10 results
Radiation Dose to Adults from Common Imaging Examinations
ABDOMINAL REGION
 - Computed Tomography (CT) — Abdomen and
Adults from Common Imaging ... ) — Chest 7 mSv ... #PatientInfo #Radiology ... #Nuclear #Comparison ... #Table #Risks #
Estimated Medical Radiation Doses for 5 Year-Old Child

3-view ankle	0.0015 mSv	1/14th CXRs
2-view chest	0.02 mSv	1 CXRs
Anteroposterior and lateral
Chest CT 3 mSv 150 ... #PatientInfo #Radiology ... Radiation #Doses #Imaging ... #Nuclear #Comparison ... #Table #Risks #
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
: 'signet ring sign ... central dot. - LIP #Clinical ... #Diagnosis #Radiology ... #CTChest #Cystic ... #Differential #Comparison
Tree-in-Bud Sign on Chest CT
 • Multiple centrilobular nodules arranged in a linear branching pattern.
 •
Tree-in-Bud Sign ... on Chest CT • ... linear branching pattern ... #diagnosis #radiology ... #clinical #tree
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
with a nodular pattern ... #Clinical #Diagnosis ... #CTChest #Nodular ... #Differential #Comparison ... #Table #RadiologyAssistant
How much radiation is used in paediatric radiology examinations compared to other exposures?

Estimated dose - Days
mSv 8 months Chest ... CT 3 mSv 12 months ... Radiation #Doses #Imaging ... #Nuclear #Comparison ... #Table #Risks #
Myasthenia Gravis Overview

Myasthenia Gravis is an autoimmune disorder of the postsynaptic neuromuscular junction.  Ab to
myasthenia Diagnosis ... test - Cogan sign ... - Peek sign ... Imaging - CT Chest ... Myasthenia #Gravis #diagnosis
Fleischner Society recommendations for follow-up of nodules
Previous chest radiographs should be reviewed to determine if the
lesion has been stable ... with a benign pattern ... mm depends on clinical ... definitive tissue diagnosis ... #CTChest #Fleischner
Chronic hypersensitivity pneumonitis (2)
The case on the left shows an inspiratory and expiratory scan: the mosaic
scan: the mosaic pattern ... Signs of fibrosis ... Based on the imaging ... #Clinical #Radiology ... #CTChest #Chronic
The chart below (from the FDA) shows radiation exposure with a variety of procedures and how
cells taking in 8 mSV ... years is a lot different ... #PatientInfo #Radiology ... Radiation #Doses #Imaging ... #Comparison #Table