Linfoma renal primario

Linfoma no Hodgkin y aparato urinario: A propósito de un caso

“…En cuanto a la epidemiología los linfomas suelen afectar al aparato urinario en las edades medio-avanzadas de la vida, con predominio en los varones en la mayoría de las series 4 . En los últimos años se ha descrito una mayor incidencia de las neoplasias linfoides en los pacientes afectos por SIDA y en los transplantados, como consecuencia de su inmunodeficiencia 5,6 .…”

“…Se ha especulado sobre un posible origen de la neoplasia a partir de los ganglios del seno renal o de la red linfática de la cápsula renal con una posterior invasión del parénquima renal a través de unas, a modo de cadenas de células 4 .…”

“…La arteriografía suele comprobar tumores poco vascularizados con rara afectación vascular intraluminal 4,6 . Algunos autores no consideran necesaria la arteriografía una vez realizada la ecografía y la TAC 9 .…”

Malignant lymphoma occurring simultaneously in the urinary bladder wall and bilateral renal parenchyma: A case report

“…Extranodal lymphoma originating in solid organs, accounts for one-third of all cases of NHL, and often involves the kidneys (13). By contrast, primary renal lymphoma (PRL) is a rare disease, the existence of which is still debated, since the kidney is devoid of lymphatic tissue (14)(15)(16). It has been proposed that PRL may originate in the lymph nodes of the renal sinus or in the lymphatic network of the renal capsule, and that it forms cords of cells that penetrate the renal parenchyma (16).…”

“…By contrast, primary renal lymphoma (PRL) is a rare disease, the existence of which is still debated, since the kidney is devoid of lymphatic tissue (14)(15)(16). It has been proposed that PRL may originate in the lymph nodes of the renal sinus or in the lymphatic network of the renal capsule, and that it forms cords of cells that penetrate the renal parenchyma (16). There is a consensus that the criteria for PRL should include: Renal failure as the initial presentation; enlargement of the kidneys without obstruction, and also without other organ or nodal involvement; absence of other causes of renal failure; a diagnosis made by renal biopsy; and rapid improvement of renal function following chemotherapy.…”