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The ultrastructure of the ependymoblastoma
Acta Neuropathologica, 1986The ependymoblastoma is a rare, primitive neuroectodermal tumor morphologically distinct from the ependymoma and the malignant or anaplastic ependymoma. This neoplasm is characterized by uniform neuroepithelial cells, ependymoblastic rosettes, perivascular pseudorosettes and numerous mitotic figures. The fine structure of this neoplasm is characterized
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Archives of Ophthalmology, 1969
Xanthelasma from both upper eyelids of a patient were examined by electron microscopy. The cytoplasm of the foam cells was filled with lipid droplets that were not bounded by a membrane. The lipid itself dissolved out during tissue preparation despite osmium or glutaraldehyde-osmium fixation, indicating that the lipid is highly unsaturated.
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Xanthelasma from both upper eyelids of a patient were examined by electron microscopy. The cytoplasm of the foam cells was filled with lipid droplets that were not bounded by a membrane. The lipid itself dissolved out during tissue preparation despite osmium or glutaraldehyde-osmium fixation, indicating that the lipid is highly unsaturated.
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2018
Mammalian hair fibres can be structurally divided into three main components: a cuticle, cortex and sometimes a medulla. The cuticle consists of a thin layer of overlapping cells on the surface of the fibre, constituting around 10% of the total fibre weight. The cortex makes up the remaining 86-90% and is made up of axially aligned spindle-shaped cells
Jeffrey E, Plowman, Duane P, Harland
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Mammalian hair fibres can be structurally divided into three main components: a cuticle, cortex and sometimes a medulla. The cuticle consists of a thin layer of overlapping cells on the surface of the fibre, constituting around 10% of the total fibre weight. The cortex makes up the remaining 86-90% and is made up of axially aligned spindle-shaped cells
Jeffrey E, Plowman, Duane P, Harland
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The Ultrastructure of Statoconia
Acta Oto-Laryngologica, 1955(1955). The Ultrastructure of Statoconia. Acta Oto-Laryngologica: Vol. 45, No. 1, pp. 14-18.
D, CARLSTROM, H, ENGSTROM
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Ciba Foundation symposium, 1995
Almost all structural studies on elastin have been done in higher vertebrates, in which it is organized as an extracellular network of branched fibres which vary from fractions f microns to several microns in diameter. By conventional electron microscopy, elastin appears amorphous.
Ronchetti IP. +3 more
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Almost all structural studies on elastin have been done in higher vertebrates, in which it is organized as an extracellular network of branched fibres which vary from fractions f microns to several microns in diameter. By conventional electron microscopy, elastin appears amorphous.
Ronchetti IP. +3 more
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The ultrastructure of pinealomas
Acta Neuropathologica, 1973Four pinealomas of the two-cell type (atypical teratomas) were investigated by electron microscopy. They all showed the same unique histological ultrastructure. The lymphocyte-like cells did not differ ultrastructurally from lymphocytes. Many plasma cells with well-developed rough surfaced endoplasmic reticulum were also seen.
K, Tabuchi, O, Yamada, A, Nishimoto
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Journal of Ultrastructure Research, 1967
Ultrastructural studies of rhabdomyoma, a rare benign human tumor, confirm its origin from skeletal muscle and differentiate it from other tumors, such as granular cell myoblastoma with which it may be confused by light microscopy. Evidence is presented that characteristic “crystals” observed by light microscopy in rhabdomyoma are in fact modified and ...
J L, Cornog, N K, Gonatas
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Ultrastructural studies of rhabdomyoma, a rare benign human tumor, confirm its origin from skeletal muscle and differentiate it from other tumors, such as granular cell myoblastoma with which it may be confused by light microscopy. Evidence is presented that characteristic “crystals” observed by light microscopy in rhabdomyoma are in fact modified and ...
J L, Cornog, N K, Gonatas
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The ultrastructure of a keloid
Journal of the American Academy of Dermatology, 1980An active, symptomatic keloid from a 57-year-old woman was examined by both light and electron microscopy. The lesion was found to be comprised entirely of myofibroblasts. Fibroblasts in keloids can apparently undergo full transition to this smooth muscle-like cell.
W D, James, C D, Besanceney, R B, Odom
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Ultrastructure of dermatofibroma
Archiv f�r Dermatologische Forschung, 1973Eight dermatofibromas were studied by electron microscopy. The essential cell was the fibroblast, characterized by a well developed rough endoplasmic reticulum (RER), a distinct Golgi zone and large numbers of cytofilaments. The fibroblast of the dermatofibroma was engaged in collagen production and fat storage.
B, Mihatsch-Konz +2 more
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Ultrastructure of a “Pineocytoma”
Journal of Neuropathology & Experimental Neurology, 1975The commonest pineal gland tumor, the germinoma, is more apparently related to germ cells than to pineal cells. Although ultrastructural studies of this tumor have confirmed this similarity, comparable characterization of a pineocytoma has not been reported, due to its rarity.
S L, Nielsen, C B, Wilson
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