منابع مشابه
Tumour radiobiology beyond fractionation
Historically it has been shown repeatedly that single high doses of radiation do not allow a therapeutic differential between tumor and critical normal tissues but dose fractionation does. The purpose of conventional dose fractionation is to increase dose to the tumor while preserving normal tissue function. Tumors are generally irradiated with 2Gy dose per fraction delivered daily to a more or...
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the presentation treatment and postoperative progress of two patients with pearly intraspinal eptdermcids is described. in one of the patients the tumour recurred after the first removal. necessitating a second operation. despite serious distur bances of gait both patients improved following surgery. the literature in respect of these tumours. is reviewed
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Sinonasal teratocarcinosarcoma (STCS) is a rare, morphologically heterogeneous and highly aggressive tumour of ambiguous origin. It is characterized by the presence of benign and malignant epithelial, mesenchymal and neuroectodermal components. Because of their rarity and heterogeneity, these lesions are often misdiagnosed, leading to management difficulties. Adequate sampling with a high index...
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With the exception of metastatic involvement of adenomas of endocrine glands, metastasis of one primary tumour to another independent neoplasm is a rare occurrence. This paper records two such examples.
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UNLABELLED Tumours can metastasize to sites of other tumours but this is a rare event. The phenomenon has been well described in primary tumours of the lung and breast. This has been described in melanomas but as very rare occurrence. We describe a case of a malignant melanoma that metastasized to a pre-existing meningioma. We have tried to highlight this phenomenon in patient with melanoma and...
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ژورنال
عنوان ژورنال: Proceedings of the Royal Society of Medicine
سال: 1927
ISSN: 0035-9157
DOI: 10.1177/003591572702100228