Tomás Álvaro

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PURPOSE Recent studies of Hodgkin's lymphoma (HL) have suggested that the presence of regulatory T cells in the reactive background may explain the inhibition of the antitumoral host immune response observed in these patients. This study aimed to assess the relevance of regulatory T cells and CTLs present in the background of HL samples in the prognosis of(More)
PURPOSE Recent molecular data have suggested that non-neoplastic cells are powerful modulators that may confer a selective advantage or disadvantage on the outcome of follicular lymphoma (FL) patients. PATIENTS AND METHODS The prevalence of the principal inflammatory and immune-infiltrated cells was measured immunohistochemically in the tissue of 211 FL(More)
The clinical, morphological, and immunohistochemical findings in six cases of ovarian endometrioid tumors (five endometrioid carcinomas and one carcinosarcoma) with a yolk sac tumor (YST) component are described. The age of the patients ranged from 31 to 73 years (average, 53), and only two patients were premenopausal. Two cases were stage Ia tumors, three(More)
Inflammatory myofibroblastic tumour (IMT) is a benign pseudoneoplastic proliferation, mainly developing in the lung and extremely rare in the larynx. A patient with a two-month history of dysphonia and a polypoid left true vocal fold tumour is presented. Histological and clinical knowledge of this lesion is important to exclude a misdiagnosis (e.g.(More)
Celiac disease is a highly prevalent condition frequently misdiagnosed because of heterogeneity of the clinical symptoms. It is well recognized that enteropathy-associated T-cell lymphoma is an uncommon lymphoma type linked to celiac disease; it has also been suggested that other types of lymphomas may be associated with celiac disease. Our aim was to(More)
BACKGROUND Statins, drugs used to treat dyslipidemia, may have anticancer properties. We have evaluated lymphoma risk associated with regular statin use in an international case-control study. METHODS This case-control study included 2,362 cases of incident B- and T-cell lymphoma from Czech Republic, France, Germany, Ireland, Italy, and Spain and 2,206(More)
Tumoral cells in Hodgkin lymphoma (HL) display an increased growth fraction and diminished apoptosis, implying a profound disturbance of the cell cycle and apoptosis regulation. However, limitations of molecular techniques have prevented the analysis of the tumor suppressor pathways and cell-cycle checkpoints. Tissue microarray (TMA) is a powerful tool for(More)
Surgical specimens from four patients with diffuse sclerosing papillary carcinoma of thyroid were examined by electronmicroscopy. In addition, immunohistochemical examination using a panel of monoclonal and polyclonal antibodies was carried out in order to investigate the expression of HLA-DR antigen, the presence of Langerhans' cells and the phenotypic(More)
Lymphomas are a heterogeneous group of immune-cell malignancies. Immunology-related conditions are among the few factors for which consistent evidence exists relating them to lymphoma risk. We used the data from the European case–control study Epilymph on 2,362 lymphoma cases and 2,458 controls to investigate associations between a medical history of(More)
γδ T cells represent a minor T-cell subset that is mainly distributed in mucosal surfaces. Two distinct lymphomas derived from these cells have been recognized: hepatosplenic γδ T-cell lymphoma (HSTL) and primary cutaneous γδ T-cell lymphoma (PCGD-TCL). However, whether other anatomic sites may also be involved and whether they represent a spectrum of the(More)