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Case Reports
. 2019 Jun 26;12(6):e228862.
doi: 10.1136/bcr-2018-228862.

Primary angiosarcoma of thyroid

Ananya Kondapalli  1 , Lucas Redd  2 , Lorraine DeBlanche  2 , Yin Oo  2
Affiliations
Case Reports

Primary angiosarcoma of thyroid

Ananya Kondapalli et al. BMJ Case Rep. .

Abstract

Mesenchymal origin of primary thyroid angiosarcomas (TAS) is extremely rare and comprises less than 1% of primary thyroid cancer worldwide. While TAS are most commonly occurring in the Alpine region, there are multiple reported cases of TAS in non-Alpine regions. Diagnosis of TAS is commonly made after thyroidectomy as cytologic diagnosis can be challenging due to paucity of cells, presence of necrosis and unawareness of the disease due to rarity. We report a case of primary TAS diagnosed by cytology in a 56-year-old man who presented with a sudden onset of left neck pain, swelling and haemoptysis. He was later noted to have suspicious nodules on both lobes of thyroid on ultrasound. Fine needle aspiration of thyroid nodules showed malignant epithelioid cells. The diagnosis of TAS was made based on positive endothelial markers such as thrombomodulin and CD31, with many pertinent negatives, including negative cytokeratins,thyroid transcription factor (TTF1), thyroglobulin, calcitonin and carcinoembryonic antigen (CEA).

Keywords: cancer intervention; endocrine cancer; thyroid disease.

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Conflict of interest statement

Competing interests: None declared.

Figures

Figure 1
Figure 1
Thyroid ultrasound showed an ill-defined right thyroid nodule with microcalcification and a left thyroid nodule with a ring-shaped macrocalcification.
Figure 2
Figure 2
Malignant epithelioid cells with prominent nucleoli on cell block (×400).
Figure 3
Figure 3
PET–CT scan with bilateral FDG avid lesions on both lobes of the thyroid. The initial standardized uptake values (SUV) of the tumour was 7.2 and it was increased to 10.8 on the delayed images.
Figure 4
Figure 4
Positive thrombomodulin (×200).
Figure 5
Figure 5
Positive CD31 (focal and weak) (×400).
Figure 6
Figure 6
Resolution of FDG avid lesions in thyroid on PET/CT obtained a month after the completion of chemotherapy.
See this image and copyright information in PMC

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