negative autopsy

An autopsy for which the gross and histologic findings do not provide an adequate cause of death; 2 to 5% of post-mortem examinations are deemed unascertained

negative autopsy

Pathology An autopsy for which the gross and histologic findings do not provide an adequate explanation for the cause of death. See Autopsy.
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References in periodicals archive ?
USG+A-: positive ultrasound and negative autopsy findings
The "dead-in-bed" syndrome, by definition, has a negative autopsy and accounts for up to 6% of all deaths in type I diabetics under the age of 40 years [2].
This case suggests a cause of death in a patient with diabetes who died in bed with a negative autopsy. It demonstrates a possible link between dead-in-bed syndrome and Brugada syndrome, thereby supporting earlier work [13], albeit for a GPD1L gene variant of unclear clinical significance but with supportive in vitro evidence.
A negative autopsy means that no natural or unnatural cause of death has been found during the morphological evaluation.