Bronchoalveolar cell carcinoma

• Can present as nodular, diffure (rare) and multifocal
• Mucus creating which may mimic pneumonia.
• Absent lymphadenopathy
• Can have false negative on PET
• Not associated with smoking

• test

Subtypes include: Clara Cell, Tall Cell Epithelial and Type II Pneumocyte

Differential Diagnosis

• COP
• Eosinophillic pneumonia
• Recurrent pneumonia
• Alveolar proteinosis
• Lymphoma