Miroslav Milić

Morphology of the cerebral arterial circle in the prenatal and postnatal period of Serbian population

BackgroundIn the literature, there are descriptions of morphological types of the cerebral arterial circle (CAC) of different human populations around the world, but not the Serbian population. This additionally inspired the authors to present the results of previous and current researches of CAC’s configuration in the prenatal, as well as in the postnatal period.MethodThe study was performed on CACs of 190 human fetuses and 143 adult cadavers. The caliber and configuration of fetal vessels were examined under the operating microscope, while the same of adults were studied using the ImageJ. Statistical analysis of CACs vessels’ calibers was performed. Classification into one of CAC morphological types was based on the presence of hypoplasia of corresponding vessel(s).ResultsThere was not only significant difference of the three communicating arteries calibers before and beyond the 16th week of gestation. Calibers of the right pre-communicating part of the posterior cerebral artery and right cerebral part of the internal carotid artery were significantly higher in male than in female adults. There were 13 morphological types of CACs from the prenatal to the postnatal period. Most frequent CAC types were the type I (normal CAC) prenatally and type IV (unilateral hypoplasia of the posterior communicating artery) in the postnatal period. There were not relationships between the cerebral cause of death and a presence of aneurysm.ConclusionResults of this study will be the basis for future investigation of CACs according to the same or different ages and causes of disease and/or death.

An excess vessel in the posterior part of the human cerebral arterial circle (CAC): a case series

BackgroundAs a continuation of the previous findings in human fetuses, accidental finding of an accessory vascular component in the posterior part of CAC of human adult cadavers inspired the authors to present and compare its posterior part configuration.Case presentationExamination was carried out on brains of 48 human adult cadavers, routinely dissected at the Institute of Forensic Medicine. The aberrant vessel in the posterior part of four CACs was discovered.Vascular components of the posterior segment of CAC or of the whole CAC were described and photographed. A comparison between fetal and adult cases was also presented.ConclusionsBased on the fact that the age of the four presented cases ranged from 73 to 84 and based on the causes of their death, we concluded that the angioarchitecture of the posterior part of the CAC is a consequence of the embryonic or primitive arterial stabilization and interaction with normal adult vessels.

Three cases of death caused by shots from blank cartridge.

The authors describe 3 cases of lethal injuries caused by 7.62 mm blank cartridge shots from military automatic rifle of domestic origin (AK 47, 7.62 mm). In 1 case, the cartridge was fired from a weapon that had been leaned on the head, with subsequent destruction of brain, and in other 2 cases, the weapon had been leaned on the chests, which led to destruction of heart parts. The injuries were caused by the action of striking wave of gunpowder explosion, the air blast type. The cases demonstrate that the gas pressure from the exploding propellant of blank cartridge is powerful enough to penetrate the thoracic wall and the skull.

Morphometric analysis of somatotropic cells of the adenohypophysis and muscle fibers of the psoas muscle in the process of aging in humans.

The aim of this research was to quantify changes of the adenohypophyseal somatotropes and types 1 and 2 muscle fibers with aging, as well as to establish mutual interactions and correlations with age. Material was samples of hypophysis and psoas major muscle of 27 cadavers of both genders, aged from 30 to 90 years. Adenohypophyseal and psoas major tissue sections were immunohistochemically processed and stained by anti-human growth hormone and anti-fast myosin antibodies, respectively. Morphometric analysis was performed by ImageJ. Results of morphometric analysis showed a significant increase in the somatotrope area, and significant decrease in somatotrope volume density and nucleocytoplasmic ratio with age. Cross-sectional areas of types 1 and 2, and volume density of type 2 muscle fibers decreased significantly with age. One Way ANOVA showed that the latter cited changes in the somatotropes and types 1 and 2 muscle fibers mostly become significant after the age of 70. Significant positive correlation was observed between the area of the somatotropes and volume density of type 2 muscle fibers. A significant negative correlation was detected between the nucleocytoplasmic ratio of the somatotropes and cross-sectional areas of types 1 and 2 muscle fibers. So, it can be concluded that after the age of 70, there is significant loss of the anterior pituitarys somatotropes associated with hypertrophy and possible functional decline of the remained cells. Age-related changes in the somatotropes are correlated with the simultaneous atrophy of type 1, as well as with the atrophy and loss of type 2 muscle fibers.

Adrenal apoplexy caused by fulminant sepsis in 20-year-old healthy male?: case report

Introduction. Bilateral massive adrenal hemorrhage (BMAH) is a rare catastrophic condition that manifests with acute adrenal insufficiency. Death can occur within a few hours or after many days. BMAH in association with fulminant septicemia and sepsis occurring in children and young adults is also known as the Waterhouse-Friderichsen syndrome. Fulminant sepsis associated with purpura is lethal in 40–70% of patients. Case report. The abrupt onset of fever with sore throat occurred in a 20-year old man. Next day in the early morning, he complained of severe symptoms: generalized weakness, shortness of breath and myalgia. Few hours later petechial rash occur. Within 30 hours from first symptoms he died in hospital. On autopsy, there were macroscopic bilateral areas of adrenal hemorrhage. Autopsy also revealed hemorrhage in almost all organs and tissues. Microbiological blood culture and toxicological finding was negative. Discussion. In our case, very high levels of procalcitonin and D-dimer, with all other clinically and autopsy findings, was directing medical examiners that a main cause of death was fulminant bacterial sepsis. Blood culture did not reveal any bacteria, so the cause of BMAH stays uncovered. The bacteria that most often cause fulminant sepsis connected with BMAH and death within 12–24 hours from first symptoms is N. meningitidis. It is very likely that N. meningitidis caused BMAH in our case, but it will stay in domain of speculation.