<prompt> During sclerotherapy by endoscopy, following are complications except -Hepatic encephalopathyPerforationStenosisFibrosis  <response>: Hepatic encephalopathy as a complication of endoscopic sclerotherapy is unlikely whereas it is common after TIPSS. Complications of endoscopic sclerotherapy are : Esophageal ulceration - which may bleed and perforate Mediastinitis Pleural effusion Pulmonary edema Late strictures Ref : Sabiston 17e, p 1251 