Microfilariae coexisting with a follicular lesion in thyroid aspirate smears in an uncommon case of a retrosternal thyroid mass, clinically presenting as malignancy

在罕见的胸骨后甲状腺肿块病例中，甲状腺穿刺涂片中发现微丝蚴与滤泡病变共存，该病例临床表现为恶性肿瘤。