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  • 1995-1999  (1)
  • 1990-1994  (2)
  • Cell shaping  (2)
  • Focal nodular hyperplasia  (1)
Materialart
Erscheinungszeitraum
  • 1995-1999  (1)
  • 1990-1994  (2)
Jahr
  • 1
    ISSN: 1432-1084
    Schlagwort(e): Key words: Liver neoplasms ; Surgery ; Echinococcosis ; Focal nodular hyperplasia ; Hemangioma ; US ; CT
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract. The purpose of our work was to provide data on the recurrence of resected benign hepatic lesions and to evaluate the value of follow-up examinations in this group of patients. From August to October 1993, 75 patients who had been admitted for liver surgery for benign tumors between 1975 and 1993 were controlled by physical examinations, serological tests, US, and, in the case of equivocal US findings, by CT. The histological diagnoses of the operative specimen included hydatidosis in 43 patients, focal nodular hyperplasia (FNH) in 12 patients, liver cell adenoma in 8 patients, cavernous hemangioma in 8 patients, and congenital cyst in 4 patients. Hepatic scars were observed in 36 of the 75 patients. Four cases of intrahepatic recurrence and 1 case of intraperitoneal spread were observed in the 42 patients with recent hydatosis. Long-term postoperative controls (specific serological tests, US) are necessary in the management of patients with hydatid disease. Follow-up examinations are not indicated in asymptomatic patients who have been operated on for FNH, hemangioma, or congenital cysts.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Springer
    Protoplasma 153 (1990), S. 141-148 
    ISSN: 1615-6102
    Schlagwort(e): Cell shaping ; Cell wall ; Immunofluorescence ; Mesophyll ; Microtubules ; Triticum
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Summary Differentiated mesophyll cells ofTriticum aestivum (cv. Star) exhibit a lobed outline resembling tube-shaped balloons with almost regularly spaced constrictions. It was shown that these constrictions are probably the result of hoops of wall reinforcements laid down during early stages of cell expansion. It appears that these hoops prevent expansion in the corresponding regions and thus give rise to the peculiar cell shape. The comparatively thin cell walls of the bulges are uniformly reinforced after the lobed shape is established. By using immunofluorescence techniques a change in the pattern of cortical microtubule arrangement was observed which corresponded to the pattern of cell wall deposition. Discrete bands of microtubules were found beneath the sites of hoop reinforcement. These bands disintegrated during late stages of cell expansion with microtubules fanning out into the almost empty regions of the bulges.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Springer
    Protoplasma 173 (1993), S. 8-12 
    ISSN: 1615-6102
    Schlagwort(e): Nigella damascena ; Mesophyll ; Arm-palisade ; Microtubules ; Wall deposition ; Cell shaping
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Summary Cell shaping in the mesophyll ofNigella damascena was investigated with the aim of determining the origin of the arm-like protrusions, which are characteristic of, e.g., arm-palisade cells. It was found that hoops of cell wall were deposited during the early stages of cell expansion. The hoops were interconnected, thus embracing the cells with a wide-meshed net of local wall reinforcement. The pattern of wall deposition in the extra-cellular matrix correlated with a pattern of bands of microtubules in the cortical cytoplasm of the cells. During lateral expansion bulges were forced through the comparatively thin walls of spaces between the meshes, giving rise to the arm-like protrusions. After establishing the cell shape the bands of microtubules disintegrated and cell wall was uniformly deposited. The results are discussed in the context of the mode of cell shaping observed in the mesophyll of other systems and of a previous, classical hypothesis on the origin of arms in mesophyll cells.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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