title: Neck abscess associated with a piriform fossa sinus tract in an adult.
abstract: Perithyroidal inflammatory masses deriving from developmental remnants of the 3rd and 4th brancial pouches are rare. We report a case of an otherwise healthy 31-year-old man, who presented with fever and swelling of the left side of the neck. Neck ultrasound showed a displaced left thyroid lobe with induration of the strap muscles. Fine-needle aspiration biopsy revealed pus, positive for Staphylococcus aureus species. Antibiotic treatment led to rapid clinical improvement and reversal of imaging features, without the need for surgical intervention. This rare clinical entity should be always considered in the differential diagnosis of an inflammatory neck mass.
authors.affiliation: Department of Endocrinology, Hippokration General Hospital, Thessaloniki, Greece.
authors.forename: Fotini
authors.initials: F
authors.lastname: Adamidou
authors.forename: Panagiotis
authors.initials: P
authors.lastname: Anagnostis
authors.forename: Spyridon
authors.initials: S
authors.lastname: Karras
authors.forename: Marina
authors.initials: M
authors.lastname: Kita
mesh_terms: D000038:Abscess / Q000209:etiology* / Q000473:pathology; D000328:Adult; D000900:Anti-Bacterial Agents / Q000008:administration & dosage / Q000627:therapeutic use; D002939:Ciprofloxacin / Q000008:administration & dosage / Q000627:therapeutic use; D004359:Drug Therapy, Combination; D006801:Humans; D007013:Hypopharynx / Q000000981:diagnostic imaging; D008297:Male; D009333:Neck; D056144:Pyriform Sinus / Q000473:pathology*; D013203:Staphylococcal Infections / Q000175:diagnosis / Q000188:drug therapy / Q000382:microbiology; D013211:Staphylococcus aureus / Q000302:isolation & purification; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome; D014640:Vancomycin / Q000008:administration & dosage / Q000627:therapeutic use
chemical_list: D000900:Anti-Bacterial Agents; D002939:Ciprofloxacin; D014640:Vancomycin