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Keywords:

  • Fine needle aspiration biopsy;
  • solitary fibrous tumor;
  • spindle cell neoplasm;
  • thyroid gland

Abstract

We report a case of solitary fibrous tumor of the thyroid gland in a 51-year-old man with pre-existing right recurrent laryngeal nerve paralysis from a congenital tracheoesophageal fistula repair as an infant. The left thyroid lobe was enlarged and soft. Fine needle aspiration biopsy via ultrasound guidance demonstrated a hypercellular aspirate composed of spindle cells with bland nuclear morphology. Given this histomorphology and immunohistochemical profile, the diagnosis of solitary fibrous tumor was considered and confirmed following left thyroid lobectomy. Laryngoscope, 2009