Radiology Notes

My notes during radiology residency, fellowship, and beyond…

Aspergillosis Spectrum

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  • fungus ball
  • preexisting cavity, bulla, bronchiectasis
  • saprophytic
  • sarcoidosis, CF
  • Hemoptysis
  • round opacity within cyst or cavity
  • air crescent
  • mobile
  • pleural thickening

Semiinvasive Aspergillosis

  • Mildly immunosuppressed hosts
  • focal consolidation > cavity > air crescent > thick-walled cyst > fungus ball

Invasive Aspergillosis

  • Immunocompromised hosts
  • granulocytopenia
  • single or multiple nodules
  • cavitation
  • air crescent
  • “Halo” sign on CT

Allergic Bronchopulmonary Aspergillosis

  • Hypersensitiviy reaction to aspergillus in mucous plugs
  • mucoid impaction
  • asthmatic patients
  • lobar consolidation
  • chronic, upper lobe scarring and bronchiectasis

Written by lmwong

October 8, 2013 at 9:12 pm

Posted in chest, differential


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What are those devices called and what are they used for? Here are some helpful links I use:

Gallery of Medical Devices, Part 1. Radiographics.

Gallery of Medical Devices, Part 2. Radiographics.

Ortho Atlas from University of Washington

Written by lmwong

June 12, 2013 at 9:10 am

Posted in abdomen, chest, fracture, msk, x-ray

Cord Insertion Types

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Required element in a complete >14wk OB ultrasound report.

Cord Insertion types: central, eccentric, marginal, and velamentous

Nice youtube video for ultrasound images.

Written by lmwong

May 16, 2013 at 11:05 am

Posted in OB, ultrasound

Hypertrophic Olivary Degeneration

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Written by lmwong

May 8, 2012 at 12:56 pm

Posted in neuro, pediatrics

Blount’s disease

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  • tibia vara, causes genu varum.
  • metaphyseal-diaphyseal angle >11 degrees
  • bilateral ~infantile type
  • pain in adolescent

Written by lmwong

May 8, 2012 at 8:41 am

Posted in bone, msk, pediatrics

Vascular Anomalies, ISSVA Classification

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2 categories: vascular tumors or vascular malformations. Distinction determines therapy.

Vascular Tumors

  • infantile hemangiomas: grow rapidly after birth, GLUT1+
  • congenital hemangiomas (RICH and NICH): fully mature at birth, GLUT1-
  • Tufted angioma
  • Kaposiform hemangioendothelioma
  • Spindle cell hemangioendotheliomas
  • Dermatologic acquired vascular tumors

Vascular malformations (slow)

  • capillary malformation (port-wine stain, telangiectasia, angiokeratoma)
  • venous malformation
  • lymphatic malformation

Vascular malformations (fast)

  • arterial malformation
  • arteriovenous fistula
  • arteriovenous malformation

PDF link

Written by lmwong

April 23, 2012 at 12:57 pm

Status Marmoratus

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Status marmoratus is the presence in full-term infants of basal nucleus lesions resulting from acute total asphyxia. The lesions have a marbled appearance caused by neuronal loss and an overgrowth of myelin in the putamen, caudate, and thalamus.  – wiki

Link about HIE

Another good link about HIE

Written by lmwong

April 12, 2012 at 12:09 pm

Posted in basal ganglia, head, neuro

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