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What condition results from abnormal development of the brain and is associated with a small, conical-shaped head?

  1. Microcephalus

  2. Hydrocephalus

  3. Pseudotumor Cerebri

  4. Acquired Brain Injury

The correct answer is: Microcephalus

The condition that results from abnormal development of the brain and is associated with a small, conical-shaped head is microcephalus. Microcephalus, or microcephaly, is characterized by a significantly smaller head size compared to others of the same age and sex, which can occur due to issues in brain development. This reduced size can indicate potential developmental delays or neurological problems, as the brain might not have developed to its full size or functionality. In contrast, hydrocephalus involves an accumulation of cerebrospinal fluid in the brain ventricles, which typically leads to an increase in head size rather than a decrease. Pseudotumor cerebri is a condition that presents symptoms similar to a brain tumor but without an actual mass and does not specifically relate to head shape. An acquired brain injury refers to any injury occurring after birth that causes damage to the brain, which can have various causes and does not specifically relate to the abnormal development typical in microcephalus.