The importance of the postmortem interval for the diagnosis of Waterhouse–Friderichsen syndrome by Neisseria meningitidis in a series of forensic cases
Guendalina Gentile; Alberto Amadasi; Paolo Bailo; Michele Boracchi; Francesca Maciocco; Matteo Marchesi; Riccardo Zoja
Microbiological examinations identified Neisseria meningitidis, which was accountable for Waterhouse–Friderichsen syndrome. Diplococci were isolated from three cadavers that underwent forensic dissection between 2 and 3 days after death. The remaining two cadavers showed polymicrobial contamination, and a polymerase chain reaction technique was necessary to identify the pathogen.
We assumed that the microbial overlap could lead to diagnostic mistakes and conceal the identification of the lethal pathogen. Therefore, we suggest using molecular techniques for a postmortem interval (PMI) longer than 72 hours. Classical microbiological examination should be performed for PMI within 72 hours.
Autopsy, Forensic Microbiology, Waterhouse-Friderichsen Syndrome, Post-Mortem Interval