Radiology Notes

My notes during radiology residency, fellowship, and beyond…

Archive for the ‘pulmonary’ Category

Lung Cancer Staging

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New 7th Edition of for Lung Cancer Staging, Radiographics Sept 2010.

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Written by lmwong

December 16, 2010 at 4:07 pm

Centrilobular Lung Nodules

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  • bronchiolitis
  • endobronchial spread of TB, MAC
  • bronchopenumonia
  • hypersensitivity pneumonitis
  • endobronchial spread of tumor
  • pneumoconiosis
  • organizing pneumonia (BOOP)
  • histiocytosis
  • edema or vasculitis

Written by lmwong

April 25, 2010 at 5:17 pm

Random Lung Nodules

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  • miliary TB
  • miliary fungal infections
  • hematogenous mets
  • sarcoidosis

Written by lmwong

April 25, 2010 at 5:09 pm

Perilymphatic Lung Nodules

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  • sarcoid
  • lymphangitic spread of tumor
  • silicosis and CWP
  • amyloid
  • LIP

Written by lmwong

April 25, 2010 at 5:00 pm

Right Pneumonectomy Syndrome

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  • occurs most commonly in children and adolescents
  • right posterior deviation of the mediastinum
  • counter-clockwise rotation of heart and great vessels
  • displacement of hyperinflated left lung into right anterior hemithorax
  • develop airway obstruction from compressoin between left pulmonary artery and descening aorta; compression of left main bronchus, distal trachea, or LLL bronchus

Written by lmwong

April 5, 2010 at 9:36 am

Posted in chest, pediatrics, pulmonary

Crazy Paving Pattern

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Thickened inter and intralobular structures, forming polygonal shapes, with no architectural distortion. Diseased lung well demarcated from normal lung forming a geographic pattern.
  • alveolar proteinosis (classically)
  • sarcoidosis
  • pulmonary hemorrhage
  • PCP
  • mucinous bronchoalveolar carcinoma
  • pulmonary venoocculusive disease
  • ARDS

Written by lmwong

April 5, 2010 at 9:33 am

Fleischner Society guidelines for pulmonary nodule follow up

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Low risk patients

  • < or = 4 mm: No follow-up needed.
  • >4 – 6: Follow-up at 12 months. If no change, no further imaging needed.
  • >6 – 8: Initial follow-up CT at 6 -12 months and then at 18 – 24 months if no change.
  • >8: Follow-up CTs at around 3, 9, and 24 months. Dynamic contrast enhanced CT, PET, and/or biopsy.

High risk patients

  • < or = 4 mm: Follow-up at 12 months. If no change, no further imaging needed.
  • >4-6: Initial follow-up CT at 6 -12 months and then at 18 – 24 months if no change.
  • >6-8: Initial follow-up CT at 3 – 6 months and then at 9 -12 and 24 months if no change.
  • >8: Follow-up CTs at around 3, 9, and 24 months. Dynamic contrast enhanced CT, PET, and/or biopsy.

Fleischner Society Guidelines: Radiology 2005 Nov; 237:395-400.

Written by lmwong

February 3, 2010 at 12:08 pm