ABSTRACT
La condición de inmunosuprimido aumenta el riesgo de cáncer en trasplantados renales, en comparación a la población general. La mejor supervivencia de esta población en los últimos años ha convertido a las neoplasias y a la enfermedad cardiovascular en las principales causas de morbi-mortalidad. Presentamos el caso de un paciente trasplantado renal que desarrolló cuatro años después del trasplante una forma inusual de tumor mesenquimatoso, el angiomixoma agresivo, que requirió resección quirúrgica amplia.
The condition of immunosuppressed increases the risk of cancer in kidney transplant patients, as compared to the general population. The best survival of inmunosupressed patients in recent years has turned both neoplasms and cardiovascular diseases into the main causes of morbidity and mortality. We present the case of a renal transplanted patient who developed an unusual form of mesenchymal tumor such as the aggressive angiomyxoma, four years after the implant and requiring wide surgical resection.
Subject(s)
Humans , Male , Adult , Kidney Transplantation/adverse effects , Immunocompetence , Mesenchymoma/etiology , Myxoma/etiology , Magnetic Resonance Spectroscopy , Risk Factors , Immunosuppressive Agents/adverse effects , Mesenchymoma/surgery , Mesenchymoma/pathology , Abdominal Neoplasms/surgery , Abdominal Neoplasms/etiology , Abdominal Neoplasms/pathology , Myxoma/surgery , Myxoma/pathologyABSTRACT
Los tumores estromales del tracto gastrointestinal (GIST), aunque infrecuentes, son tumores mesenquimatosos importantes de origen mesodérmico. Macroscópicamente se presentan como una masa intramural submucosal, siendo los mas comunes dentro de los tumores mesenquimatosos. La forma maligna, típicamente agresiva y resistente al tratamiento, es afortunadamente rara. Un importante avance ha sido la caracterización del marcador oncogénico KIT y su relación a la patogénesis del Tumor Estromal Gastrointestinal. Sin embargo, recientes investigaciones han demostrado la génesis de los GIST que son KIT negativos. Por lo tanto, la positividad del marcador oncogénico KIT, si bien es altamente sensible, no es requerimiento indispensable para el diagnóstico de GIST. Presentamos nuestra paciente con un GIST del intestino delgado y negatividad al c-KIT(CD 117).
Gastrointestinal stromal tumors (GIST) are uncommon but important mesenchymal tumors of the Gastrointestinal Tract, defined as being of mesodermal origin. Macroscopically they present as intramural submucosal masses, being the most common mesenchymal tumors to arise from the gastrointestinal tract. The malignant form, typically aggressive and resistant to treatment, in fortunately rare. An important development has been the characterization of the oncogene marker KIT, and its relation to the pathogenesis of GIST. However recent research has shed light on the genesis of GIST that is KIT negative. KIT is highly sensitive for GIST (though not 100%) but is not a marker of malignancy or essential requirement to the diagnosis of GIST. We show a patient with a GIST of the small intestine, KIT- negative.