From the case:
Phrenic nerve palsy and metastases
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Chest x-ray demonstrates a soft tissue mass at the apex of the right lung, abutting the mediastinum medially. This is associated with marked elevation of the right hemidiaphragm, with no evidence of mediastinal shift of pleural fluid.
From the case:
Phrenic nerve palsy and metastases



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CT confirms the presence of the apical mass which is invading the mediastinum, and presumably involving the phrenic nerve resulting in a phrenic nerve palsy.
Case Discussion
Phrenic nerve palsy and apical pulmonary metastases from colorectal carcinoma.