Saturday, 12 December 2015

Pseudopapilledema vs. True Papilledema

Ophthalmoscopic  Features of    Pseudopapilledema

• Elevated disc; margins obscured
• Absence of physiologic   cup
• Vascular anomalies with increased branching
• Normal nerve fiber layer; disc transilluminates
• May have spontaneous venous pulse
• May see disc drusen  (“hyaline bodies”)
• Hemorrhages rare
• No exudates
• No nerve fiber layer  infarcts



Pseudopapilledema vs. True Papilledema
J.L. Smith “The Optic Nerve” ~ 1975
Finding                 Pseudo        True
SVP                       Yes            No   
Hemorrhages         No             Yes
Retinal Striae        No              Yes
Enlarged BS                   No              Yes
TVO                     No              Yes
FluoroLeakage      No              Yes
Other Neuro                   No             Yes
High Hypermet      Yes              No


Opthlamoscopic finding of papilloedema        

Frisen Grades of
“Swelling of the Optic Nerve Head”
Grade 1: C-shaped blurring of nasal,
superior and inferior margins of disc;
temporal margin normal.
Grade 2: 360-degree elevation of the disc
margin
Grade 3: Elevation of entire disc with
partial obstruction of one or more of the
retinal vessels at the disc margin

Grade 4: Complete obliteration of cup and
complete obscuration of at least some of the
vessels on the surface of the disc
Grade 5: Dome-shaped appearance with all
vessels being obscured (“champagne cork”
papilledema)
Other Signs Consistent With Papilledema
Flame shaped hemorrhages
Paton’s lines
Intraretinal exudates
Intraretinal hemorrhages
Unilateral or Asymmetric Papilledema
In IIH about 10% of cases have asymmetric
Swelling.


Ref: Papilledema vs.Pseudopapilledema
Robert L. Tomsak, MD, PhD Professor of Ophthalmology and Neurology
Wayne State University School of Medicine

Specialist in Neuro-ophthalmology . Kresge Eye Institute .Detroit, MI

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