Sympathetic nerve involvement with mesothelioma of the pleura

Hemifacial Hyperhidrosis in a Patient With an Apical Non–Small Cell Lung Cancer

“…Hyperhidrosis caused by a comorbid condition, also known as secondary hyperhidrosis , has been the focus of about 3 dozen case reports over the past 70 years . Most commonly, these findings have been reported in the context of mesothelioma, often affecting multiple dermatomes and usually involving the thorax . Symptoms are typically reported as occurring ipsilateral to the tumor; however, contralateral dysfunction has also been described .…”