Fatal gunshot wound to the head with lack of immediate incapacitation.

Investigation of deaths caused by penetrating gunshot wounds to the head often raises the possibility of foul play. The forensic pathologist may be asked if the victim was able to perform certain acts after the gunshot, and how quickly this person might have become incapacitated. The possibility of a suicidal act can depend on these answers. We report the case of a 45-year-old woman whose body was found with a right temporal entrance wound. A shotgun was found 60 ft from the body location. The question of knowing if this woman had been able to shoot herself in the head and then walk a distance of 60 ft before dying was essential for the investigation, as suicide was the first hypothesis. The autopsy and a careful neuropathology investigation allowed to answer this question. In the literature, multiple publications report cases of victims who were able to act following penetrating ballistic head injury.

[Hodgkin's disease variant of Richter's syndrome. Two cases and literature review]. / Syndrome de Richter de type pseudohodgkinien. A propos de deux cas et revue de la littérature.

We report the clinical and immunohistological features of two cases of chronic lymphocytic leukaemia (CLL) with Hodgkin's transformation. These cases occurred in a 70-year-old man with a three-year history of CLL and in a 76-year-old man with a few months history of CLL. Microscopic examination showed the presence of large tumor cells with the morphological and immunophenotypic features of classical Hodgkin and Reed-Sternberg (R-S) cells, in a background of otherwise typical B-CLL. The transformation of CLL into large B cell lymphoma (Richter's syndrome) is a well-documented phenomenon. Only rarely does CLL transform into Hodgkin's lymphoma, but this diagnosis is often easy and offers few differential diagnoses. The major points of interest lie in the pathogenetic relationship between CLL and Hodgkin's disease, and in the potential clinical implications of this peculiar condition. Literature on the subject indicates that identical IgH gene rearrangements in micromanipulated R-S and CLL cells have been identified in 7/12 cases. In these patients, the R-S and CLL cells belong to the same clonal population, suggesting a progression from the underlying CLL cells. This group appears to have a poor prognosis, identical to classical Richter's syndrome. In other cases, the R-S cells were often Epstein-Barr virus (EBV) positive and did not share the clonal rearrangements identified in CLL cells, suggesting that Hodgkin's disease in these patients could represent a second malignancy, EBV-related and favored by immunosuppression, associated with a better prognosis.

Sudden Death Due to Undiagnosed Rheumatic Heart Disease in a Child.

We report the case of a 5-year-old boy who died from complications of rheumatic heart disease with atypical presentation. He was hospitalized for recent inflammatory and neurological symptoms. He was diagnosed with viral encephalitis. He died the day after he was discharged. The macroscopic autopsy findings were unremarkable. Histology revealed typical rheumatic heart disease. Neuropathology showed cerebral infarction due to an embolic event linked with the rheumatic valvulitis. The cause of death was determined as heart failure due to rheumatic heart disease secondary to an undiagnosed acute rheumatic fever. It is related to an autoimmune response to infection with group A streptococcus. It mainly affects children in developing countries. In our case, viral encephalitis was consistent with the medical history and the proper diagnosis was made on histological analysis. Forensic pathologists should consider this diagnosis facing a sudden unexpected death in childhood, even in industrialized countries.

Contribution of Antemortem Computed Tomography Findings to Cause of Death Determination: An Unusual Fatal Stroke.

In the case reported here, the antemortem computed tomography scan (CT scan) was essential in the forensic investigation. A 32-year-old man was found fully awake with a facial abrasion, after what seemed to be a car accident. He lost consciousness suddenly one hour after initial management. Successive CT scan showed a facial fracture and a metallic foreign body in the carotid canal associated with an occlusion/dissection of the left internal carotid, a pseudoaneurysm, and a carotid-cavernous fistula. The victim died from a stroke. Autopsy confirmed that the facial abrasion was a gunshot entrance wound, the metallic foreign body being a projectile. Intracranial vascular injuries linked with gunshot wounds are most of the time isolated and due to pelet embolism. The observed vascular injury association has never been described in the existing literature. The CT scan provided a better understanding of the chronology of events that led to death.

An unusual case of strychnine poisoning.

Strychnine-related death has been described since the 19th century. This alkaloid was discovered in 1818. Historically, strychnine was used by the South-East Asian autochthones on their arrows. However, its production was modified by legislation, which was used to protect people against accidental intoxications. Here, we present the case of a 69-year-old man who was found dead at home. During the autopsy, we found a blue substance in the stomach. Toxicological analysis measured strychnine at 0.29 µg/mL in the blood sample, which is a relatively low level in comparison with the results given in the literature. However, histologic examination and toxicological findings permitted the conclusion of strychnine poisoning.

Stage I-IIE primary non-Hodgkin's lymphoma of the testis: results of a prospective trial by the GOELAMS Study Group.

Sixteen patients with aggressive primary testicular involvement were analyzed separately from a prospective multicenter series of 494 patients with stage I/II aggressive nonlymphoblastic lymphoma. The treatment strategy included 3 cycles of anthracycline-based chemotherapy followed by regional radiation therapy on inguinal, iliac, and para-aortic lymph nodes and central nervous system (CNS) prophylaxis by intrathecal chemotherapy and brain irradiation. Chemotherapy was stratified by age group. Patients aged 18-60 years received the Groupe Ouest Est d'Etude des Leucemies Aigues et Maladies du Sang (GOELAMS) 02 protocol: 3 monthly cycles of VCAP (vindesine 3 mg/m2 day 1, doxorubicin 80 mg/m2 day 2, cyclophosphamide 1500 mg/m2 day 2, and prednisone 80 mg/m2 days 1-5). Patients aged 61-75 years received the GOELAMS 03 protocol: 3 monthly cycles of VECP-Bleo (vindesine 3 mg/m2 day 1, epirubicin 60 mg/m2 day 1, cyclophosphamide 750 mg/m2 day 1, prednisone 50 mg/m2 days 1-7, and bleomycin 10 mg/m2 days 1 and 5). Sixteen patients had testicular involvement (3.3%). Median age was 62 years (range, 29-73 years). The histological subtypes were diffuse large-cell lymphoma in all cases. Ann Arbor stage was IEA in 11 patients, IEB in 3 patients, and IIEA in 2 patients. All patients achieved a complete response. One patient died from septic shock during the last course of chemotherapy. After a median follow-up period of 73.5 months, the probability of disease-free survival (DFS) and overall survival (OS) were 70% and 65%, respectively for all patients. Disease-free survival and OS were 66% and 83% in patients = 60 years of age, and 74% and 56% in patients > 60 years of age. Relapse occurred in extranodal sites in 4 cases and in abdominal lymph nodes in the last case. Relapse in the CNS occurred in only 1 patient and in the contralateral testis in 1 patient. We found no correlation between OS, DFS and extent of testicular involvement, Ann Arbor stage, International Prognostic Index score, or lactate dehydrogenase level. This is the first report of a prospective study in which treatment of testicular non-Hodgkin's lymphoma was precisely defined at diagnosis. Compared to other series, a combination of orchiectomy with 3 cycles of CHOP (cyclophosphamide/doxorubicin/vincristine/prednisone)-derived chemotherapy, regional radiation therapy, and CNS prophylaxis seems to improve prognosis. The improvement in prognosis seemed to be due in part to irradiation, including the pelvic and lomboaortic lymphatic areas, and in part to CNS prophylaxis.

The internal acoustic meatus and its meningeal layers: a microanatomical study.

OBJECT: The authors studied the cadaveric heads of 22 adults to describe the internal acoustic meatus (IAM) and its contents. Special attention was paid to the length of the arachnoidal and dural sheaths surrounding the neural structures, including the vestibular ganglion. An additional goal of this study was to verify anatomically the concept of arachnoidal duplication, which is reputedly induced by medial growth of vestibular neuromas and helpful in atraumatic dissection. METHODS: Twelve cadaveric heads (24 IAMs) were injected with colored latex and fixed in formalin. Cautious removal of the skull vault and the brain or the skull base allowed superior and anteroinferior views of the IAM, respectively. Photographs were obtained after removal of the bone canal and dissection of the meninges with the aid of optic magnification. Ten IAMs were prepared for histological study and the osteological anatomy of the fundus was endoscopically described for the remaining 10. The dura mater covered the bone structures of the IAM, and the arachnoidal membrane of the cerebellopontine cistern invaginated into this dural cul-de-sac as a "muff." The entire neurovascular content of the IAM, including the vestibular ganglion, was surrounded by this arachnoidal sheath in which cerebrospinal fluid circulated. The length of this arachnoidal sheath was the same ventrally and dorsally and, in all specimens, the entrance of the cochleovestibulofacial complex into the subarachnoid space was located at the fundus level. CONCLUSIONS: In this study the authors demonstrated the existence of an acousticofacial cistern containing every nerve of the vestibulocochleofacial complex, including the vestibular ganglion from which acoustic neuromas develop. These findings clearly contradict the theory of the duplication of arachnoidal layers during medial growth of vestibular neuromas and may explain some of the intraoperative difficulties encountered in the atraumatic dissection of these tumors.

[Arrhythmogenic right ventricular cardiomyopathy versus fatty replacement of the right ventricle. An autopsy case report]. / Cardiomyopathie ventriculaire droite arythmogène versus remplacement adipeux du ventricule droit.

We report an autopsy case of a cardiomyopathy characterized by fatty replacement of the right ventricular myocardium and compare its clinical and histologic characteristics with those of the arrhythmogenic right ventricular cardiomyopathy. A 39-year old male died suddenly in a hospital room. He had an alcoholic cirrhosis with ascitis, but the clinical examination and the biology showed no abnormalities explaining the death. Histologically, in the right ventricle, large areas of cardiomyocytes were replaced by fat, but there was no fibrosis. In contrast, fibrosis is present in association with fat in arrhythmogenic right ventricular cardiomyopathy. Fatty replacement of the right ventricle is likely to be a distinct entity. Right ventricular failure has been shown to be a possible complication. Sudden death is probably rare and is likely to occur when other arrhythmogenic factors are associated.

Incidental bilateral xanthogranuloma of the lateral ventricles at autopsy--a case report.

We report the case of a woman found dead in a public garden. She had multiple contusions, bruises and lacerations of the face due to blunt force trauma. Microscopic examination of the brain was consistent with a death due to severe craniocerebral injury. The neuropathologist also found yellow nodular lesions located in each lateral ventricle and composed by cholesterol clefts, foamy macrophages, and giant cells. A diagnosis of xanthogranuloma of the choroid plexus was made. According to the literature, xanthogranulomas are uncommon benign lesions of the central nervous system. Mostly are found incidentally at post-mortem examination. However, some of them are symptomatic and can lead to severe nervous central damages if they remain untreated.

Homicidal smothering on toilet paper: A case report.

Toilet paper is a ubiquitous personal hygiene product that is usually considered harmless. It was reported however to have been used as a mean of self-destruction in two unusual suicides, and is here reported to have been used to commit homicide. The body of a 91-year-old woman suffering from Alzheimer's disease was found in the bedroom of her nursing home, a roll of toilet paper near the body and toilet paper protruding from the mouth. At autopsy, pellets of toilet paper were impacted in the buccal cavity and the laryngopharynx above the epiglottis. The cause of death was established as smothering on toilet paper, whereas the manner of death was ruled as homicidal. Non-lethal blunt head injuries were considered to be a contributive factor, by lowering the victim's resistance. The perpetrator was another elderly woman, also suffering from Alzheimer's disease.