Stature estimation based on the mandibular bone measurements using three-dimensional images from postmortem computed tomography in a Japanese population.

We aimed to evaluate the correlation between cadaver stature and mandibular bone measurements using three-dimensional (3D) computed tomography (CT) images and develop a stature estimation formula for a Japanese population. In total, 307 and 72 identified cadavers who underwent postmortem CT were selected as the "training" and "validation" datasets, respectively, to derive a stature estimation formula. Four mandibular bone measurements (linear distances between the bilateral mandibular condyles: C-C, from the mental spine to the mandibular condyle: S-C, between the bilateral mandibular foramen: F-F, and from the mental spine to the mandibular foramen: S-F) were obtained from 3D CT-reconstructed images that included only the mandibular bone.

Age estimation using postmortem computed tomography-based Hounsfield unit values of the palate and mandibular condyle and the Eichner classification.

Age estimation is important in forensic investigations of unidentified human remains. This study assessed the correlation between age and Hounsfield unit (HU) values of the palate and mandibular condyle based on postmortem computed tomography (CT) and analyzed the influence of occlusal support in developing an age estimation method for Japanese individuals, including older adults. The sample consisted of a training dataset (357 cadavers) and a validation dataset (300 cadavers) that underwent postmortem CT.

A forensic autopsy case: Sudden unexpected death due to cardiac inflammatory myofibroblastic tumor.

We report an autopsy case of a 25-year-old man with no medical history who died suddenly in an Internet cafe. He was found in cardiorespiratory arrest and did not respond to cardiopulmonary resuscitation. Traumatic lesions were not observed on his body.