Horner's Syndrome Occurring with Spontaneous Pneumothorax

Abstract
INTERRUPTION of the sympathetic pathways anywhere in their course from the hypothalamus to the ocular orbit results in Homer's syndrome and is manifested by homolateral miosis, ptosis of the upper lid, minimal enophthalmos and facial flushing.1 Anhidrosis occurs if the lesion is distal to the superior cervical ganglion.2 The syndrome usually results from injury to the sympathetic tract by tumors, trauma, Central-nervous-system disease, lymphadenopathy and vascular lesions.2 We recently observed a patient with Homer's syndrome that apparently resulted from a spontaneous pneumothorax. The disappearance of the syndrome after re-expansion of the lung supports this conclusion. We were unable to learn . . .

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