Diatoms: Role in drowning.

Drowning is a form of asphyxia due to aspiration of fluid into air passages caused by submersion in water or other fluid and is mostly accidental. The main question in case of a body recovered from water is whether the individual was alive at the time he entered water. If a body is found in water is does not necessarily mean, that this person has drowned.Deaths by drowning are difficult to determine and are often diagnosed by eliminating all other potential causes of death. Diatoms found inside the body of a drowned victim may serve as corroborative evidence in the diagnosis of cause of death. It can be ascertained whether the drowning is ante-mortem or post-mortem. The diatom test stands as the only direct screening test for drowning. The present case is one such example wherein the presence of diatoms has helped in arriving at a decision of ante mortem drowning, thereby emphasising its significance.