SEARCH · PubMed Health
Results for “Neoplasms, Muscle Tissue”
Explore indexed PubMed citations for clinical trials, systematic reviews and public health research. Read source abstracts and follow each citation to its original PubMed record.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
Leiomyoma of the vagina.
Eight cases of leiomyoma of the vagina are described. Most were diagnosed clinically as lesions other than leiomyomas, and the correct diagnosis was made only after histological examination. The tumours were most commonly situated on the anterior wall of the vagina, varied from 1 to 3 cm in diameter, and were all treated by simple excision. No recurrence was recorded in a follow-up period that varied from 8 months to 20 years.
[Myomatous tumor of the stomach. 3 clinical cases].
Three cases of smooth muscle tumors of the stomach are reported: a leiomyoma, a leiomyosarcoma and a leiomyoblastoma observed over a period of five years. Clinical presentation, diagnostic procedure and surgical treatment are discussed and the literature is reviewed.
[Myofibroblastic proliferative lesions in the paratesticular area].
Myofibroblastic pseudotumorous proliferations have been recognized at a variety of sites. Six cases of paratesticular myofibroblastic lesions with emphasis on the spectrum of morphologic features were described. The microscopic features changed from abundant cellular spindle cell proliferation resembling nodular (pseudosarcomatous) fasciitis to hypocellular and hyalin fibrovascular lesion with extensive dystrophic calcification. The age of the patients ranged from 14 to 77 years. In four cases sarcoma was suspected histologically. Differential diagnosis and histogenesis of the lesion were discussed.
[CHANGES IN THE ACTIVITY OF VARIOUS OXIDOREDUCTASES DURING THE PROCESS OF CARCINOGENESIS IN MUSCLES WITH DIFFERENT METABOLIC PATTERNS].
Explore the source record for details and available documents.
THE EXPERIMENTAL PRODUCTION OF VASCULAR TUMOURS IN THE RAT.
Explore the source record for details and available documents.
[Possibilities of echography in the study of tumefactions of superficial soft tissues].
Explore the source record for details and available documents.
[HISTOGENESIS OF EXPERIMENTAL SOMATIC MUSCLE TUMORS].
Explore the source record for details and available documents.
Pathology of tumours in laboratory animals. Tumours of the rat. Tumours of soft tissues.
Explore the source record for details and available documents.
Cytokeratin expression in smooth muscle and smooth muscle tumours.
The expression of cytokeratin intermediate filaments by a tumour has been accepted as evidence of an epithelial origin. Although there have been anecdotal reports of cytokeratin expression within tissues and neoplasms of non-epithelial origin, particularly muscle, there have been no comprehensive studies of its frequency and distribution. In order to investigate this we have studied 51 cases of normal smooth muscle and benign and malignant smooth muscle tumours using a panel of monoclonal antibodies against a range of intermediate filaments (cytokeratins, desmin and vimentin). Cytokeratin expression was noted overall in 50% of normal, benign and malignant smooth muscle tissues. Such expression tended to have a focal or patchy distribution. No case expressed cytokeratins in the absence of both desmin and vimentin. The implication of these findings for diagnostic immunocytochemistry is that intermediate filaments alone are not completely reliable markers of tumour histogenesis and should be used as part of a larger panel of monoclonal antibodies.
The histogenesis of malignant tumours induced by cobalt in the rat.
Explore the source record for details and available documents.
Localization of myoglobin in normal and neoplastic human skeletal muscle cells using an immunoperoxidase method.
Using an immunoperoxidase method, myoglobin is localized in the cytoplasm of normal and neoplastic human skeletal muscle. The staining intensity is variable in individual cells. This can be explained by the variable concentration of myoglobin in the different fiber types of normal muscle or the different degree of differentiation in neoplastic muscle cells, respectively. A potential application of this method in tumor pathology is discussed in connection with myoglobin as a tissue-specific marker for skeletal muscle neoplasms.
[Congenital sarcoma of the sternocleidomastoideus muscle].
Explore the source record for details and available documents.
Tumor necrosis and cell detachment.
Cell detachment from and around Walker 256 tumors grown in rats is quantitated by a standardized in vitro shaking procedure. The volume of cells detached from cancers of similar size is virtually the same in tumors growing in the liver, the spleen, in intramuscular and in subcutaneous sites. In cystic tumors, greater volumes are detached from the innermost regions of the walls adjacent to necrotic material than from the outermost parts. More liver perenchymal cells are shaken free of liver adjacent to a tumor interface than from regions 0.5 and 1.0 cm distant from it. Detachment of tumor and liver cells is also enhanced by prior incubation of tissue samples with necrotic extracts. It is suggested that the necrotic regions of tumors, and products derived from them, facilitate the detachment of tumor cells and cells composing the normal tissues surrounding them, thereby potentially promoting metastasis and invasion.
[Myoblastoma of the vocal cords. (Review of literature on muscle-tissue tumors of the larynx)].
Explore the source record for details and available documents.
EFFECTS OF METHANDROSTENOLONE ON MUSCLE CARCINOGENESIS INDUCED IN RATS BY NICKEL SULPHIDE.
Explore the source record for details and available documents.
Transfer of tumor-specific delayed hypersensitivity in vitro to normal guinea pig peritoneal exudate cells using RNA extracts from sensitized lymphoid tissues.
Explore the source record for details and available documents.
A review and update of morphologically bland vulvovaginal mesenchymal lesions.
Vulvovaginal mesenchymal lesions composed of morphologically bland spindle-shaped cells often pose a particular diagnostic problem for the surgical pathologist not only because of the rarity of these lesions but also because of the wide array of entities with overlapping morphologic features. Included in this group of lesions are soft tissue neoplasms that may arise at any site and those that are characteristic of, or relatively specific to, the vulvovaginal region. Lesions that are relatively specific to the vulvovaginal region include well-known neoplasms such as aggressive angiomyxoma and angiomyofibroblastoma as well as more recently described lesions such as cellular angiofibroma and superficial cervicovaginal myofibroblastoma. Fibroepithelial stromal polyp, superficial angiomyxoma, and smooth muscle neoplasms also can occur in, but are not specific to, this site. In this review, the clinicopathologic features of these lesions are described with an emphasis on recent developments. The value of ancillary studies, especially immunohistochemistry, is discussed, although it is stressed that in general these are of limited value and routine morphology remains the mainstay in diagnosis. Morphologically bland spindle cell lesions that are not characteristic of the vulvovaginal region, but which also may occur here, are briefly discussed as are a variety of extremely rare mesenchymal lesions that have recently been described at this site.