Shotgun slug wads as a marker of range of fire: A case report and novel firearm testing data.

Assessment of wound characteristics and the identification of various constituents of firearm discharge at autopsy play a key role in the determination of range of fire. In relation to wounds caused by shotguns, identification of the wad within the wound track, or of injury caused by the wad, is typically thought to suggest a fairly close range of fire. We present a case of a fatality due to a shotgun slug wound where the presence of the wad within the decedent's body was proposed by defense at criminal trial to favor accidental close range discharge during a struggle for the weapon-as opposed to the prosecution's contention of intentional firing of the weapon from a greater range and through an intermediate target. We undertook test firing of a shotgun of similar design to that which was fired during the interaction (a 12-gauge pump-action shotgun) using shotshells consistent with the slug that was recovered from the body (Winchester Super X brand), which demonstrated that the non-attached fiber wad present in this shotshell design can accompany the slug over distances of at least up to 22 feet (6.7 m) and even after transit through intermediate targets such as a vehicle headrest. These novel data provide assistance with estimation of range of fire in instances of injuries caused by shotgun slugs.

Hidden IgG4-Related Coronary Disease.

OBJECTIVES: We present a full autopsy with a focused radiology and pathologic review of the coronary arteries. We hope that the results described in this article will help create better diagnostic measures and prevent future coronary artery vasculitis misdiagnosis. METHODS: A full autopsy was performed on the body of Dr Myung Choong Yoon, with full consent from the family, within the department of pathology and laboratory medicine at Vancouver General Hospital. Tissue samples from the heart, brain, lungs, and spinal cord were submitted to specialist pathologists for histologic processing. RESULTS: Cardiac gated computed tomography coronary angiography suggested periarteritis. Coexistent calcified coronary atherosclerosis with linear calcifications was present along the luminal wall, along with coronary artery ectasia. Histologic assessment confirmed features of dense adventitial fibrosis around the coronary arteries, with an exuberant lymphoplasmacytic infiltrate and numerous plasma cells consistent with IgG4-related disease. The media of the coronary arteries was markedly attenuated or completely absent, which likely contributed to the coronary arterial ectasia noted microscopically. These findings confirmed IgG4-related coronary arteritis. CONCLUSIONS: Coronary periarteritis is an uncommon manifestation of IgG4-related disease established radiographically and later by autopsy.

Autopsy Education in Canadian Pathology Programs: A Survey of Canadian Trainees.

INTRODUCTION: This survey of Canadian pathology residents was designed to quantify the number of autopsies Canadian residents aim to complete during residency training, to better understand the perception of residents about access and quality of autopsy skills education. In addition, the interest of current pathology residents in autopsy and forensic pathology as a future career was also assessed. METHODS: A web-based survey was sent to all Canadian pathology residents. This survey consisted of 19 questions on institution, level of training, intention to complete the American Board of Pathology examination, number of autopsies completed, perception of quality/access to autopsy skills education, interest, and factors contributing to autopsy and forensic pathology. RESULTS: Eighty two (26%) of a possible 310 residents (12/47 general pathology, 70/263 anatomical pathology) across all Canadian institutions offering anatomical or general pathology programs (16/16 institutions) participated in the survey. Eighty-three percent of the respondents rated autopsy education as either very important or important. Fifty-five percent of the respondents intended to either challenge the American Board of Pathology examination or wanted the option to do so in the future, whereas only 47% of the participants agreed that all residents who wish to challenge the examination will easily be able to complete 50 autopsies during residency. Only 18% of the respondents were interested in performing autopsies as a major part of their career, and a combined 52% were only interested in performing autopsies to secure a desired position or felt that having to do autopsies would be a job deterrent. The quality of autopsy teaching received and the number of autopsies performed was identified as the most significant factors affecting interest in performing autopsies as part of a future career. A combined 68% of the respondents felt that the job market in forensic pathology in Canada was either good (better than most subspecialties) or very good (more jobs than graduating fellows). Seventy-one percent (12/17) of postgraduate year 5 respondents reported having completed 50 or more autopsies at the time of survey completion. Eleven percent of the respondents did not agree that all residents who document having completed an autopsy at their institution will have participated in all 8 essential autopsy tasks. Twenty four (29%) of the 82 respondents provided detailed narrative comments. DISCUSSION: Most Canadian pathology residents believe that autopsy education is an important component of residency training. Limited access to quality autopsy teaching seems to be an important factor in resident interest in forensic pathology as a future career, despite a perceived good job market in comparison with most other subspecialties.