What is Obscure autopsy?

DEFINITION:
        An autopsy done meticulously, properly and perfectly, but may present with no clear cut findings as to give a definite cause of death leading to perplexity  of forensic pathologists is defined as an obscure autopsy.



CAUSE:
1. Usually unexplainable.
2. However, several possibilities which are speculated and thought of in a favorable direction to decide case are as follows:
1. Natural causes such as,
1. Obscure morbid anatomy
2.  obscure histopathology
3. Emotional causes
4.  paroxysmal fibrillation etc..
2. Biochemical disturbances:
3. Concealed trauma such as concealed puncture wound
4. Endocrine disturbance
5. Poisoning due to :
1. Anaesthetic over-dosage.
2. Delayed narcotic poisoning
6. Miscellaneous  such as putrefied body concealed trauma includes
1. Cerebral concussion
2. Self-induced neck injury
7. Blunt injury to heart
8. Reflex vagal inhibition


3. Poisoning includes no macroscopic changes are;
• Delayed to subtonic or narcotic poisoning
• Anaesthetic  overdosage or maladministration
• Neurotoxic or cytotoxic poisons
• Plant poisoning