Overlooked Pneumonia-Like Lung Cancer with Elevated Neutrophils and Typical Pneumonia Imaging findings

In middle-aged and elderly patients with a first diagnosis of lung infection, if the exudate shadow remains unabsorbed after aggressive empirical anti-infective treatment, the infection should be aggressively investigated for specific pathogens such as Mycobacterium tuberculosis, nontuberculous mycobacteria, fungi, adenoviruses, etc., and in addition to that, malignant lesions should also be investigated.