Metastases to the thymus

Metastases to the thymus are rare, although they are probably under reported due to lack of symptoms. 

Pathology

Varied primary tumors have been reported to metastasize to the thymus ^1,2:

• breast cancer
• lung cancer
• ovarian cancer
• colorectal carcinoma
• gastric cancer
• prostate cancer
• testicular cancer
• thyroid cancer
• laryngeal cancer ³

Differential diagnosis

• mediastinal lymphadenopathy
• other anterior mediastinal masses