Correct!
3. Hamartoma
Infectious etiologies, especially fungal infections, and possibly tuberculosis, are certainly considerations when a new nodule becomes apparent at chest imaging. Among the differential diagnostic considerations listed, hamartoma is unlikely to account for the new nodule as such lesions grow slowly, and the nodule would probably be visible on the chest radiograph performed one year earlier. Bronchogenic malignancy is overall unlikely when chest radiography just over one year earlier showed normal findings, but a rapidly growing cancer remains possible. An isolated metastatic lesion is certainly a possibility given the patient’s recent urologic malignancies, although the upper lobe location is atypical and both malignancies were localized.
Which of the following represents an appropriate next step for the patient’s management? (Click on the correct answer to be directed to the fifth of fourteen pages)