Recurrent Non Typhoidal Salmonella Infection of the Thyroglossal Duct Cyst in a Diabetic Patient - A Case Report

The occurrence of extra-intestinal Salmonella neck infections is uncommon, especially with non-typhoidal Salmonella (NTS). We report a case of non-typhoidal Salmonella infection of a thyroglossal cyst in a 78-year-old diabetic woman admitted with gastroenteritis along with a neck swelling. The ultrasound revealed a thyroglossal cyst and fine needle aspiration cytology (FNAC) was done. Culture of the aspirate grew Salmonella species enterica subspecies enterica serogroup C. The patient was treated with amoxicillin/clavulanic acid for 10 days on discharge. She was readmitted two months later with an increasing neck mass and FNAC was repeated. Culture of the aspirate grew Salmonella species enterica subspecies enterica serogroup C. She was treated with amoxicillin/clavulanic acid for 5 days on discharge. Extra-intestinal infections, though uncommon, should be considered among immune-compromised patients presenting with gastrointestinal symptoms caused by Salmonella species.