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  • Papanicolaou stained smear of a clival chordoma, microscopy. Chordomas are cancers formed of cells which resemble those of the notochord (spine) of a developing foetus. Although they can present anywhere within the spine and skull, the majority grow in the sacral region of the spine, corresponding to the lower back. This image shows a Papanicolaou (Pap) stained smear obtained from a needle biopsy of a chordoma in the clivus, a part of the cranium at the base of the skull.
  • Papanicolaou stained smear of a C2 vertebral chordomal mass, microscopy. Chordomas are cancers formed of cells which resemble those of the notochord (spine) of a developing foetus. Although they can present anywhere within the spine and skull, the majority grow in the sacral region of the spine, corresponding to the lower back. This image shows a Papanicolaou (pap) stained smear obtained from a needle biopsy of a chordoma of the C2 vertebrae, located at the top of the neck just underneath the base of the skull.
  • Cellular architecture of normal human skin imaged by whole mount tissue microscopy. Human skin has a rich network of white blood cells (specifically dendritic cells, T cells and macrophages) which form sheaths around blood vessels (string-like structures). A network of lymphatic vessels (ribbon-like structures) is also present. In this image, human skin lymphatic vessels (stained for LYVE-1; blue) and white blood cells comprised of dendritic cells (stained for CD11c; green) and T cells (stained for CD3; red) can be seen. Some macrophages also express the protein LYVE-1 similar to lymphatic vessel cells which can be appreciated as blue cells within and in between the sheaths of white blood cells. This normal cellular architecture is grossly disrupted in diseased skin (see related images). X10 magnification. Scale bar (white) represents 200 micrometres.
  • Human chromosomes in metaphase. The chromatin is stained red and the "glue" that holds the two chromatids together is highlighted in yellow. This glue is a proteinaceous complex called cohesin. Once all the chromosomes are attached to the spindle, the cohesin complex breaks down, allowing the two chromatids to separate and move to opposite poles of the cell.
  • Peach slices in fruit juice : no sugar added / Del Monte Foods (UK) Limited.
  • Mouse colon
  • Artery cell
  • Mouse small intestine
  • Human appendix infected with measles virus
  • Human appendix infected with measles virus
  • Ferret lung infected with canine distemper virus
  • Ferret lung infected with canine distemper virus
  • HeLa cells
  • Ferret choroid plexus infected with canine distemper virus
  • Light micrograph of section of skin
  • Human osteosarcoma cells
  • Osteoblasts
  • Injected fibroblast cells in culture
  • Human nasal septum, LM
  • Human osteosarcoma cells
  • Mouse small intestine
  • Human osteosarcoma cells
  • Charcot Leyden crystals from an endobronchial lesion
  • Paneth cells
  • Plant tissue, LM
  • Interphase cells showing pentameric X
  • Ferret choroid plexus infected with Canine Distemper Virus
  • Neurons derived from neural stem cells
  • Metastatic seminoma of supraclavicular lymph node
  • Microscopic examination of ram's semen smear