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On the left three different patients with lung cysts.
From left to right: Lymphangiomyomatosis, LIP and Langerhans
patients with lung ... #Clinical #Diagnosis ... #Radiology #CTChest ... #Cystic #Comparison ... Histiocytosis #RadiologyAssistant
Multiple masses
The differential diagnostic list of multiple masses is very long.
The most important diagnoses are listed
The differential diagnostic ... most important diagnoses ... #Management #Radiology ... #Lung #Multiple ... #Differential #RadiologyAssistant
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
result in decreased lung ... - Emphysema - Lung ... #Diagnosis #Radiology ... Differential #Diagram #Comparison ... Emphysema #SignetRing #RadiologyAssistant
Persistence of clinically relevant viruses on dry inanimate surfaces

Most common viruses persist on surfaces for days
The novel coronavirus ... days to 3 months Coronavirus ... How long do nosocomial ... viruses #surfaces #infectiousdiseases ... #diagnosis #table
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
Upper lung zone ... Pulmonary edema #Diagnosis ... #Radiology #Pulmonary ... #Upper #Lower #RadiologyAssistant
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Differential diagnosis ... LIP #Clinical #Diagnosis ... #Radiology #CTChest ... #Differential #Comparison ... #Table #RadiologyAssistant
Comparison of Tropical Viruses - Zika, Dengue and Chikungunya
 • Zika Virus 
 • Dengue Virus
Comparison of Tropical ... • Dengue Virus ... #Viruses #Comparison ... #diagnosis #microbiology ... #infectiousdiseases
More than 100 entities manifest as diffuse lung disease.
Fortunately only about 10 of these account for
of all diffuse lung ... different lists of diagnoses ... 80 - 90% of all diagnoses ... #Diagnosis #Radiology ... Mnemonic #HRCT #RadiologyAssistant
There is a hydropneumothorax.
Notice the air-fluid level (blue arrow).
The upper lobe is still attached to the
There is a lung ... with a cystic lung ... is a possible diagnosis ... #Clinical #Radiology ... Lymphangioleiomyomatosis #LAM #RadiologyAssistant
Tree-in-bud
In centrilobular nodules the recognition of 'tree-in-bud' is of value for narrowing the differential diagnosis.
Tree-in-bud describes
the differential diagnosis ... identified in the lung ... #Diagnosis #Pathophys ... #Radiology #Pulmonary ... TreeInBud #Diagram #RadiologyAssistant