The most reliable autopsy sign distinguishing antemortem drowning from postmortem submersion is:
- A Goose-skin appearance (cutis anserina)
- B Washerwoman's hands
- C Diatom content in bone marrow ✓
- D Froth at mouth and nostrils
Correct answer: C. Diatom content in bone marrow
Explanation
Diatom test on bone marrow (femur) is the most reliable method to confirm antemortem drowning. Diatoms enter the circulation through alveoli during active breathing and are distributed to bone marrow; their presence in femoral marrow confirms the victim was alive when submerged. Froth, goose skin, and washerwoman's changes occur in both antemortem drowning and prolonged postmortem immersion.
Reference: The Essentials of Forensic Medicine and Toxicology (Narayan Reddy), 34th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.