A faun tail nevus is suggestive of which condition?

A faun tail nevus, also known as a tufted hair nevus, is a pigmented lesion that typically presents as a patch of hair on the lower back and can indicate an underlying spinal cord or vertebral defect. Specifically, it is commonly associated with spina bifida, as both conditions can involve neural tube defects. This association arises because the presence of a faun tail nevus is often linked to spinal dysraphism, which is a spectrum of congenital midline abnormalities that includes spina bifida.

Understanding this condition is crucial for clinical practice, as recognizing a faun tail nevus can prompt further evaluation for spina bifida and other related neurological issues. In contrast, while other options listed may present with their own set of diagnostic indicators, they do not typically correlate with the presence of a faun tail nevus. For instance, Down syndrome is characterized by distinct facial features and is not related to cutaneous markers like a faun tail nevus. Similarly, infantile scoliosis and congenital heart disease have their own sets of clinical signs and do not include faun tail nevus as a common association.