19 results
Nodular pattern(2)
1. Sarcoidosis: nodules with perilymphatic distribution, along fissures, adenopathy.
2. TB: Tree-in-bud appearance in a patient
stage before the ... typical cysts appear ... #Clinical #Radiology ... #Pattern #Comparison ... #Table #RadiologyAssistant
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
Unknown • 6-7 cases ... - Clinical manifestations ... irregular lines, nodular ... , Pulmonary lymphoma ... #COP #BOOP #pulmonary
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
stage before the ... typical cysts appear ... #Clinical #Diagnosis ... #Radiology #Pulmonary ... #Table #RadiologyAssistant
High Attenuation pattern (2) 
1. Non specific interstitial pneumonitis (NSIP): ground glass with traction bronchiectasis, no
Cryptogenic organizing pneumonia ... Sarcoidosis end-stage ... #Clinical #Radiology ... HighAttenuation #Pattern #Comparison ... #Table #RadiologyAssistant
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Nodular LCH: - Sarcoidosis ... : 'signet ring sign ... central dot. - LIP #Clinical ... #Differential #Comparison ... #Table #RadiologyAssistant
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
diagnosis The table ... caused by streptococcus ... called cryptogenic (COP ... Diagnosis #Radiology #Pulmonary ... #RadiologyAssistant
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
• Pleuritic CP ... • CT: Halo sign ... , erythematous nodules ... factor • May cause ... Infections #HIV #AIDS #pulmonary
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
Low Attenuation Nodular ... , COP, Chronic Eos ... Sarcoidosis, NSIP, COP ... Antitripsyn Def • Cysts ... Scleroderma, End-Stage
Based on the images alone, it is usually not possible to determine the cause of the
determine the cause ... Lobar pneumonia ... (OP) - multiple ... in fact this is nodular ... #RadiologyAssistant
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
associated pulmonary ... patients with end-stage ... #Clinical #Diagnosis ... #Emphysema #Comparison ... #RadiologyAssistant