Electron microscopy and x-ray scanning microanalysis of needle biopsy material from human liver.
A study has been made of the fine structure of hepatic parenchymal cells of human biopsy material in a case of pancreatic tumor with obstructive jaundice. Dense particles about 60 A in diameter have been found in the cytoplasm, which are considered to be ferritin molecules by electron microscopy. They are encountered throughout the cytoplasmic matrix and are often aggregated in electron-transparent areas, most of which are enclosed by an apparently single-layered membrane. Identification of the elemental iron has been pursued by the application of the x-ray scanning microanalyser which reveals a quantitative value within 1.0 per cent of the pure iron sample. The use of x-ray scanning microanalysis enables one to obtain accurate data from extremely small and precisely defined volumes of biological specimens.
D001706:Biopsy; D001707:Biopsy, Needle; D003593:Cytoplasm; D004577:Electron Probe Microanalysis; D004583:Electrons; D005293:Ferritins; D006801:Humans; D007501:Iron; D007565:Jaundice; D041781:Jaundice, Obstructive; D008099:Liver; D008853:Microscopy; D008854:Microscopy, Electron; D010190:Pancreatic Neoplasms; D014965:X-Rays
D005293:Ferritins; D007501:Iron
BIOPSY; FERRITIN; JAUNDICE, OBSTRUCTIVE; LIVER; MICROSCOPY, ELECTRON; PANCREATIC NEOPLASMS; PROTOPLASM