Body & Brain Quiz 1

Saddle sensory loss and urinary retention

A patient develops saddle anesthesia, bilateral leg weakness, urinary retention, and reduced anal tone.

Acute bilateral weakness with pain-temperature loss

A patient develops acute bilateral leg weakness and loss of pain and temperature below a spinal level.

Newborn with a lumbosacral neural-tube defect

A newborn has a lumbosacral neural-tube defect with neurologic deficits.

Radicular pain with dermatomal weakness

A patient has radicular pain, paresthesia, and weakness in a dermatomal and myotomal pattern.

Newborn with a midline dimple and hair tuft

A newborn has a small lumbosacral midline dimple with a tuft of hair. The lower-extremity examination is otherwise reassuring and there is no exposed sac.

Newborn with a lumbosacral sac and intact leg movement

A newborn has a fluctuant lumbosacral sac. Leg movement is intact and the sac appears to contain fluid rather than visibly exposed neural tissue.

Prenatal scan with absent cranial structures and excess fluid

A prenatal ultrasound shows severe absence of cranial structures. The pregnancy also has excess amniotic fluid.

Prenatal midline abdominal-wall defect with a covering sac

A prenatal ultrasound shows abdominal contents herniating at the base of the umbilical cord through a midline defect covered by a membrane.

Newborn with bowel exposed beside the umbilical cord

A newborn has bowel protruding through a small abdominal-wall opening just lateral to the umbilical cord. There is no covering membrane.

Prenatal severe low amniotic fluid with absent renal structures

A prenatal ultrasound shows severe low amniotic fluid and bilateral absence of expected renal structures. Lung development appears limited.

Bilateral cape-like pain-temperature loss

An adult has gradually progressive bilateral loss of pain and temperature across the shoulders and upper arms, with preserved fine touch and proprioception.