Angiosarcoma of the thyroid

We report a case of 60-year-old man with history of 1 month
rapidly enlarging neck mass in the thyroid region. Ultrasound examination and CT scan showed resistance arising from the left
thyroid lobe. FNAC revealed necrotic tumor mass without any cytological specification. Because of the clinical findings, a
total thyroidectomy was indicated. The surgery was complicated by invasion of the tumor mass into the surrounding tissues.
Therefore, only left side hemithyroidectomy was performed. Histopathology including histochemistry proved positive staining
for Factor VIII, Fasciin, and CD31 in tumor cells. In this case, adjuvant oncological treatment was planned, but the patient
died because of massive bleeding from the tumor mass. The histological diagnosis of thyroid hemangiosarcoma ...