@article{Mollica_Maffucci_Lavoretano_Rea_Cerqua_Aronne_Bianco_Perrotta_2019, title={Non-small cell lung cancer presenting as "psoas muscle syndrome": a case report}, volume={89}, url={https://www.monaldi-archives.org/macd/article/view/1012}, DOI={10.4081/monaldi.2019.1012}, abstractNote={<p>Lung cancer is the leading cause of cancer-related death worldwide and majority of patients are diagnosed in advanced/metastatic disease stage. Sites of distant metastases mainly include contralateral lung, lymph nodes, brain, bones, adrenal glands and liver; skeletal muscles metastases (SMMs) are less common. Psoas muscle and diaphragm metastases are mainly found during autopsy, as their involvement commonly is asymptomatic. We report a case of a 60-year-old female, suffering from non-small cell lung cancer (NSCLC), with refractory lower back pain, as expression of malignant psoas syndrome (MPS). MPS is a rare and difficult-to-treat cancer-pain syndrome, unresponsive to majority of analgesic therapy, related to psoas muscle metastasis; it is usually caused by different tumors such as uterus, ovary, bladder, prostate, colon-rectum, lymphoma, melanoma and sarcoma and represents an uncommon finding in NSCLC patients. </p>}, number={1}, journal={Monaldi Archives for Chest Disease}, author={Mollica, Mariano and Maffucci, Rosalba and Lavoretano, Sabrina and Rea, Gaetano and Cerqua, Francesco Saverio and Aronne, Luigi and Bianco, Andrea and Perrotta, Fabio}, year={2019}, month={Apr.} }