[Treatment patterns in advanced breast cancer with anthracycline and taxanes and their costs in three public hospitals of Mexico].

Objectives: In Mexico, breast cancer is the second leading cause of cancer mortality among females. For patients with advanced breast cancer (ABC) resistant to anthracyclines and taxanes (AT), there are limited treatment options. There is a scarcity of data regarding clinical management of this population and treatment costs at this stage of the disease.

[Current therapeutic advances in the treatment of non-Hodgkin lymphoma].

Lymphoma is a lymphoid cell cancer that originates in lymphoid tissues. Non Hodgkin (NHL) type represents 90% of cases. In Mexico, NHL constitutes the third most common cancer in males and the sixth among females.

Prevalence of iron, folate, and vitamin B12 deficiency anemia after laparoscopic Roux-en-Y gastric bypass.

Background: One of the most common bariatric operations is the laparoscopic Roux-en-Y gastric bypass (LRYGBP) in which the gastric capacity is restricted and the absorption by the small intestine is reduced. The objective of this study was to evaluate the incidence of iron, folate, and vitamin B12 deficiency anemia in patients undergoing LRYGBP.

Patients And Methods: Clinical records of 30 patients who underwent LRYGBP between July 2003 and January 2005 and had a minimum follow up of 24 months at our outpatient clinic were included.

[Ten year experience with ocular lymphomas and ocular adnexae lymphomas].

Background: Ocular lymphomas and ocular adnexae lymphomas (OL and OAL) constitute 7-8% of all extranodal lymphomas.

Objective: Describe the clinical, morphologic and immunophenotypic characteristics of OAL seen in our hospital.

Material And Methods: Retrospective analysis of patient records with OL and OAL between July 1994 and July 2005.

[Usefulness of bone marrow microscopic examination in HIV-infected patients with pancytopenia].

Introduction: The role of bone marrow examination in the diagnosis of prolongedfever in HIV infected patients, has been well established, but the importance of the morphological and etiological analysis, obtained in patients with coexisting pancytopenia, has not been adequately described.

Materials And Methods: In a prospective study, we recruited 31 HIV-infected patients with coexisting pancytopenia, with or withoutfever. Bone marrow examination was performed in all cases.

[Hematopoietic stem-cell transplantation in aplastic anemia].

Severe aplastic anemia is a rare syndrome characterized by bone marrow failure with cytopenias and hypocellular bone marrow biopsy (usually 10-15%), without blasts or myelodysplasia. The first choice treatment for these patients is allogeneic bone marrow transplantation from a sibling matched for HLA-A, HLA-B and HLA-DR. Unfortunately only 30% of patients have an HLA-matched sibling (a 25% chance per sibling).

[Acquired immunodeficiency syndrome-related lymphoma: 1. Course during the 20 years of the epidemic. 2. The experience at the Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán: 1986-2003].

The goal of this presentation is the description of the epidemiologic evolution and changes in natural history of the human immunodeficiency virus infection (HIV) epidemic itself and its relation with the acquired immunodeficiency syndrome-related lymphoma (ARL). We have started with the description of the world's state of the HIV epidemic, its features since the first case report in the United States of America in 1981, through the peak of new diagnoses in 1993 until the event that changed the natural history of the disease: the era of the widespread use of the highly active antiretroviral therapy (HAART), introduced in 1995 in the world and in 1997 in our country. The widespread introduction of HAART led to dramatic reductions in AIDS related mortality and morbidity throughout the developed world with a marked fall in the incidence of the major opportunistic infections in AIDS.