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Case Reports
. 2012 Feb;4(1):83-7.
doi: 10.3978/j.issn.2072-1439.2011.04.05.

Psoas muscle metastases in non-small cell lung cancer

Jonathan B Strauss  1 , Anand P Shah, Sea S Chen, Benjamin T Gielda, Anthony W Kim
Affiliations
Case Reports

Psoas muscle metastases in non-small cell lung cancer

Jonathan B Strauss et al. J Thorac Dis. 2012 Feb.

Abstract

Lung cancer is the leading cause of cancer-related death in the U.S. and often spreads via lymphatics or through hematogenous metastasis to the brain, bone and adrenal glands. Isolated metastases to skeletal muscle, including the psoas muscles, are very uncommon. The present report is a case series of three patients with psoas metastases from non-small cell lung cancer (NSCLC) and a review of the relevant literature. Three patients presented with psoas muscle metastases from NSCLC detected on diagnostic imaging. All patients were treated with radiotherapy to the psoas muscle, and two patients were treated with curative intent on an oligometastatic paradigm. Radiotherapy to the psoas muscle was effective and well tolerated.

Keywords: carcinoma; lung; metastases; psoas muscle.

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Conflict of interest statement

No potential conflict of interest.

Figures

Figure 1.
Figure 1.. CT images in coronal (upper left) and axial (lower left) cuts paired with PET/CT fused images in coronal (upper right) and axial (lower right) cuts. Both the thoracic primary and the left psoas metastasis can be clearly identified in the PET/CT fusion.
Figure 2.
Figure 2.. An axial section of the treatment planning CT scan. The green colorwash represents the gross tumor. Radiation isodose lines are described in the key in the upper left.
Figure 3.
Figure 3.. An axial section of a CT scan (left) and a paired axial section of a PET scan (right). The white arrow points to the site of metastatic disease in the left psoas muscle.
See this image and copyright information in PMC

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