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Biomedical subjects

K Yamashiro

Publications and source records attributed to K Yamashiro.

At least 163 records · Page 9Linked to original sources
PubMed1977

Electron microscopic study of signet-ring cells in diffuse carcinoma of the human stomach.

The signet-ring cells seen in gastric carcinoma of the diffuse type were studied by light and electron microscopy. A classification of these cells into Types A, B and C was developed, based on intracellular mucous granules, nuclei and organelles, and be reactions to PAS and Alcian-blue staining. The gradual transition of type A cells to Type B and the subsequent change of Type B to Type C suggest successive stages in maturation. These cells, especially those of Type B, resemble the mucous neck cells of the corpus and the glands of the pylorus.

Adenocarcinoma, Mucinous↗
PubMed1977

Electron microscopy of a ciliated cell in the human stomach.

A ciliated cell was observed electron microscopically in a pyloric gland with intestinal metaplasia. This specimen was obtained from the gastric antrum of a 61-year-old man suffering from gastric cancer. The cell had flask-like contour and possessed numerous cilia protruding from the free surface of a deeply indented cytoplasm into the glandular lumen. Most cilia were similar in structure to normal kinocilia and had nine peripheral doublets and two central microtubules (9 + 2 configuration). Some cilia, however, showed varying configurations, such as 9 + 0,9 + 3, or 9 + 4. The occurrence of ciliated cell in human stomach may be related to the disturbance of cellular differentiation of the gastric primordial cells during metaplastic change.

Cilia↗