Mnemonic: Upset Kidneys Drink Their Pee
Grade 1: reflux up to Ureter (w/o dilation)
Grade 2: reflux up to Kidneys (w/o dilation)
Grade 3: Dilation (ureter/pelvis/calyces)
Grade 4: Tortuosity (and worse dilation)
Grade 5: Papillary impression loss
Source: Tweet from Ben Abelson
Spinal segment: The part of spinal cord to which a pair of spinal nerves (right and left) is attached. Cause of mismatch between spinal segments and vertebral level: General rule: Vertebral level Add Spinal segment Cervical + 0 Same C7-T1 C8 T1-T3 +1 T1-T4 T3-T6 +2 T5-T8 T7-T8 +3 T9-T11…
As already discussed in the previous section about Lateral Medullary (Wallenberg) Syndrome: 6 “S” pass/lie on the Side (latetral) of Medulla Except the anteromedian part supplied by vertebral artery, rest of the medulla is supplied by PICA Let us now review the relevant anatomy and physiology of the medial portion…
The cross-section of midbrain can be compared to the “upside down striped face of a red-eyed demon“. Using this analogy of a demon face, lets assign the structures found on the cross-section of midbrain: Ear = Crus cerebri Medial – frontopontine fibers Middle – corticonuclear and corticospinal tract Lateral –…