Radiographic Thrombus within the External Jugular Vein: Report of a Rare Case and Review of the Literature

Figure 1

Parotid tumor pathology. Smear and cell block section from FNA biopsy showing pleomorphic malignant cells ((a) Diff-Quick stain, ×600; (b) cell block, ×600). The tumor cells are positive for Cam 5.2 ((c) ×600) and negative for AE1/AE3, p63, and CK5/6. Melan A, androgen receptor, mammaglobin, S-100, CD45, CD3, CD20, and TTF1. The cytological features with immunostaining results support a high grade carcinoma.