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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1986-5-9
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pubmed:abstractText |
The vascularity of malignant melanoma has been studied in 23 patients by Doppler ultrasonic frequency shift recordings. A 10 or 8 MHz directional Doppler probe was used and the signals were analysed on an Angioscan II spectrum analyser. No blood flow was detected in 7 primary melanomas each of thickness less than 0.75 mm and one recurrent subcutaneous nodule. Abnormal blood flow signals were detected in 8 primary melanomas--each of thickness greater than 1.2 mm--and in 7 skin nodules of secondary melanoma. Three tumours did not conform to the general pattern--one primary tumour 0.7 mm thick had abnormal blood flow signals whereas one primary lesion of 2 mm thickness and one secondary deposit were flow negative. Thus neovascularization corresponds in general to the cut-off point for good prognostic tumours, suggesting that it is a development of biological significance. This vascular pattern can be detected non-invasively by means of a Doppler probe and may have a prognostic importance, particularly with melanomas of the intermediate thickness range of 0.75-3.0 mm, where precise outcome cannot at present be predicted. The significance of an abnormal blood flow in one thin tumour remains to be determined from long-term follow-up.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:month |
Mar
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pubmed:issn |
0748-7983
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
12
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
13-8
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pubmed:dateRevised |
2007-7-2
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pubmed:meshHeading |
pubmed-meshheading:2420648-Humans,
pubmed-meshheading:2420648-Melanoma,
pubmed-meshheading:2420648-Neovascularization, Pathologic,
pubmed-meshheading:2420648-Prognosis,
pubmed-meshheading:2420648-Regional Blood Flow,
pubmed-meshheading:2420648-Rheology,
pubmed-meshheading:2420648-Skin,
pubmed-meshheading:2420648-Skin Neoplasms,
pubmed-meshheading:2420648-Ultrasonography
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pubmed:year |
1986
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pubmed:articleTitle |
The significance of blood flow in cutaneous malignant melanoma demonstrated by Doppler flowmetry.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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