Neurology Quiz #4: Posterior Fossa Malformations and Syringomyelia

1. A 6-year-old boy is brought to the pediatrician by his parents, who are concerned about his difficulty walking and frequent falls. Physical examination reveals nystagmus, and MRI of the brain demonstrates tonsillar herniation below the foramen magnum. Which of the following is the most likely diagnosis?

Question 1 of 5

2. A 30-year-old woman presents to the clinic with complaints of progressive weakness in her hands and arms over the past few months. She also mentions a decreased sensitivity to hot and cold temperatures in her hands. MRI of the spine reveals a cavity within the central spinal cord extending from C4 to T1. Which of the following is the most likely diagnosis?

Question 2 of 5

3. A newborn is diagnosed with a posterior fossa malformation characterized by a cystic enlargement of the fourth ventricle, complete or partial agenesis of the cerebellar vermis, and an enlarged posterior fossa. Which of the following is the most likely diagnosis?

Question 3 of 5

4. A 24-year-old man presents with a one-year history of intermittent headaches and recent onset of scoliosis. Neurological examination reveals decreased pain and temperature sensation in a "shawl" distribution across his shoulders and upper back. MRI of the cervical spine shows a syrinx extending from C3 to C7. Which of the following conditions is most commonly associated with this patient's findings?

Question 4 of 5

5. During a routine prenatal ultrasound, a 28-week gestation fetus is found to have a neural tube defect involving the lower spine, as well as herniation of cerebellar tissue. The obstetrician also notes ventriculomegaly. Which of the following is the most likely diagnosis?

Question 5 of 5


 

¡Por tiempo limitado!

Unete a nuestro boletín mensual y obtén todos nuestros talleres USMLE/ECFMG ¡GRATIS! (+100 videos)

¡Únete a nuestra comunidad de IMGs!

¡Obtén actualizaciones mensuales USMLE y ECFMG, además, obtén un taller USMLE gratis al instante!

"Taller 01: ¿Qué es el USMLE?”

Taller Gratuito USMLE

Este taller proporciona un análisis en profundidad de todos los exámenes USMLE, consejos para tomar exámenes y cómo estudiar de manera efectiva.

OFERTA POR TIEMPO LIMITADO

Especialista ECFMG: Dr. Carla Rebeca Lainez Casal

Facultad de Medicina: Universidad Catholica de Santiago de Guayaquil
ECFMG Certification date: October 13, 2022.
Residency: 2023 Internal Medicine Applicant
+1 7542724970