Phrenic nerve palsy in a patient of Churg Strauss syndrome and mononeuritis multiplex.

Neurological manifestations like mononeuritis multiplex are seen commonly in patients with Churg Strauss syndrome. Cranial nerve involvement and central nervous system involvement are also reported, although infrequently. Phrenic nerve involvement has not been reported so far. We report a patient with Churg Strauss syndrome who presented with mononeuritis multiplex and developed left-sided phrenic nerve palsy subsequently.