Many experts call inflammation the «silent killer» because it has no outward signs and often goes undetected for years. (liveinthenow.com)
Glass acknowledges that the jump in breast cancer could be attributed to more women getting mammograms, because the test can find cancers that might otherwise go undetected until the disease has progressed. (scientificamerican.com)
Dogs that are bilaterally deaf become fairly obvious with time (they don't wake up at meal time or in response to loud noises), but unilaterally deaf dogs usually go undetected because they respond to sounds with their good ear. (abneycatahoulas.com)