Read by QxMD icon Read

Liver embryology

Kipp Weiskopf, Peter J Schnorr, Wendy W Pang, Mark P Chao, Akanksha Chhabra, Jun Seita, Mingye Feng, Irving L Weissman
The hematopoietic stem cell (HSC) is a multipotent stem cell that resides in the bone marrow and has the ability to form all of the cells of the blood and immune system. Since its first purification in 1988, additional studies have refined the phenotype and functionality of HSCs and characterized all of their downstream progeny. The hematopoietic lineage is divided into two main branches: the myeloid and lymphoid arms. The myeloid arm is characterized by the common myeloid progenitor and all of its resulting cell types...
October 2016: Microbiology Spectrum
Shilpi Agarwal, Babita Pangtey, Neelam Vasudeva
Knowledge of variations in the branching pattern of Celiac Trunk (CT) is important for surgeries of stomach, duodenum, pancreas and hepatobiliary region, for abdominal aortic aneurysm, for liver transplant and chaemoembolization of hepatic tumours. An unusual variation in the branching pattern of CT was observed in 50-year-old male cadaver of Indian origin. CT divided into six branches out of which right & left inferior phrenic arteries originated as first two branches and left gastric artery as the third branch...
June 2016: Journal of Clinical and Diagnostic Research: JCDR
Osama S Al Beteddini, Nasir K Amra, Emad Sherkawi
Ciliated foregut cysts are rare anomalies arising from remnants of aberrant embryological development. Around 100 reports on the presence of these congenital masses in the tracheobronchial tree, mediastinum, liver, pancreas and, rarely, the gallbladder have been described. In this article, the case of a 33-year-old woman, who was operated for a laparoscopic cholecystectomy, is presented. During the dissection of the triangle of Calot, a cystic mass, attached to the common hepatic duct, was discovered incidentally...
December 2016: Surgical Case Reports
Mee-Jin Lee, James Salinas, Winny Varikatthas, Ghiyath Alsnih
INTRODUCTION: Ciliated foregut cysts (CFC) are rare anomalies due to aberrant embryological development. It is thought to arise from a remnant of the embryologic foregut. The solitary cysts are characterised by ciliated pseudostratified columnar epithelium. They are usually located above the diaphragm but they can also arise in relation to the liver, gallbladder and pancreas. PRESENTATION OF CASE: We present the first ciliated foregut cyst of the gallbladder case reported in Australia, and the ninth known case to be reported worldwide...
2016: International Journal of Surgery Case Reports
Anas Alakkam, Robert V Hill, Gregory Saggio
The hepatic arteries are subject to a great deal of anatomical variation, potentially complicating hepatobiliary surgical procedures as well as general gastrointestinal procedures that involve foregut and midgut structures. We report a case of a rare variant of the proper hepatic artery discovered during dissection of an 84-year-old male cadaver. In this individual, the common hepatic artery was absent and the proper hepatic artery was replaced directly to the superior mesenteric artery. The gastroduodenal artery and the right inferior phrenic artery took origin from the celiac trunk...
August 2016: Surgical and Radiologic Anatomy: SRA
Lakshana Selvaraj, Indumathi Sundaramurthi
INTRODUCTION: Blood vessel anomalies are always interesting from embryological view and of considerable significance from a clinical or a surgical standpoint. Vascular anomalies are usually asymptomatic; they may cause problems in patients undergoing diagnostic angiography or any operative procedure. The length and course of the coeliac artery are variable and its branches frequently arise separately from the main trunk. Several other branches may additionally arise from the coeliac trunk, for example, inferior phrenic arteries, the dorsal pancreatic artery, and the middle colic artery...
September 2015: Journal of Clinical and Diagnostic Research: JCDR
Christine K C Loo, Tamara N Pereira, Katarzyna N Pozniak, Mette Ramsing, Ida Vogel, Grant A Ramm
The precise embryological origin and development of hepatic stellate cells is not established. Animal studies and observations on human fetuses suggest that they derive from posterior mesodermal cells that migrate via the septum transversum and developing diaphragm to form submesothelial cells beneath the liver capsule, which give rise to mesenchymal cells including hepatic stellate cells. However, it is unclear if these are similar to hepatic stellate cells in adults or if this is the only source of stellate cells...
August 2015: Physiological Reports
Shirin Elizabeth Khorsandi, Neus Ruiz Edo, Hector Vilca-Melendez, Nigel Heaton
The following is the first report of a pediatric organ donor with caval agenesis and the subsequent use of this liver for transplantation. Caval embryology and potential implications of utilizing a donor liver with caval agenesis are reviewed.
September 2015: Pediatric Transplantation
Christine K C Loo, Tamara N Pereira, Grant A Ramm
Congenital bilateral diaphragm agenesis is a very rare condition. We describe limited (abdomen only) autopsy findings of a case of bilateral diaphragm agenesis in a 27-week male fetus with unusual findings of fibrosis of the pancreatic head and ectopic liver nodules in a mass at the upper abdomen that may represent a possible diaphragm anlage. We have correlated our observations with data from experimental and embryological studies to suggest possible mechanisms for the malformations that were present and their implications for our understanding of pancreas, liver and diaphragm development in the human fetus...
2015: Fetal and Pediatric Pathology
Adrian Hrusca, Andreea Liana Rachisan, Bogdan Lucian, Simona Oprita, Simona Manole, Simona Cainap
Ivemark syndrome (IS) is a rare embryological disorder which results from failure of development of the left-right asymmetry of organs. It is often associated with cardiac and other organ abnormalities, which are the usual causes of death in early neonatal life. We report a 3 months old girl with IS with dextrocardia, transposition of the great vessels, atrio-ventricular connection, total anomalous pulmonary venous drainage, a right atrial and right pulmonary isomerism, a midline liver, a midline gallbladder, asplenia, intestinal malrotation and vena cava anomalies...
March 2015: Revista Médica de Chile
Serpil Bas, Tulay Guran, Zeynep Atay, Belma Haliloglu, Saygın Abalı, Serap Turan, Abdullah Bereket
Congenital portosystemic shunt (CPSS) is persistence of an anomalous embryological connection of the portal vein with a large vein of the vena cava system. Clinical presentations include neonatal cholestasis, liver tumors, and encephalopathy, but can be variable in timing and symptomatology. We report 2 girls who presented 10 years apart with the same complaint of early pubarche at age 7 years, with inappropriately low DHEAS levels. In addition to hyperandrogenemia (elevated testosterone and androstenedione) and advanced bone age, both had hyperinsulinemia, and hypothyroxinemia...
2015: Hormone Research in Pædiatrics
S Louryan, N Vanmuylder
The specimen of which it is a matter here takes part of the heritage of the Museum of Anatomy and Embryology of the Faculty of Medicine of the Université Libre de Bruxelles. Its medical history is completely unknown, because it takes part of an ancient collection of pathological anatomy saved from destruction and recovered by the laboratory of Anatomy and Embryology. The specimen is strongly folded up on itself ("in extension"), its length so arranged is about 25 cm; unfolded, it develops to 45 cm. Cranial perimeter is of 31 cm...
March 2015: Morphologie: Bulletin de L'Association des Anatomistes
T R Kannaki, M R Reddy, P C Verma, M Shanmugam
Toll-like receptors (TLRs), important components of innate immune response, play a pivotal role in early recognition of pathogen as well as in the initiation of robust and specific adaptive immune response. In the present study, the expression profile of chicken TLRs (TLR2A, TLR3, TLR4, TLR5, TLR7, TLR15, and TLR21) in various chicken embryonic tissues during embryo development was examined by real-time PCR assay. All the TLR mRNAs were expressed in whole embryonic tissue as early as 3rd embryonic day (ED)...
2015: Animal Biotechnology
Nilesh V Kasar, Yogesh S Deole, Shivprasad Tiwari
Ayurveda has its own view to understand the development of human body and its various organs. As the quotations are in a concise manner, it is essential to amalgamate the basics stated by various Acharyas with comprehensive explanation of modern science. The liver is a vital organ for metabolism. Acharyas have opined about the genesis of Yakrut (liver) from Rakta Dhatu (blood tissue). Parallel opinion in conventional anatomy states that abundant quantity of blood is responsible for the formation of sinusoids of liver...
January 2014: Ayu
Rashmoni Jana, Pushpa Dhar
The knowledge of variations in the large intestine and liver is of clinical importance from the anatomical and embryological points of view. Different positions of the hepatic flexure of large intestine, although generally asymptomatic, may have different impact on manifestations of disease. During routine cadaveric study of the abdominal region we observed a case where the hepatic flexure was interposed between the right dome of the diaphragm and the anterior surface of the liver. The liver appeared bilobulated and on the anterior surface the right and left hepatic lobes were separated by a deep furrow...
2014: Italian Journal of Anatomy and Embryology, Archivio Italiano di Anatomia Ed Embriologia
Yong Han Ting, Kian Soon Lim
BACKGROUND: Improvements in hepatobiliary surgical techniques, with increased usage of segmental and subsegmental resection, make accurate preoperative radiological assessment delineation of the liver segments ever more crucial. Conventionally, this is done by drawing imaginary straight planes along the portal and hepatic veins. We herein report a rare case of a horizontal cleft between the superior and inferior liver segments seen on CT. CASE REPORT: A 74-year-old female patient with a known medical history of ovarian cancer with peritoneal metastasis and retroperitoneal lymphadenopathy was referred to our department for CT to assess disease response after treatment...
2014: American Journal of Case Reports
Sanjib Kumar Ghosh
Johann Vesling (1598-1649) was a German anatomist and surgeon who belonged to the golden period of the illustrious University of Padua. He made significant contributions to the advancement of anatomical knowledge during the 17th century and is remembered most for his remarkable anatomical work, the Syntagma Anatomicum, which was published in 1641. He was the first to describe the soleus muscle and to emphasize its resemblance to the sole fish. He produced the earliest illustrations of the human lymphatic system and was one of the first to document observations about the thoracic duct...
November 2014: Clinical Anatomy
Janakiraman Saravanan, Govindhan Manoharan, Satheyanesan Jeswanth, Palaniyappan Ravichandran
Ciliated hepatic foregut cysts (CHFCs) are rare congenital cysts of the liver that originate from the embryologic foregut. Despite an increase in incidence, they remain rare and several key characteristics remain poorly understood, including the range of presentation and the risk of malignant conversion. Large, symptomatic cysts and small asymptomatic, atypical cysts should be resected. We present a patient who recently underwent laparoscopic excision of a CHFC, review the literature and propose the rationale for attempting removal of these cysts through a laparoscopic approach...
July 2014: Journal of Minimal Access Surgery
Alexandros Giakoustidis, Dawn Morrison, Andrew Thillainayagam, Gordon Stamp, Vishy Mahadevan, Satvinder Mudan
Ciliated foregut cysts are rare anomalies due to aberrant embryological development. Only a small number of gallbladder ciliated foregut cysts have been reported. We report the case of a 29-year-old woman presenting with epigastric pain associated with diarrhoea and vomiting, who was found to have raised serum bilirubin levels and abnormal liver function tests. Following a diagnostic pathway including abdominal ultrasound, magnetic resonance cholangiopancreatography and endoscopic ultrasound the gallbladder cyst was provisionally diagnosed to be a cyst arising from the cystic duct or a duplicated gallbladder...
June 2014: Journal of Gastrointestinal and Liver Diseases: JGLD
Sanjib Kumar Ghosh, Suranjali Sharma, Sudipa Biswas, Soumya Chakraborty
Adriaan van den Spiegel (1578-1625) was a Flemish anatomist and physician. He was one of the most prominent anatomists at the University of Padua during the 17th century and became professor of anatomy and surgery there in 1619. He was privileged to have two of the most accomplished anatomists of that period, Fabricius ab Aquapendente and Iulius Casserius, as his teachers. His anatomical works were published after his death by his pupil Bucretius and his son-in-law Liberalis Crema, with illustrations procured from Casserius's unpublished anatomical atlas...
October 2014: Clinical Anatomy
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"