19 results
Pulmonary Tuberculosis - Patterns of Involvement
 • Scarring, Nodules and Consolidation
    - Lobar
Involvement • Scarring, Nodules ... distributed small nodules ... in the apical region ... Abscess and Hilary Lymphadenopathy ... xray #clinical #radiology
Hilar and mediastinal lymphadenopathy
In sarcoidosis the common pattern is right paratracheal and bilateral hilar adenopathy ('1-2-3-sign').
In
and mediastinal lymphadenopathy ... adenopathy ('1-2-3-sign ... #Diagnosis #Radiology ... #Mediastinal #Lymphadenopathy ... #Differential #RadiologyAssistant
Stages of Syphilis
Early Primary:
 • Painless chancre
 • Regional lymphadenopathy
Early Secondary:
 • Fever, malaise
 • Rash
Painless chancre • Regional ... lymphadenopathy ... • Gummatous • Nodular ... Stages #symptoms #signs
The distribution of nodules shown on HRCT is the most important factor in making an accurate
distribution of nodules ... diagnosis in the nodular ... centrilobular region ... #Diagnosis #Radiology ... Comparison #Diagram #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 ... Clinical #Diagnosis #Radiology ... Comparison #Table #RadiologyAssistant
Size
A solitary pulmonary nodule (SPN) is defined as a single intraparenchymal lesion less than 3 cm
solitary pulmonary nodule ... atelectasis or lymphadenopathy ... the over 2000 nodules ... #EBM #Radiology ... MalignancyRate #Rate #RadiologyAssistant
The azygoesophageal recess is the region inferior to the level of the azygos vein arch in
recess is the region ... enlargement Subcarinal lymphadenopathy ... Clinical #Anatomy #Radiology ... Azygoesophageal #Recess #RadiologyAssistant
Septic emboli
Septic emboli usually present as multiple ill-defined nodules.
In about 50% cavitation is seen.
CT demonstrates more
multiple ill-defined nodules ... feeding vessel sign ... feeding vessel sign ... #Clinical #Radiology ... SepticEmboli #Cavity #RadiologyAssistant
Sarcoidosis
On a CXR sarcoidosis usually first presents with hilar and mediastinal lymphadenopathy (example).
Parenchymal disease can present
and mediastinal lymphadenopathy ... presentation is a fine nodules ... When these small nodules ... #Clinical #Radiology ... #Sarcoidosis #RadiologyAssistant
Differential diagnosis of the reversed halo sign (RHS). AIA, angioinvasive aspergillosis; AIS, adenocarcinoma in situ; COP,
reversed halo sign ... centrilobular nodules ... right paratracheal lymphadenopathy ... and small nodules ... Diagnosis #Pulmonary #Radiology