Fictitious ambush following an attempted "extended" suicide

An unusual case of a 31-year-old-woman who was found near a forest road with self-inflicted injuries and burns is reported. The woman claimed to have been attacked by a man with a knife who then tried to burn her in her car. While she managed to escape, her cat died in the car. The examination of the wounds showed multiple superficial cuts in body regions easily accessible to her own hand. Gas chromatography of skin samples from the cat proved that it had been in in contact with a fire accelerant. On the basis of the examination findings, differential diagnostic aspects with regard to the motivation of the woman for simulating an offence are discussed. In all probability, the woman intended to commit suicide together with the cat through self-immolation, but did not complete the plan.     

Differential diagnosis: blue gastric mucosa. Post-mortem staining of the gastric mucosa with methylene blue

An intense discoloration of the gastric mucosa or the gastrointestinal tract found at autopsy gives rise to the question of its cause. Such discolorations are mostly described in the context of intoxications. However, traditional foods and diagnostic procedures using indicator dyes can also lead to an unusual discoloration of the mucous membranes. The authors report on the autopsy findings in a man who died from a bleeding gastric ulcer and whose gastric mucosa showed intense blue discoloration. Experimental postmortem examinations (on stomachs) were performed with methylene blue, a dye used in gastroenterology, resulting in a blue discoloration resembling the appearance of the stomach in the autopsy case. Together with the outcome of the toxicological analyses, the experiments pointed to a diagnostic procedure using methylene blue (chromoendoscopy).     

Investigation of infinite focus microscopy for the determination of the association of blood with fingermarks

The determination of the type of deposition mechanism of blood within fingermarks at the scene of violent crimes is of great importance for the reconstruction of the bloodshed dynamics. However, to date, evaluation still relies on the subjective visual examination of experts. Practitioners encounter three types of scenarios in which blood may be found in fingermarks and they refer to the following three deposition mechanisms: (i) blood marks, originating from a bloodied fingertip; (ii) marks in blood, originating from a clean fingertip contacting a blood contaminated surface; (iii) coincidental deposition mechanisms, originating from a clean fingertip contacting a clean surface, leaving a latent fingermark, and subsequent contamination with blood. The authors hypothesised that, due to differences in distribution of blood in the furrows and on the ridges, the height of blood depositions on the ridges and furrows (and their relative proportions), will differ significantly across the three depositions mechanisms. A second hypothesis was made that the differences would be significant and consistent enough to exploit their measurement as a quantitative and objective way to differentiate the deposition mechanisms.In recent years, infinite focus microscopy (IFM) has been developed, allowing for the computational generation of a 3D image of the topology of a sample via acquisition of images on multiple focal planes. On these bases, it was finally hypothesised that the application of this technique would allow the distinction of deposition mechanisms (i) to (iii). A set of preliminary experiments were designed to test whether IFM was “fit for purpose” and, subsequently, to test if any of the three deposition mechanisms scenarios could be differentiated. Though IFM enabled the analysis of tape lifted samples with some success, for samples produced and analysed directly on the surface of deposition, the results show that the measurements from any scenario will be highly dependent on the original surface of deposition (both in terms of its nature and of the variable exposure to environment); as crime scenes exhibit a wide range of possible relevant surfaces of deposition, the technique showed to not have the desired wide appeal for inclusion into a standardised set of protocols within a routine crime scene workflow.     

An unusual case of a double casualty during sexual intercourse

Sudden death during sexual activity is generally caused by natural diseases, like coronary sclerosis and myocardial infarction. Only a few case reports describe outer circumstances as responsible for the fatal outcome. This is a case report of a couple that drowned within a car sinking into a river. The extraordinary scenery led to the supposition that sexual intercourse was involved with these fatalities. The victims--a young woman and a young man, both had children, the man was married--kept up an extramarital liaison. Both were reported missing by their relatives days before the corpses could be recovered.     

Editorial

Ohne Zusammenfassung

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Editorial

     

An initially unexplained death during prison sentence. Diagnostic verification by atomic absorption spectrometry

The authors report on the death of a 25-year-old man due to electric current in prison, which was not recognized at first. The fatal accident was caused by a self-made electric kettle. The only electrothermal skin lesions were some pinhead-sized electric marks on the left thumb. Careful external inspection of the body in combination with an analysis of the conductor material (aluminium) by means of atomic absorption spectrometry (AAS) revealed the cause of death and the source of accidental electrocution.     

3 case examples of intravital maggot infestations

The authors report on three cases of myiasis which rarely occurs in the civilized world. Poor social conditions, old age, alcoholism, diabetes and vascular occlusive disease were predisposing co-factors. All three victims showed large necrotizing skin ulcerations, but in no case a generalized infection had developed. Therefore the probable benefit from the maggot infestation concerning these ulcerating skin lesions is discussed. For centuries clinicians have observed that maggots provide debridement of necrotic wounds particularly in Military Medicine. With the advent of antibiotics their therapeutic use declined. Recently "biosurgery" (syn. maggot or larval therapy) again became a promising tool for therapy of infected, necrotizing skin-ulcerations. Besides wound debridement marked anti-microbial activity and secretion of proteolytic enzymes could be detected. Maggot debridement is an valuable and cost-effective treatment option for patients with nonhealing wounds.     

Sudden death resulting from epidermoid cyst of the brain

Epidermoid cysts of the brain are rare tumor-like lesions, most often of maldevelopmental origin. They are benign in nature, causing symptoms depending on their localization. Surgical resection leads to excellent results. A case is reported of a 68-year-old-man who died suddenly and unexpectedly. Postmortem examination revealed signs of central dysregulation and a bifrontal epidermoid cyst. To the authors' knowledge, death resulting from epidermoid cyst of the brain has not been reported so far.