[Pulmonary infarction associated with bronchogenic carcinoma]

Area of Science:

• Pulmonology
• Oncology
• Radiology

Background:

• Bronchogenic carcinoma is a common lung malignancy.
• Pulmonary infarction is a potential complication of lung cancer.
• Radiopathological correlation is crucial for diagnosis.

Observation:

• Four cases of bronchogenic carcinoma with pulmonary infarction were analyzed.
• Infarcts associated with squamous cell carcinoma were often obscured on radiographs.
• Infarcts in adenocarcinoma and large cell carcinoma were visible, typically peripheral and round/polygonal.

Findings:

• Pulmonary artery, pulmonary vein, or bronchial wall invasion by the tumor likely causes infarction.
• Rapid appearance of peripheral opacities aids in distinguishing infarcts from intrapulmonary metastases.
• Specific radiographic features of infarcts were noted for adenocarcinoma and large cell carcinoma.

Implications:

• Pulmonary infarction should be suspected in lung cancer patients with new, peripheral opacities.
• Early recognition aids in timely diagnosis and management of bronchogenic carcinoma complications.
• Radiographic findings can help differentiate infarcts from tumor spread.