Should tumor depth be included in prognostication of soft tissue sarcoma?

<p>Abstract</p> <p>Background</p> <p>Most staging systems for soft tissue sarcoma are based on histologic malignancy-grade, tumor size and tumor depth. These factors are generally dichotomized, size at 5 cm. We believe it is unlikely that tumor depth <it>per se &l...

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Main Authors: Gustafson Pelle, Rydholm Anders
Format: Article
Language:English
Published: BMC 2003-05-01
Series:BMC Cancer
Subjects:
Online Access:http://www.biomedcentral.com/1471-2407/3/17
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author Gustafson Pelle
Rydholm Anders
author_facet Gustafson Pelle
Rydholm Anders
author_sort Gustafson Pelle
collection DOAJ
description <p>Abstract</p> <p>Background</p> <p>Most staging systems for soft tissue sarcoma are based on histologic malignancy-grade, tumor size and tumor depth. These factors are generally dichotomized, size at 5 cm. We believe it is unlikely that tumor depth <it>per se </it>should influence a tumor's metastatic capability. Therefore we hypothesized that the unfavourable prognostic importance of depth could be explained by the close association between size and depth, deep-seated tumors on average being larger than the superficial ones. When tumor size is dichotomized, this effect should be most pronounced in the large size (>5 cm) group in which the size span is larger.</p> <p>Methods</p> <p>We analyzed the associations between tumor size and depth and the prognostic importance of grade, size and depth in a population-based series of 490 adult patients with soft tissue sarcoma of the extremity or trunk wall with complete, 4.5 years minimum, follow-up.</p> <p>Results</p> <p>Multivariate analysis showed no major prognostic effect of tumor depth when grade and size were taken into account. The mean size of small tumors was the same whether superficial or deep but the mean size of large and deep-seated tumors were one third larger than that of large but superficial tumors. Tumor depth influenced the prognosis in the subset of high-grade and large tumors. In this subset deep-seated tumors had poorer survival rate than superficial tumors, which could be explained by the larger mean size of the deep-seated tumors.</p> <p>Conclusion</p> <p>Most of the prognostic value of tumor depth in soft tissue sarcomas of the extremity or trunk wall can be explained by the association between tumor size and depth.</p>
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spelling doaj.art-a665df15d36e4a26a0d1623c7541fb6f2022-12-21T22:12:24ZengBMCBMC Cancer1471-24072003-05-01311710.1186/1471-2407-3-17Should tumor depth be included in prognostication of soft tissue sarcoma?Gustafson PelleRydholm Anders<p>Abstract</p> <p>Background</p> <p>Most staging systems for soft tissue sarcoma are based on histologic malignancy-grade, tumor size and tumor depth. These factors are generally dichotomized, size at 5 cm. We believe it is unlikely that tumor depth <it>per se </it>should influence a tumor's metastatic capability. Therefore we hypothesized that the unfavourable prognostic importance of depth could be explained by the close association between size and depth, deep-seated tumors on average being larger than the superficial ones. When tumor size is dichotomized, this effect should be most pronounced in the large size (>5 cm) group in which the size span is larger.</p> <p>Methods</p> <p>We analyzed the associations between tumor size and depth and the prognostic importance of grade, size and depth in a population-based series of 490 adult patients with soft tissue sarcoma of the extremity or trunk wall with complete, 4.5 years minimum, follow-up.</p> <p>Results</p> <p>Multivariate analysis showed no major prognostic effect of tumor depth when grade and size were taken into account. The mean size of small tumors was the same whether superficial or deep but the mean size of large and deep-seated tumors were one third larger than that of large but superficial tumors. Tumor depth influenced the prognosis in the subset of high-grade and large tumors. In this subset deep-seated tumors had poorer survival rate than superficial tumors, which could be explained by the larger mean size of the deep-seated tumors.</p> <p>Conclusion</p> <p>Most of the prognostic value of tumor depth in soft tissue sarcomas of the extremity or trunk wall can be explained by the association between tumor size and depth.</p>http://www.biomedcentral.com/1471-2407/3/17prognosissoft tissue sarcomastagingtumor depth
spellingShingle Gustafson Pelle
Rydholm Anders
Should tumor depth be included in prognostication of soft tissue sarcoma?
BMC Cancer
prognosis
soft tissue sarcoma
staging
tumor depth
title Should tumor depth be included in prognostication of soft tissue sarcoma?
title_full Should tumor depth be included in prognostication of soft tissue sarcoma?
title_fullStr Should tumor depth be included in prognostication of soft tissue sarcoma?
title_full_unstemmed Should tumor depth be included in prognostication of soft tissue sarcoma?
title_short Should tumor depth be included in prognostication of soft tissue sarcoma?
title_sort should tumor depth be included in prognostication of soft tissue sarcoma
topic prognosis
soft tissue sarcoma
staging
tumor depth
url http://www.biomedcentral.com/1471-2407/3/17
work_keys_str_mv AT gustafsonpelle shouldtumordepthbeincludedinprognosticationofsofttissuesarcoma
AT rydholmanders shouldtumordepthbeincludedinprognosticationofsofttissuesarcoma