This maneuver is achieved by having the patient elevate both arms until they touch the sides of the face

This maneuver is achieved by having the patient elevate both arms until they touch the sides of the face. A positive Pemberton’s sign is marked by the presence of facial congestion and cyanosis, as well as respiratory distress after approximately one minute… the sign is used to evaluate SVC obstruction due to various causes like
#Causes​ are :-
*Bronchogenic Carcinoma.
*Lymphoma.
*Retrosternal Goiter.
*Mediastinal mass.