No abstract available.
Chest Pain* ; Thorax*

No abstract available.
Urinary Incontinence*

No abstract available.
Humans ; Male* ; Osteoporosis*

No abstract available.
Cardiovascular System*

No abstract available.
Cardiovascular System*

No abstract available.
Humans ; Male*

The morphologic development of the liver in the embryonic period is described in serial sections of 18 human embryos representative of Horizons 12 to 23 . In the earliest specimen of horizon 12, the liver is seen as branching cord of endodermal cells originating from the hepatic diverticulum and invading into the loose stroma of septum transversum, transforming the surrounding stromal cells into primitive blood spaces and blood cells. Thereafter, the parenchymal cells rapidly proliferated so that the size of the organ was reaching a fifth of the CR length in horizon 23. The vascular system of the liver was in a symmetric configuration in horizon 12, which is composed of umbilical and vitelline veins and hepatocardiac channels on both sides. The evolution of the vascular system includes intergration of the vitelline veins into the portal vein, obliteration of the right umbilical vein and left hepatocardiac channel, and creation of the ductus venosus. The intrahepatic biliary tract is found to be formed by the "in situ transformation" mechanism, which involves transformation of the parenchymal cells, adjacent to the fibrous tissue surrounding the portal and umbilical veins, to networks of cuboidal epithelial cells lining the ductal lumen. These intrahepatic duct systems were found to communicate with the extrahepatic system at the porta hepatis.
Humans

Laryngeal atresia is a very rare congenital anomaly requiring immediate tracheotomy. We present a case of laryngeal atresia with tracheoesophageal fistula who showed immediate respiratory difficulty after ligation of umbilical cord and died of aspiration pneumonia at 8 days of age. The atretic portion of larynx is composed of irregulary arranged cartilaginous tissue, bundles of intrinsic muscle and soft tissue without epithelium-lined lumen. The lungs show normal development and evidences of aspiration pneumonia.
Infant, Newborn ; Humans

No abstract available.
Depression*

Exfoliative cytology of synovial fluid is less stressed in medical practice, but it can be a very useful tool for the differential diagnosis of various joint diseases. This report describes a case of juvenile rheumatoid arthritls in a 7 year old girl, who showed characteristic ragocytes in joint fluid. Synovial biopsy specimen confirmed the diagnosis of rheumatoid arthritis.
Diagnosis, Differential ; Biopsy