Endoscopic modified Lothrop procedure for repair of lateral frontal sinus cerebrospinal fluid leak.

Objective: To describe a previously unreported case of repair of a lateral frontal sinus cerebrospinal fluid leak, using the endoscopic modified Lothrop procedure.

Method: Case report of new technique, with reference to the world literature.

Results: An effective endoscopic, transnasal repair of a lateral frontal sinus cerebrospinal fluid leak was achieved in a 60-year-old man.