34 results
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
Upper lung zone ... bronchiolitis (RB-ILD ... Pulmonary edema #Diagnosis ... HRCT #ChestCT #Differential ... #Upper #Lower #RadiologyAssistant
Septic emboli
Septic emboli usually present as multiple ill-defined nodules.
In about 50% cavitation is seen.
CT demonstrates more
can suggest the diagnosis ... feeding vessel sign ... feeding vessel sign ... #Clinical #Radiology ... SepticEmboli #Cavity #RadiologyAssistant
More than 100 entities manifest as diffuse lung disease.
Fortunately only about 10 of these account for
80 - 90% of all diagnoses ... some of them the old ... first list is 'SHIT ... #Diagnosis #Radiology ... Mnemonic #HRCT #RadiologyAssistant
Hilar and mediastinal lymphadenopathy
In sarcoidosis the common pattern is right paratracheal and bilateral hilar adenopathy ('1-2-3-sign').
In
adenopathy ('1-2-3-sign ... In lung carcinoma ... #Diagnosis #Radiology ... Lymphadenopathy #Differential ... #RadiologyAssistant
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Differential diagnosis ... : 'signet ring sign ... central dot. - LIP #Clinical ... #Diagnosis #Radiology ... Comparison #Table #RadiologyAssistant
Constrictive Pericarditis on Echocardiogram
A 55-year-old female marathon runner presents to clinic w/ 6-months of worsening breathlessness
ASA, Kussmaul's sign ... edema, and clear lungs ... expiration not meeting diagnostic ... ventricular septal shift ... #cardiology
Bronchiectasis is defined as localized bronchial dilatation.
The diagnosis of bronchiectasis is usually based on a combination
The diagnosis of ... the peripheral lung ... #Diagnosis #Radiology ... Bronchiectasis #Differential ... #RadiologyAssistant
Notice that there are multiple densities in both lungs.
The larger ones are ill-defined and maybe there
densities in both lungs ... dealing with the differential ... diagnosis of chronic ... #Clinical #Radiology ... OrganizingPneumonia #BOOP #RadiologyAssistant
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
bronchiolitis: ill ... #Clinical #Diagnosis ... #Radiology #Pulmonary ... NodularPattern #Differential ... Comparison #Table #RadiologyAssistant
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
the pacemaker shifts ... Sinus #Arrhythmia #cardiology ... #diagnosis #ekg ... #ecg #electrocardiogram ... #variants #clinical