Opportunistic Screening for Bone Demineralization by Whole Body CT in a Red-Handed Howler Monkey (Alouatta belzebul) Under Human Care.

An eight-year-old male red-handed howler monkey (Alouatta belzebul) underwent whole-body computed tomography for gastrointestinal signs. Quantitative CT of the lumbar vertebrae opportunistically revealed severe bone hypoattenuation, demineralization, and deteriorated trabecular architecture. This incidental diagnosis of metabolic bone disease was directly attributed to chronic inadequate management conditions, specifically a severely imbalanced diet and insufficient sunlight exposure in captivity.