[Bronchogenic cysts. Importance of infection in adults. Study of 12 cases].

Background: Bronchogenic cyst is a rare congenital malformation and commonly located in the mediastinum and lung parenchyma.

Objective: To determine the clinical characteristics of the patients with diagnosis of bronchogenic cysts, their location and the infectious bacteria when the cysts are infected. The cases were collected from 1 January 2005 to 1 January 2013, in a third level hospital.

[Malignant mesothelioma risk factors: experience in the General Hospital of Mexico].

Background: Malignant mesothelioma is a neoplasm of bad prognosis, it is linked with asbestos contact, but there are cases without this antecedent.

Objective: To investigate the relationship of asbestos exposition and other factors with malignant mesothelioma.

Methods: Retrospective analysis of histologic confirmed cases of malignant mesothelioma, neoplasic familiar history, tobacco smoking, exposure to wood smoke and to asbestos, were annotated in a paired case/control study 1: 1-3 with logistic regression model to identify risk factors for OR.

Solitary fibrous tumor. Clinic and pathological study of 16 cases.

Background: Solitary fibrous tumor (SFT) is a localized fibrous mesothelioma and was originally described as a benign pleural lesion. It is a mesenchymatous lesion that has been found in different structures and tissues of the human organism. It originates from a stromal fibroblastic cell positive to CD4.

[Aggressive angiomyxoma of the vulva. Case report and literature review].

Aggressive angiomyxoma is a rare vulvovaginal, perineal or pelvic mesenchymal neoplasm with a marked tendency to local recurrence but does not metastasize. A case of an aggressive angiomyxoma of vulva in a 39-years-old women with an illness of one year prior to examination, with a slow and progressive growth of the left vulvar region, without other symptoms. During physical examination, a piriform tumor of 15x10 cm was found, located on the left labia majora, soft tissue dependent.

Mediastinal pleomorphic liposarcoma diagnosed by fine needle aspiration biopsy: a case report.

Background: Progress in radiology and pathology for diagnosing mediastinal tumors has R been made in recent decades, thanks to the use of fine needle aspiration biopsy (FNAB) guided by computed tomography, which has replaced mediastinoscopy and open biopsies.

Case: A 66-year-old male had a history o productive coughing with mucopurulent expectoration, progressive dyspnea, arthralgias, myalgias, astenia and adynamia for the previous 3 months. A CT scan and magnetic resonance imaging revealed a poorly limited tumor mass ofheterogeneous den sity in the anterior mediastinum.