Viabilidad del adipocito a diferentes presiones lipoaspiradas y centrifugadas / Adipocyte viability at different lipoaspirated and centrifuged pressures

El transplante de tejido graso ha sido el ideal para recomponer la forma y función de la Cirugía Plástica. La mayoría de los investigadores cree que la grasa, como tejido autólogo, puede ser considerado como el ideal, ya que es un tejido abundante y fácilmente disponible, de bajo costo y se puede recolectar de manera fácil y repetidamente. Realizamos un estudio histológico del adipocito a diferentes presiones de lipoaspirado y posterior centrifugado para demostrar la supervivencia del adipocito.

Fat transplantation has been the ideal to rebuild the form and function of fat graft in Plastic Surgery. Most researchers believe that fat, as an autologous tissue, can be considered as the ideal, because it is an abundant and readily available tissue, low cost and it can be recollected easily and repeatedly. We made an histological study of the adipocyte at diff erent liposuction pressures and later centrifugation to demonstrate the adipocyte survival.

Reconstrucción de labio con colgajos combinados: a propósito de un caso / Reconstruction of lip flap combined: a proposal of a case

Los labios comprenden una estructura móvil, formada por una capa muscular cubierta externamente por piel, internamente por mucosa y entre ambas una zona de transición, el bermellón. Debido a su ubicación, el labio inferior recibe radiaciones actínicas directamente, y ésta es la causa por la cual la incidencia de tumores es mayor que en el labio superior. Los labios desempeñan importantes funciones, por lo que la reconstrucción ofrece un gran desafío al cirujano plástico, el cual debe conservar tanto la función como el aspecto estético. Se presenta paciente de sexo masculino, 62 años, que presentaba carcinoma espinocelular de labio inferior, ulcerado, fondo granulante, bordes evertidos, duropétrea, de 3 cm, que afectaba el 70 % del labio e incluía la comisura derecha, sin adenopatías palpables, de 3 años de evolución.

Lips comprise a mobile structure, composed by a muscular layer covered by skin in the outside and mucous in the inside. Between covers there is a transition zone, the vermillion. Due to its localization, the lower lips is exposed to direct sunlinght radiation, and that is the main reason why it has a higher incidence in skin malignancies than the upper lip. Lip reconstruction after excision of malignancies is a challenge for the Plastic Surgeon, mainly because of the important functions of the mouth. The goal is to remain the preservation of those functions as well as restorting the aesthetic unit aspect. A 62 years old male is presented. The patient acussed a history of the tumor, a squamus cell carcinoma of the lower lip, of 3 years. At the admission, the patient showed a 3 cm. firm tumor involving 70 % of the lower lip, including the right commissure. An ulcer with granulation tissue and raised outlining was evident. No local or regional adhenopathies were found at the moment of the admission.