Inconclusive autopsy is known as?

Ans. is 'a' i.e., No cause of death is found on gross as well as histopathological examination Types of autopsy1) Normal autopsy - cause is apparent from gross examination2) Defective autopsy - cause was ascertainable, but was not ascertained due to constrains on the part of doctor, hospital, facilities etc3) Obscure autopsy - gross findings are minimal, indecisive or obscure, as in adrenal insufficiency, anesthetic overdose, myxedema, rare plant poisons, thyrotoxicosis etc. subsequent examination like histology, microbiology, toxicology or serology reveal the cause.4) Negative autopsy / inconclusive autopsy - Cause is not clear from gross as well as subsequent examinations.