9 results
Reversed Halo Sign - Infectious and Non-Infectious Differential Diagnosis
Definition: A focal rounded area of GGO surrounded
Reversed Halo Sign ... Dermatomyositis, Lung ... granulomatosis, Cryptogenic ... 1min_idconsult #Reverse #Halo ... #Sign #Infectious
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
of interstitial lung ... Diagnosis: • Lung ... TBNA or Surgical lung ... COP DDX: • CAP ... ILD #diagnosis #management
Halo Sign on Chest CT
 • SPN or mass surrounded by a circumferential GGO
 • DDx:
Halo Sign on Chest ... mueormycosis, GPA ... .2016.12.033 #Halo ... #Sign #CT #Lung ... Pulmonary #diagnosis #radiology
COVID-19 Patterns of Lung Findings on Chest CT
1. Reverse Halo Sign
2. ARDS
3. Crazy-Paving Pattern
4. Bilateral Peripheral
19 Patterns of Lung ... Reverse Halo Sign ... Halo Sign 6. ... Organizing Pneumonia ... Pulmonary #ChestCT #radiology
Reverse Halo Sign
Defined as a central ground class opacity surrounded by a ring of dense consolidation
Differential
Reverse Halo Sign ... disease • Other: Cryptogenic ... organizing pneumonia ... #Sign #differential ... diagnosis #pulmonary #radiology
Differential diagnosis of the reversed halo sign (RHS). AIA, angioinvasive aspergillosis; AIS, adenocarcinoma in situ; COP,
of the reversed halo ... sign (RHS). ... in situ; COP, cryptogenic ... organising pneumonia ... Diagnosis #Pulmonary #Radiology
Atoll Sign (Reverse-Halo Sign) on Chest CT
 • Central GGO surrounded by a crescentic or circumferential
Atoll Sign (Reverse-Halo ... IFI, PJP, LG, GPA ... Atoll #Reverse #Halo ... #Sign #CT #Lung ... Pulmonary #diagnosis #radiology
Cryptogenic Organizing Pneumonia - Illness Script

PATHOPHYSIOLOGY: Unknown trigger, reversible inflammatory/fibroproliferative process. Polypoid fibroblastic aggregates that plug
Cryptogenic Organizing ... Males=Females SIGNS ... misdiagnosed as CAP ... TylerLarsenMD #COP #Cryptogenic ... #diagnosis #management
Criteria for stopping insulin drip in DKA:
Don't stop the drip until the following criteria are met
1)
ketoacidosis (anion ... gap < 10-12 mEq ... daily dose of long-acting ... is an excellent sign ... #Management #DKA