[Renal infarction in the evaluation of lumbar pain]. / El infarto renal en la valoración de dolores lumbares.

OBJECTIVE: We report the case of a young patient without known cardiovascular risk factors, complaining of lumbar colic pain due to renal infarction. METHODS: Differential diagnosis of lumbar colic pain must include some rare events. We performed a review of the current knowledge on the topic. RESULTS/CONCLUSION: The increasing difficulty in the diagnosis of these pathology lies on its clinical suspect, which can be clear when having cardiovascular risk factors. Its diagnosis, on a rare scenario, needs leucocytosis and LDH rising as suspicious indicators. Computed tomography, MRI, radionuclids and arteriography may confirm diagnosis. Treatment is based on thrombolytic therapy, anticoagulants and ontiagregants.