Xanthochromia
（重定向自Xanthochromic）
Xanthochromia (from the Greek xanthos (ξανθός)=yellow and chroma (χρώμα)=colour), is the yellowish appearance of cerebrospinal fluid (which envelops the brain) in particular medical conditions, especially subarachnoid hemorrhage. This can be determined by spectrophotometry (measuring the absorption of particular wavelengths of light) or visual examination. It is unclear which method is superior.