21st European Congress of Pathology Istanbul, Turkey, September 08-13, 2007 http://www.ecp2007istanbul.org/ Slide Seminar 5, September 10th New and Controversial Entities of the New WHO Classification of Endocrine Tumors
Chairpersons: P. Komminoth (Switzerland), G. Rindi (Italy)
Clinical History This 36 year old woman had a thyroid nodule detected on her annual physical examination. She was asymptomatic and had no clinical features of hypo- or hyperthyroidism. Thyroid function tests were within the normal range and no anti-thyroid antibodies were identified. Ultrasound examination identified a 3 cm isoechoic nodule in the right lobe and needle aspiration biopsy was read as “thyroid follicular cells present”. The patient was sent for right thyroid lobectomy.
The specimen consisted of a lobe of thyroid that measured 5cm SI x 4 cm ML x 3.2 cm AP. On section the mid-lobe contained a homogeneous tan to brown well-defined nodule that measured 3.2 cm SI x 3 cm ML x 2.5 cm AP. There was central cystic change and hemorrhage. The surrounding thyroid was grossly unremarkable.
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