13 results
Reversed Halo Sign - Infectious and Non-Infectious Differential Diagnosis
Definition: A focal rounded area of GGO surrounded
Reversed Halo Sign ... Non-Infectious Differential ... complete ring of consolidation ... granulomatosis, Cryptogenic organizing ... pneumonia, Pulmonary
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
Differential diagnosis ... caused by streptococcus ... OP is organizing ... Diagnosis #Radiology #Pulmonary ... #CXR #Consolidation
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
Unknown • 6-7 cases ... Pneumonia - Clinical ... : • CXR: Peripheral ... , Pulmonary lymphoma ... #BOOP #pulmonary
It is very important to differentiate between acute consolidation and chronic consolidation, because it will limit
very important to differentiate ... diseases like organizing ... pneumonia (OP) ... Diagnosis #Radiology #Pulmonary ... #CXR #Consolidation
Based on the images alone, it is usually not possible to determine the cause of the
determine the cause ... Lobar pneumonia ... Pulmonary hemorrhage ... Organizing pneumonia ... #Radiology #CXR
Notice that there are multiple densities in both lungs.
The larger ones are ill-defined and maybe there
with multifocal consolidations ... multiple ill-defined masses ... dealing with the differential ... #Clinical #Radiology ... #CXR #Peripheral
Reverse Halo Sign
Defined as a central ground class opacity surrounded by a ring of dense consolidation
Differential
Reverse Halo Sign ... ring of dense consolidation ... Differential Diagnosis ... Other: Cryptogenic organizing ... pneumonia, Sarcoidosis
Differential diagnosis of the reversed halo sign (RHS). AIA, angioinvasive aspergillosis; AIS, adenocarcinoma in situ; COP,
Differential diagnosis ... of the reversed halo ... ; OP, organising ... ; PZ, pulmonary ... lesions, lobular consolidation
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Infections in HIV - Differential ... • CT: Halo sign ... dyspnea • Lobar consolidation ... factor • May cause ... Infections #HIV #AIDS #pulmonary
Radiographic appearances of pulmonary diseases in HIV/AIDS Patients
 • Diffuse Interstitial Infiltrates: Pneumocystis jirovecii, M.tuberculosis, Histoplasma
complex • Nodular/Masses ... Sarcoma • Focal Consolidation ... Bronchoalveolar cancer, Organizing ... pneumonia • Cavitary ... #diseases #differential