Preservation of the heart in ancient Egyptian mummies: A computed tomography investigation with focus on the myocardium.

The ancient Egyptians considered the heart to be the most important organ. The belief that the heart remained in the body is widespread in the archeological and paleopathological literature. The purpose of this study was to perform an overview of the preserved intrathoracic structures and thoracic and abdominal cavity filling, and to determine the prevalence and computed tomography (CT) characteristics of the myocardium in the preserved hearts of ancient Egyptian mummies. Whole-body CT examinations of 45 ancient Egyptian mummies (23 mummies from the Ägyptisches Museum und Papyrussammlung, Berlin, Germany, and 22 mummies from the Museo Egizio, Turin, Italy) were systematically assessed for preserved intrathoracic soft tissues including various anatomical components of the heart (pericardium, interventricular septum, four chambers, myocardium, valves). Additionally, evidence of evisceration and cavity filling was documented. In cases with identifiable myocardium, quantitative (measurements of thickness and density) and qualitative (description of the structure) assessment of the myocardial tissue was carried out. Heart structure was identified in 28 mummies (62%). In 33 mummies, CT findings demonstrated evisceration, with subsequent cavity filling in all but one case. Preserved myocardium was identified in nine mummies (five male, four female) as a mostly homogeneous, shrunken structure. The posterior wall of the myocardium had a mean maximum thickness of 3.6 mm (range 1.4-6.6 mm) and a mean minimum thickness of 1.0 mm (range 0.5-1.7 mm). The mean Hounsfield units (HU) of the myocardium at the posterior wall was 61 (range, 185-305). There was a strong correlation between the HU of the posterior wall of the myocardium and the mean HU of the muscles at the dorsal humerus (R = 0.77; p = 0.02). In two cases, there were postmortem changes in the myocardium, most probably due to insect infestation. To our knowledge, this is the first study to investigate the myocardium systematically on CT scans of ancient Egyptian mummies. Strong correlations between the densities of the myocardium and skeletal muscle indicated similar postmortem changes of the respective musculature during the mummification process within individual mummies. The distinct postmortem shrinking of the myocardium and the collapse of the left ventriclular cavity in several cases did not allow for paleopathological diagnoses such as myocardial scarring.

Hit or miss - A metagenomic evaluation of intra-bone variability of host pathogen load in tuberculosis-infected human remains.

Many sampling protocols have been established to successfully retrieve human DNA from archaeological remains, however the systematic detection of ancient pathogens remains challenging. Here, we present a first assessment of the intra-bone variability of metagenomic composition in human skeletal remains and its effect on the sampling success for Mycobacterium tuberculosis (MTB) and human endogenous DNA. For this purpose, four bone samples from published peer-reviewed studies with PCR-based evidence for ancient MTB DNA were selected. Two bone samples of a Neolithic individual from Halberstadt, Germany and two ribs of two 18th-century Hungarian church mummies were sampled at multiple locations for equal amounts, followed by DNA extraction and library construction. Shotgun sequencing data was generated for taxonomic profiling as well as quantitative and qualitative evaluation of MTB and human endogenous DNA. Despite low variance in microbial diversity within and across samples, intra-bone variability of up to 36.45- and 62.88-fold for authentic ancient MTB and human reads, respectively, was detected. This study demonstrates the variable sampling success for MTB and human endogenous DNA within single skeletal samples despite relatively consistent microbial composition and highlights how a multisampling approach can facilitate the detection of hotspots with highly concentrated pathogen and human endogenous DNA.

Postmortem changes in ancient Egyptian child mummies: Possible pitfalls on CT images.

OBJECTIVE: To identify and interpret computed tomography (CT) findings of postmortem changes in ancient Egyptian child mummies. MATERIALS: Whole-body CT examinations of 21 ancient Egyptian child mummies from German (n = 18), Italian (n = 1), and Swiss museums (n = 2). METHODS: Conspicuous CT findings from prior evaluations with various research questions that were assessed as postmortem changes were classified, and special cases were illustrated and discussed. RESULTS: Postmortem changes were classified into several categories. From these, individuals with evidence of invasion of resin/oil/tar into bone, dried fluid-levels within bone most likely due to natron, probable interaction of natron with soft tissues and bone, as well as insect infestation were demonstrated. CONCLUSIONS: One challenge of paleoradiology is to differentiate between intravital and postmortem changes, which can be multifarious. These changes can be obvious, but also subtle, and can mimic diseases. SIGNIFICANCE: The provided classification of postmortem changes, as well as the demonstrated cases, may serve as models for further paleoradiological investigations. The dried intraosseous fluid levels in two mummies, most likely due to natron, suggests that these children were immersed in a liquid natron bath, in contrast to the current scientific view that natron for mummification was routinely applied in the solid form. LIMITATIONS: CT was used as the only examination method, as sampling of the mummies was not possible. SUGGESTIONS FOR FURTHER RESEARCH: The awareness that postmortem changes on CT images of ancient Egyptian mummies might mimic pathology should be raised to reduce or avoid incorrect interpretation.

On some mummy findings from the Semmelweis Museum of Medical History, Hungarian National Museum, Budapest.

The permanent exhibition of the Hungarian National Museum, Semmelweis Museum of Medical History of Budapest, Hungary, displays some human remains believed to originate from ancient Egypt. Within the framework of the Nephthys Project, three objects consisting of two heads and one foot were studied via paleoimaging and archaeometric techniques in order to provide new anthropological and paleopathological data. It is argued here that even partial or fragmentary items are worthy of investigation as they can reveal new information about their owners, as well as their supposed authenticity.

Alfredo Salafia's handwritten memoir and the embalming of Rosalia Lombardo: a commentary.

Alfredo Salafia, an Italian embalmer who was active in the early 20th century, treated a number of corpses with his own preservation method. Among them was the young Rosalia Lombardo, just shy of two years old at the time of her death, whose remarkable preservation has brought her significant attention. It is well documented that Salafia had concocted a formula for a highly advanced embalming fluid which is believed to have been used to preserve Lombardo. This is referenced in a book and in two unpublished documents, and was also traced through familial memories and stories within the Capuchin Brotherhood of Palermo, where three of those bodies embalmed by Salafia are kept in a world-renowned crypt. Salafia's paternity of this specific preparation is further supported by some indirect evidence, which corresponds to what the embalmer described in his handwritten memoir. A recent article by Galassi and co-workers, however, attempted to debunk Salafia's role, and questioned the results of previous research performed on this case. They suggest additional studies on Lombardo that are not only unnecessary, but would irreversibly damage the long-term conservation of the mummy. Our paper aims to demonstrate that their article is biased and built upon incorrect assumptions and interpretations, thus re-establishing the validity of the narrative shared up until now.

Metagenomic analysis reveals mixed Mycobacterium tuberculosis infection in a 18th century Hungarian midwife.

The Vác Mummy Collection comprises 265 well documented mummified individuals from the late 16th to the early 18th century that were discovered in 1994 inside a crypt in Vác, Hungary. This collection offers a unique opportunity to study the relationship between humans and pathogens in the pre-antibiotic era, as previous studies have shown a high proportion of tuberculosis (TB) infections among the individuals. In this study, we recovered ancient DNA with shotgun sequencing from a rib bone sample of a 18th century midwife. This individual is part of the collection and shows clear skeletal changes that are associated with tuberculosis and syphilis. To provide molecular proof, we applied a metagenomic approach to screen for ancient pathogen DNA. While we were unsuccessful to recover any ancient Treponema pallidum DNA, we retrieved high coverage ancient TB DNA and identified a mixed infection with two distinct TB strains by detailed single-nucleotide polymorphism and phylogenetic analysis. Thereby, we have obtained comprehensive results demonstrating the long-time prevalence of mixed infections with the sublineages L4.1.2.1/Haarlem and L4.10/PGG3 within the local community in preindustrial Hungary and put them in context of sociohistorical factors.

Radiological evidence of purulent infections in ancient Egyptian child mummies.

OBJECTIVE: To identify computed tomography (CT) findings of purulent infections in ancient Egyptian child mummies. MATERIALS: Whole-body CT examination of 21 ancient Egyptian child mummies from German (n = 18), Italian (n = 1), and Swiss museums (n = 2). METHODS: CT examinations were evaluated for estimation of age at death and sex of the children. CT examinations were systematically assessed for any CT findings of purulent infection. RESULTS: The estimated age at death of the children ranged from about one year to the age of 12-14 years (mean 4.8 years). Twelve children were assessed as male, seven as female and in two sex was indeterminate. Three out of 21 child mummies (14.3%) had radiological evidence of purulent infections. In one mummy, a bandage-like structure at the right lower leg was detected that most likely represented a dressing of a skin lesion. CONCLUSIONS: This study appears to be the first to describe radiologically visualized structures consistent with dried pus in ancient Egyptian mummies. This study also appears to be the first to physically demonstrate an original ancient Egyptian dressing. SIGNIFICANCE: These cases may serve as models for further paleopathological investigation. The evidence of an original dressing contributes to our knowledge of ancient Egyptian medicine. LIMITATIONS: CT was used as the only examination method as sampling of the wrapped mummies was not possible. SUGGESTIONS FOR FURTHER RESEARCH: Radiological-pathological correlation in mummies in which physical sampling is available may reveal further insights into purulent infections in ancient Egypt.

Correlation of atherosclerosis and osteoarthritis in ancient Egypt: A standardized evaluation of 45 whole-body CT examinations.

OBJECTIVE: To correlate atherosclerosis (Ath) and osteoarthritis (OA) in mummies from ancient Egypt. MATERIALS: Whole-body CT examinations of 23 mummies from the Ägyptisches Museum und Papyrussammlung, Berlin, Germany, and 22 mummies from the Museo Egizio, Turin, Italy. METHODS: Ath was assessed in five anatomical regions by means of preserved arterial calcifications. OA was assessed using the Kellgren and Lawrence (1957) classification. RESULTS: Statistical analysis revealed no correlation between Ath and total OA. A significant association was found for Ath and the upper limb group for OA grade >1 and for Ath and the lower limb group, consisting mainly of the hip and knee, for OA grade >2 OA. CONCLUSIONS: The association of Ath and advanced OA of the hip and knee is comparable in prevalence to those reported in recent clinical studies, despite the low life expectancy and the different environment and lifestyle of the ancient Egyptians. SIGNIFICANCE: This is the first study to correlate findings of Ath and OA in ancient Egypt statistically. The diseases of Ath and OA are common ailments with enormous and increasing impacts on public health. LIMITATIONS: The large number of cardiovascular diseases was indicated only by arterial calcifications that resisted the post-mortem changes of the mummification process. Also, the assessed OA was on radiological OA. SUGGESTIONS FOR FURTHER RESEARCH: Genomic studies of ancient Egyptian mummies may reveal genetic risk factors for Ath and OA that could be shared in ancient and modern populations.

The Current Situation of the Tyrolean Iceman.

The Tyrolean Iceman, commonly known as Ötzi, is the world's oldest glacier mummy and one of the best investigated ancient human remains in the world. Since the discovery of the 5,300-year-old Copper Age individual in 1991, in a glacier in the Eastern Italian Alps, a variety of morphological, biochemical, and molecular analyses have been performed that revealed important insights into his origin, his life habits, and the circumstances surrounding his demise. In more recent research, the mummy was subjected to cutting-edge modern research methodologies currently focusing on high-throughput sequence analysis of ancient biomolecules (DNA, proteins, lipids) that are still preserved in the mummified tissues. This application of innovative "-omics" technologies revealed novel insights on the ancestry, disease predisposition, diet, and the presence of pathogens in the glacier mummy. In this review, the most important and actual results of the molecular studies will be highlighted.

Evidence of aortic dissection and Marfan syndrome in a mummy from the Capuchin Catacombs of Palermo, Sicily.

The authors report on the assessment of an anthropogenic mummy of a young man from the Capuchin Catacombs of Palermo, Sicily, tentatively dated from the mid- to late 19th century AD. The mummy was investigated by full-body CT examination. CT images clearly showed aortic dissection classified as Stanford-A. Due to the relation of aortic dissection to inherited connective tissue diseases in young people, such as Marfan syndrome, conspicuous and pathological findings possibly indicating the presence of underlying Marfan syndrome were assessed. Several systemic features were scored that supported the presence of underlying Marfan syndrome in this mummy. These findings were: pectus carinatum and chest asymmetry, dural ectasia, protrusio acetabuli, dolichocephaly, down-slanting palpebral fissures, malar hypoplasia and (probable) reduced elbow extension. Aortic dissection, a cardinal feature of Marfan syndrome, turned out to be the diagnostic key for the paleoradiological diagnosis of this disease. The demonstrated CT findings contribute to the spectrum of cardiovascular diseases and inherited connective tissue disease in the fields of paleopathology and paleoradiology.

CT checklist and scoring system for the assessment of soft tissue preservation in human mummies: application to catacomb mummies from Palermo, Sicily.

In this study we applied the recently developed "Checklist and Scoring System for the Assessment of Soft Tissue Preservation in Human Mummies" to catacomb mummies from Palermo, Sicily. Data from twenty-three full-body computed tomography (CT) examinations were available. These consisted of seventeen adults and six children dating from the late 18th to the late 19th centuries AD. Seventeen of these mummies were anthropogenically mummified, and six spontaneously. Based on the checklist and scoring system, soft tissue preservation varied between both mummification groups, among mummies with the same type of mummification, and within individual mummies at different anatomical locations. Checkpoints of the main category "A. Soft Tissues of Head and Musculoskeletal System" were clearly more frequent than checkpoints of the main category "B. Organs and Organ Systems". Among the anthropogenic mummies, intra-arterial filling achieved the highest preservation status of organs and organ systems. Despite the small sample size, the statistical evaluation showed significant differences between mummification types, with the highest soft tissue preservation found in anthropogenic mummies. Application of the "Checklist" allowed a standardized assessment and documentation of the soft tissue preservation of these mummies. The "Scoring System" facilitated a comparison among mummification groups and mummies by means of numeric values.

Checklist and Scoring System for the Assessment of Soft Tissue Preservation in CT Examinations of Human Mummies: Application to the Tyrolean Iceman.

Purpose Soft tissues make a skeleton into a mummy and they allow for a diagnosis beyond osteology. Following the approach of structured reporting in clinical radiology, a recently developed checklist was used to evaluate the soft tissue preservation status of the Tyrolean Iceman using computed tomography (CT). The purpose of this study was to apply the "Checklist and Scoring System for the Assessment of Soft Tissue Preservation in CT Examinations of Human Mummies" to the Tyrolean Iceman, and to compare the Iceman's soft tissue preservation score to the scores calculated for other mummies. Materials and Methods A whole-body (CT) (SOMATOM Definition Flash, Siemens, Forchheim, Germany) consisting of five scans, performed in January 2013 in the Department of Radiodiagnostics, Central Hospital, Bolzano, was used (slice thickness 0.6 mm; kilovolt ranging from 80 to 140). For standardized evaluation the "CT Checklist and Scoring System for the Assessment of Soft Tissue Preservation in Human Mummies" was used. Results All checkpoints under category "A. Soft Tissues of Head and Musculoskeletal System" and more than half in category "B. Organs and Organ Systems" were observed. The scoring system accounted for a total score of 153 (out of 200). The comparison of the scores between the Iceman and three mummy collections from Vilnius, Lithuania, and Palermo, Sicily, as well as one Egyptian mummy resulted in overall higher soft tissue preservation scores for the Iceman. Conclusion Application of the checklist allowed for standardized assessment and documentation of the Iceman's soft tissue preservation status. The scoring system allowed for a quantitative comparison between the Iceman and other mummies. The Iceman showed remarkable soft tissue preservation. Key Points · The approach of structured reporting can be transferred to paleoradiology.. · The checklist allowed for standardized soft tissue assessment and documentation.. · The scoring system facilitated a quantitative comparison among mummies.. · Based on CT, the Tyrolean Iceman demonstrated remarkable soft tissue preservation.. Citation Format · Panzer S, Pernter P, Piombino-Mascali D et al. Checklist and Scoring System for the Assessment of Soft Tissue Preservation in CT Examinations of Human Mummies: Application to the Tyrolean Iceman. Fortschr Röntgenstr 2017; 189: 1152 - 1160.

Checklist and Scoring System for the Assessment of Soft Tissue Preservation in CT Examinations of Human Mummies.

The purpose of this study was to develop a checklist for standardized assessment of soft tissue preservation in human mummies based on whole-body computed tomography examinations, and to add a scoring system to facilitate quantitative comparison of mummies. Computed tomography examinations of 23 mummies from the Capuchin Catacombs of Palermo, Sicily (17 adults, 6 children; 17 anthropogenically and 6 naturally mummified) and 7 mummies from the crypt of the Dominican Church of the Holy Spirit of Vilnius, Lithuania (5 adults, 2 children; all naturally mummified) were used to develop the checklist following previously published guidelines. The scoring system was developed by assigning equal scores for checkpoints with equivalent quality. The checklist was evaluated by intra- and inter-observer reliability. The finalized checklist was applied to compare the groups of anthropogenically and naturally mummified bodies. The finalized checklist contains 97 checkpoints and was divided into two main categories, "A. Soft Tissues of Head and Musculoskeletal System" and "B. Organs and Organ Systems", each including various subcategories. The complete checklist had an intra-observer reliability of 98% and an inter-observer reliability of 93%. Statistical comparison revealed significantly higher values in anthropogenically compared to naturally mummified bodies for the total score and for three subcategories. In conclusion, the developed checklist allows for a standardized assessment and documentation of soft tissue preservation in whole-body computed tomography examinations of human mummies. The scoring system facilitates a quantitative comparison of the soft tissue preservation status between single mummies or mummy collections.

Paleoradiology of the Savoca Mummies, Sicily, Italy (18th-19th Centuries AD).

Mummified remains have been successfully studied radiologically since the end of the 19th century, giving rise to a specific field of research-paleoradiology. In this paper, we present the results of the first radiological investigation of a collection of Sicilian mummies found in a subterranean chamber beneath the Capuchin Church of Savoca. The chamber contains a number of preserved bodies, either held in special niches in the walls or interred within coffins. A recent detailed radiological examination of these mummies allowed the authors to determine information relating to the funerary treatment and some of the pathological alterations witnessed in the remains. Specifically, evidence of gout and DISH was identified, along with frequent degenerative joint disease, suggestive of rich dietary habits and a longer life expectancy. These findings were interpreted in the light of historical information and the social status of the subjects concerned.

Is atherosclerosis fundamental to human aging? Lessons from ancient mummies.

Case reports from Johan Czermak, Marc Ruffer, and others a century or more ago demonstrated ancient Egyptians had atherosclerosis three millennia ago. The Horus study team extended their findings, demonstrating that atherosclerosis was prevalent among 76 ancient Egyptian mummies and among 61 mummies from each of the ancient cultures of Peru, the American Southwest, and the Aleutian Islands. These findings challenge the assumption that atherosclerosis is a modern disease caused by present day risk factors. An extensive autopsy of an ancient Egyptian teenage male weaver named Nakht found that he was infected with four parasites: Schistosoma haematobium, Taenia species, Trichinella spiralis, and Plasmodium falciparum. Modern day patients with chronic inflammatory disease such as rheumatoid arthritis, systemic lupus erythematosus, and human immunodeficiency virus experience premature atherosclerosis. Could the burden of chronic inflammatory disease have been a risk factor for atherosclerosis in these ancient cultures? The prevalence of atherosclerosis in four diverse ancient cultures is consistent with atherosclerosis being fundamental to aging. The impact of risk factors in modern times, and potentially in ancient times, suggests a strong gene-environmental interplay: human genes provide a vulnerability to atherosclerosis, the environment determines when and if atherosclerosis becomes manifest clinically.

Multidetector CT investigation of the mummy of Rosalia Lombardo (1918-1920).

Whole-body multidetector computed tomography (CT) was performed on the mummified corpse of two-year-old Rosalia Lombardo, an anthropogenic mummy displayed in the Capuchin Catacombs of Palermo, Sicily, Italy. Rosalia Lombardo reportedly died of bronchopneumonia in 1920 and was preserved by the embalmer and taxidermist Alfredo Salafia with a formaldehyde-based fluid. Rosalia Lombardo's body is still exhibited in the Capuchin Catacombs inside the original glass-topped coffin in which she was placed. Only her head is visible: the rest of her body is covered by a sheet. CT images of Rosalia's body within her coffin were of reduced quality because of distinct metal artifacts caused by the coffin itself. Nevertheless, a detailed radiological analysis was possible for most of the body. Analysis of the data from the CT examination revealed indicators for the historically-reported endovasal and intracavity treatment. Rosalia's entire body was preserved in a remarkable state. The exceptional preservation of her internal organs made it possible to consider a radiological diagnosis of pneumonia. For this study, CT was determined to be the ultimate method for investigation, since Rosalia's body had to be kept untouched in her sealed coffin for conservation purposes. The CT examination offered new insights into the current preservation status of the body, and the superior contrast of CT allowed detailed assessment of different tissues. Post-processing methods provided reconstructions on any desired plane, as well as three-dimensional reconstruction, for the best possible visualization and interpretation of the body.

Parasitism of the Zweeloo Woman: Dicrocoeliasis evidenced in a Roman period bog mummy.

We undertook the analysis of Zweeloo Woman, a bog mummy from the Netherlands, to assess her parasitic state. Evidence of infection came from two areas: (1) liver paraffin sections and (2) microfossils washed from an intestinal section. Although the liver had shrunken considerably, objects consistent with operculated trematode eggs were found. After evaluating the range of trematode species that produce eggs in liver tissue, we arrived at the diagnosis of Dicrocoelium dendriticum. Although only 0.1ml of sediment was recovered from an intestinal section, eggs of Ascaris lumbricoides and Trichuris trichiura were also identified. No eggs of D. dendriticum were revealed by the intestinal wash although they were observed in the liver. The lancet fluke, D. dendriticum, is a zoonosis that usually infects ruminants such as cattle. Eggs of D. dendriticum may be found in human coprolites if infected cow liver, for example, was eaten. This is false parasitism. Since eggs of D. dendriticum were found in the liver of Zweeloo Woman, we are assured this was a true infection. This find is especially significant because it is the oldest known, patent infection of D. dendriticum in humans.