Cannonball metastases - testicular choriocarcinoma

Case contributed by Zemar Vajuhudeen
Diagnosis certain

Presentation

Presenting with cough and shortness of breath, on a background of a recently diagnosed testicular mass

Patient Data

Age: 35 years
Gender: Male

Multiple, large, well-circumscribed lesions are seen in the lung parenchyma bilaterally.

Multiple well-circumscribed rounded pulmonary nodules of varying sizes are seen scattered in all lobes, with a characteristic cannon-ball appearance. Large left-sided anterior mediastinal mass also noted.

Case Discussion

Radical orchiectomy of the right-sided testicular mass was performed. Histological analysis confirmed pure choriocarcinoma. 

Pulmonary metastases of choriocarcinoma have a characteristic appearance, colloquially referred to as cannonball lesions.

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