[Postmortem dog bites after sexually motivated homicide with multiple stab wounds--differential diagnostic aspects]

The body of a 20-year-old woman that had undergone significant putrefaction was found lying on the bed of her apartment in a supine position. The legs were straddled and apart from a T-shirt, she was naked. The inner side of the right thigh showed a circumscribed 20 cm x 40 cm defect exposing the underlying muscles. The wound margin was ragged and superficial scratch-type abrasions were found in the vicinity of the injury margin. The investigating police officers classified the injuries to be caused postmortem by a crossbreed dog that was inside the apartment. No other signs of external force were found on the body at the death scene and due to the previous history of the deceased, a drug death was assumed. Autopsy revealed 13 vital stab wounds in the neck and aspiration of blood in the lungs as well as signs of manual strangulation. The observed coincidence of injuries due to postmortem animal depredation and stab wounds, although in different localization, can be regarded as a rare entity in the light of the literature. The morphological appearance of traumatic injuries due to other causes can be modified by the simultaneous presence of postmortem injuries caused by animals and difficulties can arise concerning the differential diagnosis especially under poor conditions (e.g. advanced putrefaction) at the death scene.