<prompt> Seabrooks operation is done for:Parotid duct fistulaThyroglossal fistulaThyroglossal cystBranchial fistula  <response>: Ans. a Parotid duct fistulaRef: SRB 4th edition Page 438Causes of Parotid Fistula: Rupture of parotid abscess Incision and Drainage of Parotid abscess by an inadvertent incision Penetrating trauma After Superficial Parotidectomy.Based on the External opening the symptoms happen: External fistula is arising from gland - it closes spontaneously External fistula is arising from Duct - it produces outpouring of saliva and wont heal.Diagnosis: SialographyTreatment: Newman and Seabrooks operation-reconstruction of duct 