@article{sampaio_martin_queiroz_bernardes filho_2018,  title={A rare cause of acute abdomen in an elderly patient},  volume={64},  ISSN={0104-4230},  url={https://doi.org/10.1590/1806-9282.64.08.670},  DOI={10.1590/1806-9282.64.08.670},  number={8},  journal={Revista da Associação Médica Brasileira},  publisher={Associação Médica Brasileira},  author={Sampaio, Rafael and Martin, Andreia and Queiroz, Rodolfo and Bernardes Filho, Fred},  year={2018},  month={Aug},  pages={670–671} }