13 results
Causes of Hemoptysis - Differential Diagnosis Algorithm
Massive Hemoptysis (>I00 mL in 24 hours)
 • Malignancy
 •
of Hemoptysis - Differential ... Malformation Normal CXR ... Abnormalities • CHF ... polyangiitis / microscopic ... #Hemoptysis #Differential
There is a hydropneumothorax.
Notice the air-fluid level (blue arrow).
The upper lobe is still attached to the
Notice the air-fluid ... patient is a woman, lymphangioleiomyomatosis ... airways leading to pulmonary ... Clinical #Radiology #CXR ... #Pneumothorax #Lymphangioleiomyomatosis
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
symptomatology Differential ... polyangiitis, Microscopic ... • Labs: CBC, cr ... , anti-CCP • CXR ... Renal #Syndrome #differential
Non-Resolving Pneumonias: Etiologies
Unusual Infections:
 - Immunocompromised patients (e.g.: Mycobacterium, Aspergillosis, Nocardia)
 - Endemic Fungi (e.g.: Histoplasmosis,
polyangiitis, microscopic ... Others: - Pulmonary ... abnormalities (Pulmonary ... infarction/PE, CHF ... #differential
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
In the differential ... To differentiate ... without associated pulmonary ... usually contain air ... patients with lymphangioleiomyomatosis
Differentiation Syndrome in APML
Epidemiology:
 • Incidence: common in APL (2-48% depending on the study)
 • Triggers:
5 or elevated Cr ... common • Imaging: CXR ... - pulmonary opacities ... initiation • Differential ... sepsis), PE, DAH, CHF
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Blood cultures • CXR ... early disease) • CXR ... pneumonectomy if fail ... Lung #Abscess #pulmonary ... #differential #
There is a hydropneumothorax.
Notice the air-fluid level.
The upper lobe is still attached to the chest wall
Notice the air-fluid ... patient is a woman, lymphangioleiomyomatosis ... airways leading to pulmonary ... Clinical #Radiology #CXR ... #Pneumothorax #Lymphangioleiomyomatosis
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Physical stigmata of cor ... pulmonale, in advanced ... thickening, presence of air-fluid ... • Pulmonary artery ... #differential #
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis - Differential ... Vasculitis Differential ... Cerebrospinal fluid (CSF ... (PR3-ANCA)): Microscopic ... #Vasculitis #Differential