title: A unique presentation of ectopic thyroid, a case report.
abstract: BACKGROUND
  This case presents a painful ectopic thyroid, an unusual presentation, in an atypical location. The patient's history of an ingested fish bone, her acute presentation, and inconclusive imaging, made this case a diagnostic dilemma.
  
  
  METHODS
  61-year-old female presented with acutely worsening history of left throat pain and dysphagia after swallowing a fish bone. CT scan showed a foreign body in the anterior wall of the cervical esophagus. EGD studies were inconclusive. Surgical exploration identified and excised a multinodular cystic lesion without connection to esophageal lumen. Pathology described multinodular thyroid parenchyma with chronic inflammation and no evidence of malignancy. No foreign body was located.
  
  
  CONCLUSIONS
  Based on the patient's history, imaging, and acute presentation, an esophageal perforation with abscess formation was the most likely diagnosis. Surgical exploration was the necessary intervention for this patient's acute symptoms as both a diagnostic and therapeutic tool. The diagnosis of ectopic thyroid tissue from pathology of the excised cystic lesion was unexpected, as the location of tissue and the painful presentation are not typical characteristics of ectopic thyroid tissue. Management of the this case illustrates the dilemma faced in determining the appropriate work up for a patient, without compromising the patient's safety.
  
  
  CONCLUSIONS
  Though painful presentation and this case's location are rare, ectopic thyroid tissue should be included in the differential diagnosis of point tenderness with an associated lesion on imaging.
authors.affiliation: Texas Tech University Health Sciences Center, Amarillo 1400 S Coulter St., Amarillo, TX, 79106, United States. Electronic address: Erika.allen@ttuhsc.edu.
authors.forename: Erika
authors.initials: E
authors.lastname: Allen
authors.affiliation: Texas Tech University Health Sciences Center, Amarillo 1400 S Coulter St., Amarillo, TX, 79106, United States; Northwest Texas Healthcare System, 1501 S Coulter St., Amarillo, TX, 79106, United States.
authors.forename: Masoud
authors.initials: M
authors.lastname: Alzeerah
authors.affiliation: Texas Tech University Health Sciences Center, Amarillo 1400 S Coulter St., Amarillo, TX, 79106, United States.
authors.forename: Stevenson
authors.initials: S
authors.lastname: Tsiao
authors.affiliation: Northwest Texas Healthcare System, 1501 S Coulter St., Amarillo, TX, 79106, United States.
authors.forename: Nail
authors.initials: N
authors.lastname: Aydin
authors.affiliation: Texas Tech University Health Sciences Center, Amarillo 1400 S Coulter St., Amarillo, TX, 79106, United States; Northwest Texas Healthcare System, 1501 S Coulter St., Amarillo, TX, 79106, United States.
authors.forename: Subhasis
authors.initials: S
authors.lastname: Misra
keywords: Case report; Ectopic thyroid tissue; Exploratory laparotomy; Painful presentation; Periesophageal abscess