Introduction. Prolonged tracheal intubation can cause stenosis. In extensive lesions, they have performed transplants or prosthesis placement without good results. Transplantation frequently evolves with necrosis, delayed healing, and ischemia. The anterior segment of the tracheal wall was transplanted to preserve the vascular supply of the trachea. Objectives. Verify that the transplant of a previous patch of the trachea, allows to expand the tracheal lumen in its anterior part and overcome the problems derived from the complete transplant or the insertion of prosthesis and evaluate the viability, macroscopic and microscopic changes of the transplant in two groups of rabbits, one of which will receive treatment with immunosuppressants. Methods. Experimental, prospective, randomized and controlled study. We used 15 rabbits of exocriated strains. In 5, autotransplantation was performed to...

Pulmonary alveolar microlithiasis a rare disease whose main characteristic accumulation of calcium salts within the air cell, this due to the presence of a genetic mutation autosomal recessive. This entity is within the group of diffuse lung diseases and primary diagnosis is a challenge for health professionals. There is no treatment to date, has raised the use of bisphosphonate, steroids and bronchoalveolar lavage without reaching conclusive results. It is preferred to perform the transplant before the development of right ventricular failure for best results. The definitive diagnosis is histopathological. In Peru it has been poorly described this disease as the only report found no definitive histopathological diagnosis. We report a case diagnosed in the Department of Thoracic and Cardiovascular Surgery Hipolito Unanue National Hospital in Lima, Peru.