Radiology Notes

My notes during radiology residency, fellowship, and beyond…

Archive for the ‘head’ Category

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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IAC Mass

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  • acoustic neuroma
  • facial neuroma
  • hemangioma
  • lipoma
  • meningioma
  • epidermoid

Written by lmwong

February 19, 2010 at 11:05 am

Posted in differential, ent, head, neuro

Vascular Mass in Middle Ear

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  • Glomus tympanicum
  • Aberrant carotid artery
  • carotid artery aneurysm
  • persistent stapedial artery
  • exposed jugular bulb
  • exposed carotid artery
  • hemangioma
  • extensive glomus jugulare

Written by lmwong

February 19, 2010 at 11:04 am

Posted in differential, ent, head, neuro

Soft Tissue Mass in Middle Ear

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  • Cholesteatoma
  • Chronic otitis media
  • Granulation tissue
  • Cholesterol granuloma
  • Glomus tympanicum tumor
  • Aberrant internal carotid artery
  • High or dehiscent jugular bulb

Written by lmwong

February 19, 2010 at 11:02 am

Posted in differential, head, neck

Brain MRI Dictation

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Indication: [x]

Technique: An MRI of the brain was performed utilizing the following sequences: [x]

Comparison: [x]

Findings: The ventricles and sulci are normal in size and configuration. There is no acute infarct or intracerebral hemorrhage. No extra-axial blood or fluid collection is present. No intracranial mass is identified. The brainstem, posterior fossa and cervical medullary junction are preserved. Normal intracranial intravascular flow voids are seen. The orbits, periorbital and paracavernous spaces are normal. No abnormality of the skull base or calvarium is identified.

Impression: Normal MRI of the brain.

Written by lmwong

April 9, 2008 at 11:02 am

MRA Head Dictation

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Indication: [x]

Technique: An MRA of the head was performed using 3D time-of-flight technique without the use of gadolinium.

Comparison: [x]

Findings: The anterior and posterior cerebral circulations are patent. No hemodynamically significant stenosis, anuerysmal dilatation or dissection is seen. No focal anuerysm is identified.

Impression: Normal MRA of the head.

Written by lmwong

April 9, 2008 at 11:02 am