NEUROLOGY

Question 1

A 5-year-old boy presents with an unsteady gait and severe vertigo and nausea. A brain lesion is seen on CT scan; a biopsy of the lesion is shown in the image. Where in the brain is the patient’s lesion?
(A) Cerebellar vermis
(B) Intermediate section of the cerebellar
hemisphere
(C) Lateral section of the cerebellar hemi-
sphere
(D) Occipital cortex
(E) Postcentral gyrus of the parietal lobe

Question 2

Congenital heart disease: What are the causes of the right-to-left shunt?

Answer 2

The 5 T’s:
1. Truncus arteriosus (1 vessel) - Persistent truncus arteriosus

2. Transposition (2 switched vessels) - D-transposition of great arteries
3. Tricuspid atresia (3 = Tri)
4. Tetralogy of Fallot (4 = Tetra)
5. TAPVR (5 letters in the name) - Total anomalous pulmonary venous return