Mandibular Osteomyelitis
History: 60 year old female status post oral surgery one month ago presents with jaw pain. This patient turned out to have chronic actinomyces osteomyelitis of the mandible with bony sequestrum and fistula formation.
Bronchopleural Fistula – CT
History: 65 year old male with a chronic right sided hydropneumothorax for 3 years after spontaneous pneumothorax. This patient had a chronic, non-remitting hydropneumothorax, which did not resolve even after the placement of the bronchial valve. This is concerning for a bronchopleural fistula. A bronchopleural fistula is simply defined as an abnormal connection between […]
Rheumatic Lung Disease
History: 50 year old male with a history of rheumatoid arthritis presents with sudden onset right sided chest pain, shortness of breath, and hypoxia. Given the history of rheumatoid arthritis and nodularity of the visceral pleura, this is likely a case of spontaneous pneumothorax secondary to a cavitating rheumatoid nodule. The most common lung abnormality […]
Cavitating Lung Mass
History: 65 year old male with chronic lymphocytic leukemia presents with cough and left sided chest pain. The differential for cavitating lung mass is wide, including neoplasms such as non-small cell lung cancer (NSCLC), lung metastases, lung abscess, mycobacterial pneumonia, fungal pneumonia, and septic pulmonary emboli. This patient underwent bronchoscopy which turned out to be […]
Pneumonia – Hospital Acquired Pneumonia versus Community Acquired Pneumonia Pathogens
History: 40 year old man with 1 week history of productive cough and fevers. This is a classic case of lobar pneumonia, which is most commonly bacterial in origin. Hospital acquired pneumonia is commonly caused by: Staphylococcus Aureus, anaerobes, and gram negative organisms. Community acquired pneumonia is commonly caused by: Pneumococcus, mycoplasma, viruses, and not […]
Interstitial Lung Disease – UIP
History: 60 year old male with history of diabetes and hypertension presents with chronic and acutely worsening shortness of breath. The differential for honeycombing pattern is wide and includes entities such as usual interstitial pneumonia (UIP) and nonspecific interstitial pneumonia (NSIP), among others. The pattern implies end stage lung disease. The diagnosis in this case […]
Pulmonary Alveolar Proteinosis – Differential Diagnosis of Crazy Paving Pattern
History: 50 year old male with diabetes, hypertension, obstructive sleep apnea, and hyperlipidemia presents with 1 week history of hemoptysis. The differential for crazy paving pattern is wide, however, classically it is seen with pulmonary alveolar proteinosis, which was the diagnosis in this case. The differential diagnosis for crazy paving pattern is as follows: 1. […]
Pneumothorax
History: 65 year old male with a history of chronic lymphocytic leukemia presents with left sided chest pain, shortness of breath, and hypoxia after a CT-guided biopsy of a left lung mass. This is an iatrogenic pneumothorax in a patient status post lung biopsy. This patient had a cavitary lung mass.