Examination of the Cerebellomedullary Cistern Using Postmortem Computed Tomography in Various Types of Intracranial Hemorrhage / 대한법의학회지

Intracranial hemorrhage is a major cause of sudden unexpected death and its identification is important for death investigations. Cisternal puncture of the cerebellomedullary cistern (CMC) can be used to identify intracranial hemorrhage during postmortem examination. Intracranial hemorrhage comprises various types of hemorrhage, and the possibility of hemorrhage identification by cisternal puncture can differ according to the type of intracranial hemorrhage. Postmortem computed tomography (PMCT) is non-invasive and can be performed before autopsy. In this study, we aimed to identify the hemorrhage in the CMC using PMCT in cases of various intracranial hemorrhage. PMCT was performed before the autopsy. Autopsy reports and PMCT were retrospectively reviewed for 108 cases of intracranial hemorrhage confirmed by conventional autopsy. Hemorrhagic regions showed ≥60 Hounsfield units on PMCT. Hemorrhage in the CMC was identified in 42.6% (46/108) by PMCT and was frequently identified in the cases of basal subarachnoid hemorrhage (SAH) (19/21). Hemorrhage in the CMC was identified in approximately 50% of patients with non-basal SAH and intracerebral hemorrhage. Detection of hemorrhage in the CMC by PMCT is hindered by several factors, such as dental artifacts. This study does not guarantee the usefulness of postmortem cisternal puncture. However, this study verified hemorrhage in the CMC according to the various types of intracranial hemorrhages using PMCT and showed its possibilities and limitations.

Influence of Self-care on Burnout in Primary Family Caregiver of Person with Dementia

Purpose@#The purpose of this study was to identify the influence of self-care on burnout experienced by primary family caregivers of persons with dementia. @*Methods@#The subjects of the study were 156 primary family caregivers of persons with dementia at home in Korea. Data were analyzed using descriptive statistics, independent t-test, one-way ANOVA, Pearson correlation coefficient, and hierarchical multiple regression using IBM SPSS Statistics ver. 24.0 for Windows. @*Results@#The mean scores for self-care and burnout were 42.35 and 61.60, respectively. Self-care, subjective health status, living with a person with dementia, and behavioral and psychological symptoms of dementia were significant factors affecting burnout in family caregivers. Self-care was identified as the strongest factor affecting burnout, explaining 13.9% of burnout with controlling factors in caregivers and care receivers. @*Conclusion@#To prevent burnout in primary family caregivers of persons with dementia, self-care of family caregivers should be emphasized. In nursing education, family caregivers should be recognized and approached as nursing clients who are responsible for taking care of their health. In nursing practice and research, digital self-care or self-care improvement intervention programs should be designed to help family caregivers, and further studies on self-care centered on health of family caregivers should be conducted.

Influence of Self-care on Burnout in Primary Family Caregiver of Person with Dementia

Purpose@#The purpose of this study was to identify the influence of self-care on burnout experienced by primary family caregivers of persons with dementia. @*Methods@#The subjects of the study were 156 primary family caregivers of persons with dementia at home in Korea. Data were analyzed using descriptive statistics, independent t-test, one-way ANOVA, Pearson correlation coefficient, and hierarchical multiple regression using IBM SPSS Statistics ver. 24.0 for Windows. @*Results@#The mean scores for self-care and burnout were 42.35 and 61.60, respectively. Self-care, subjective health status, living with a person with dementia, and behavioral and psychological symptoms of dementia were significant factors affecting burnout in family caregivers. Self-care was identified as the strongest factor affecting burnout, explaining 13.9% of burnout with controlling factors in caregivers and care receivers. @*Conclusion@#To prevent burnout in primary family caregivers of persons with dementia, self-care of family caregivers should be emphasized. In nursing education, family caregivers should be recognized and approached as nursing clients who are responsible for taking care of their health. In nursing practice and research, digital self-care or self-care improvement intervention programs should be designed to help family caregivers, and further studies on self-care centered on health of family caregivers should be conducted.

Utility of BRAF VE1 Immunohistochemistry as a Screening Tool for Colorectal Cancer Harboring BRAF V600E Mutation

BACKGROUND: BRAF mutation has been recognized as an important biomarker of colorectal cancer (CRC) for targeted therapy and prognosis prediction. However, sequencing for every CRC case is not cost-effective. An antibody specific for BRAF V600E mutant protein has been introduced, and we thus examined the utility of BRAF VE1 immunohistochemistry for evaluating BRAF mutations in CRC. METHODS: Fifty-one BRAF-mutated CRCs and 100 age and sexmatched BRAF wild-type CRCs between 2005 and 2015 were selected from the archives of Asan Medical Center. Tissue microarrays were constructed and stained with BRAF VE1 antibody. RESULTS: Forty-nine of the 51 BRAF-mutant CRCs (96.1%) showed more than moderate cytoplasmic staining, except for two weakly stained cases. Six of 100 BRAF wild-type cases also stained positive with BRAF VE1 antibody; four stained weakly and two stained moderately. Normal colonic crypts showed nonspecific weak staining, and a few CRC cases exhibited moderate nuclear reactivity (3 BRAF-mutant and 10 BRAF wild-type cases). BRAF-mutated CRC patients had higher pathologic stages and worse survival than BRAF wild-type patients. CONCLUSIONS: BRAF VE1 immunohistochemistry showed high sensitivity and specificity, but occasional nonspecific staining in tumor cell nuclei and normal colonic crypts may limit their routine clinical use. Thus, BRAF VE1 immunohistochemistry may be a useful screening tool for BRAF V600E mutation in CRCs, provided that additional sequencing studies can be done to confirm the mutation in BRAF VE1 antibody-positive cases.

Maternal Death due to Acute Fatty Liver of Pregnancy / 대한법의학회지

Acute fatty liver of pregnancy (AFLP) is one of the sudden unexpected causes in pregnancy and maternal deaths. It has been considered as a potential fatal disease in pregnancy, but the postmortem findings of AFLP is not well known. Because an unexpected maternal death may lead to a legal dispute, forensic pathologists should be aware of clinical presentations and postmortem findings of AFLP. Therefore, we presented our case and reviewed with literatures.

Malignant Solitary Fibrous Tumor with Heterologous Rhabdomyosarcomatous Differentiation: A Case Report

Malignant solitary fibrous tumor (MSFT) is a well-described entity, from which heterologous differentiation is extremely rare. We encountered a case of MSFT with rhabdomyosarcomatous differentiation in a 56-year-old man. This patient presented with a large mass in his posterior thigh. He had been treated with chemoradiation for sarcoma involving the cervical spine, right femoral head, and both lungs 6 months earlier. A wide excision was performed. The mass measured 10.6 cm and showed a fish-flesh cut surface with necrotic foci. Microscopically, the tumor showed heterogeneous cellularity with a hemangiopericytic vascular pattern. A hypercellular area showed spindle cells or epithelioid cells with high mitotic activity (63/10 high-power fields) and immunoreactivity for CD34 and CD99. A hypocellular area and a cystic area showed pleomorphic rhabdoid cells with immunoreactivity for desmin and myogenin. This is a report of a rare case of MSFT with rhabdomyosarcomatous differentiation and presents new histologic features of MSFT.