期刊
JOURNAL OF CUTANEOUS PATHOLOGY
卷 42, 期 4, 页码 253-257出版社
WILEY-BLACKWELL
DOI: 10.1111/cup.12401
关键词
formalin; skin shrinkage; skin specimens; skin tumors; surgical margins
BackgroundThe assessment of discrepancies between surgical and histopathological measurements of specimens is important in order to avoid repeat surgery and unnecessary follow-ups. ObjectivesThe objective of this study was to quantify the degree, time and influential factors of shrinkage of cutaneous surgical specimens. MethodsData of 111 patients were gathered on age, sex, localization, diagnosis and specimen width and length before surgical excision (in vivo), at 5min postsurgery (ex vivo) and after 24h of fixation in 10% buffered formalin (postfixation). ResultsThe length and width were significantly lower in the postfixation vs. in vivo specimens, with a mean shrinkage of 17.0% in the length (p<0.01) and 9.5% in the width (p<0.01). 81.8% and 92.3% of the total shrinkage in length and weight was observed between in vivo and ex vivo measurements. No significant differences were observed as a function of sex, age or diagnosis. A greater shrinkage in length between in vivo and postfixation was found in specimens from the trunk. LimitationsThe most of the skin samples were diseased. ConclusionThe largest proportion of specimen shrinkage occurred within 5min of its excision and the shrinkage was greater in specimens from the trunk.
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