Ultrastructure of Canine Hemangiopericytoma
نویسندگان
چکیده
منابع مشابه
Histopathological and Immunohistochemical Characteristics of a Local Aggressive Canine Hemangiopericytoma (CHP) After Surgery
Perivascular wall tumors (PWTs) are mesenchymal neoplasms in the group of soft tissue sarcomas (STSs) and are defined as neoplasms deriving from mural cells of blood vessels, excluding the endothelial lining. In the present paper, we describe the gross morphology, histopathology and immunoreactivity of a hemangiopericytoma (HP) as a PWT in a dog with recurrence after surgical excision. The mass...
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The fine structure of cutaneous papilloma in the dog was studied in two biopsy specimens fixed in formalin, postfixed in osmium tetroxide, and processed through the Epon embedding technic. The most prominent changes were found in the nuclei of epidermal cells, especially in the granular layer of neoplastic fronds. The affected nuclei contained inclusion bodies in various stages of morphologic d...
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Hemangiopericytoma (HPC) is an exceedingly rare tumor of uncertain malignant potential. Approximately 300 cases of HPC have been reported since Stout and Murray described HPCs as "vascular tumors arising from Zimmerman's pericytes" in 1942. After further characterization, the WHO reclassified HPC as a fibroblastic/myofibroblastic tumor. Long term follow up is mandatory because the histologic cr...
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1 Head and Neck Surgery Resident Hospital Ana Costa, Santos/SP, Brazil. 2 Medical Student Universidade Metropolitana de Santos. 3 MSc in Health Sciences – Graduate Program of the Hospital Heliópolis HOSPHEL, São Paulo/SP. Professor of Surgery Fundação Lusíada UNILUS, Santos/SP. AssistantHead and Neck Surgery Services Hospital Ana Costa and at the Irmandade da Santa Casa da Misericórdia de Santo...
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BACKGROUND Recent studies suggest aggressive management combining a grossly total resection (GTR) with adjuvant radiotherapy (RT) as a treatment of choice for intracranial hemangiopericytoma (HPC). However, in these papers, the definitions of complete or GTR are equivocal. In the present study, we reviewed the relevant cases from our experience focused on the clinical efficacy of surgical gradi...
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ژورنال
عنوان ژورنال: Veterinary Pathology
سال: 1986
ISSN: 0300-9858,1544-2217
DOI: 10.1177/030098588602300522