105 results
Nodular pattern
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary TB: random nodules
3. Sarcoidosis: nodules with perilymphatic
Nodular pattern ... #Clinical #Radiology ... #HRCT #CTChest ... #Nodular #Pattern ... #Comparison #Table
Nodular pattern(2)
1. Sarcoidosis: nodules with perilymphatic distribution, along fissures, adenopathy.
2. TB: Tree-in-bud appearance in a patient
Nodular pattern( ... histiocytosis: early nodular ... #HRCT #CTChest ... #Nodular #Pattern ... #Comparison #Table
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
diseases with a nodular ... #Clinical #Diagnosis ... #Radiology #Pulmonary ... #CTChest #Nodular ... Differential #Comparison #Table
Perilymphatic distribution
Perilymphatic nodules are most commonly seen in sarcoidosis.
They also occur in silicosis, coal-worker's pneumoconiosis and
in differential diagnosis ... and the nodular ... #Diagnosis #Radiology ... Pulmonary #HRCT #CTChest ... Perilymphatic #Nodular
Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
Algorithm for nodular ... centrilobular nodules ... #Diagnosis #Radiology ... Pulmonary #HRCT #CTChest ... NodularPattern #Nodular
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Differential diagnosis ... Nodular LCH: - Sarcoidosis ... LIP #Clinical #Diagnosis ... #Radiology #CTChest ... Differential #Comparison #Table
Here are the most common examples of these four patterns on a chest x-ray (click image
patterns on a chest ... opacities - Fine Nodular ... Solitary Pulmonary Nodule ... Masses Atelectasis #Diagnosis ... #Clinical #Radiology
Tree-in-bud
In centrilobular nodules the recognition of 'tree-in-bud' is of value for narrowing the differential diagnosis.
Tree-in-bud describes
centrilobular nodules ... the differential diagnosis ... irregular and often nodular ... #Radiology #Pulmonary ... #CTChest #TreeInBud
Melanoma - Clinical subtypes
 - 
Superficial spreading melanoma (70%)
 - 
Nodular melanoma (15%)
 - 
Lentigo maligna
melanoma (70%) - Nodular ... melanoma (5%) #Diagnosis ... Subtypes #Comparison #Table ... #Superficial #Nodular
On the left another typical case of sarcoidosis.
In addition to the perilymphatic nodules, there are multiple
perilymphatic nodules ... #Clinical #Radiology ... #CTChest #Sarcoidosis ... Peribronchovascular #Nodular