, we report on the computed tomography (ct) and magnetic resonance imaging (mri) findings of ovarian pecoma with pulmonary metastasis. the tumor was visible as a multilocular hemorrhagic mass that encased the ovarian vessel...

Ribonucleotide reductase (RNR) catalyzes the rate-limiting step in nucleotide biosynthesis and plays a central role in genome maintenance. Although a number of regulatory mechanisms govern RNR activity, the physiologic effect of RNR deregulation had not previously been examined in an animal model. We show here that overexpression of the small RNR subunit potently and selectively induces lung ne...

The effects of a wide variety of social life factors on the mortality of five major malignant neoplasms, i.e. those of the stomach, lung (and trachea and bronchus), breast and uterus, and leukemias, in 46 prefectures in Japan were analyzed by stepwise regression analysis twice at a 5-year interval. The results indicated the following three predisposing factors for malignant neoplasms: rural res...

Secondary oral cavity neoplasms are rare. We describe a case of an indurated, nonulcerating gingival lesion in a 59-year-old nonsmoking man with no family history of lung cancer. The lesion was the presenting symptom of metastatic lung adenocarcinoma. Reviewing the literature, we find that primary lung cancer among men is one of the most common cancers to metastasize to the oral cavity. Renal a...

INTRODUCTION The analysis of premature deaths measured with years of life lost between the studied and referential populations helps to emphasize the social and economic aspect of a loss caused by deaths due to malignant neoplasms. The aim of the study was to analyze years of life lost by inhabitants of the Lodz province due to malignant neoplasms. MATERIAL AND METHODS The study material incl...

BACKGROUND AND OBJECTIVE Surgical resection is the preferred treatment in selected patients with pulmonary neoplasms. In older than 70 years or have compromised cardiopulmonary status or coexistent medical problems patients, radiofrequency ablation (RFA) may offer an alternative option. The aim of this study is to evaluate the therapeutic effects after RFA in 100 patients with pulmonary neoplas...

Birt-Hogg-Dubé syndrome (BHDS) is a rare autosomal dominant genodermatosis that presents as a clinical triad including follicular hamartomas, renal neoplasms and lung cysts associated with an increased risk of pneumothorax. FLCN gene defects have been identified as being responsible for BHDS. We herein report the case of a 67-year-old woman with the full-blown BHDS phenotype, characterized by s...

The amazing variety of primary neoplasms of the lung and the frequency with which they are encountered is appreciated more widely now than at any other period in the history of medicine. They were once thought by clinicians to be rare pathological curiosities, their antemortem diagnosis next to impossible, and treatment of them so unsatisfactory as to make a careful search for them a waste of t...