Thickness, cross-sectional areas and depth of invasion in the prognosis of cutaneous melanoma.
Reads0
Chats0
TLDR
The depth of invasion was studied using the criteria for staging of Clark et al.2 to see if maximal cross-sectional area, thickness, stage of invasion, or a combination of these can be of value in assessing the prognosis of cutaneous melanoma.Abstract:
CuTANEous melanoma is a most unpredictable lesion. The marked variation in prognosis is probably a function of many variables, one of which is the size of the tumor. Though there is a roughly inverse relationship between the diameter of the lesion and survival,5 very small lesions have recurred or metastasized. One possible reason for the lack of reliability of tumor size in estimating prognosis may be that studies to date have considered size in only two diamensions and have neglected tumor volume. Two melanomas can have the same diameter but differ greatly in thickness because of variation in either depth of invasion or degree of protrusion from the surface of the skin or both. A recent study 2 has shown that prognosis correlates well with staging of the depth of invasion, but there have been no studies relating survival to tumor volume. To measure tumor volume it is necessary to know the surface area of the tumor, but in this retrospective study we only know the maximal diameters of the lesions. By measuring the maximal thickness of the lesions we can calculate the maximal crosssectional area, which should be roughly proportional to the volume of the tumor. The depth of invasion was also studied using the criteria for staging of Clark et al.2 to see if maximal cross-sectional area, thickness, stage of invasion, or a combination of these can be of value in assessing the prognosis of cutaneous melanoma. A total of 98 lesions were so studied.read more
Citations
More filters
Journal ArticleDOI
Mathematical modeling of cancer cell invasion of tissue: biological insight from mathematical analysis and computational simulation
TL;DR: An analysis of a mathematical model of cancer cell invasion of tissue, or ECM, which focuses on the role of the urokinase plasminogen activation system and shows that dynamic heterogeneous spatio-temporal solutions are caused by a taxis-driven instability of a spatially homogeneous steady-state.
Journal ArticleDOI
Surgical margins for excision of primary cutaneous melanoma
TL;DR: Predetermined surgical margins for excision of melanoma or melanoma in situ by standard surgical techniques should include 1 cm of normal-appearing skin for melanomas on the trunk and proximal extremities that are smaller than 2 cm in diameter, or a 1.5 cm margin for tumors larger than 2cm in diameter.
Journal ArticleDOI
Clinical whole-body skin examination reduces the incidence of thick melanomas
Joanne F. Aitken,Mark Elwood,Peter D. Baade,Peter D. Baade,Philippa Youl,Dallas R. English,Dallas R. English +6 more
TL;DR: There is the strongest evidence to date that whole‐body clinical skin examination reduces the incidence of thick melanoma, and the results suggest that screening would reduce melanoma mortality.
Journal ArticleDOI
Meta-analysis of digital dermoscopy follow-up of melanocytic skin lesions: a study on behalf of the International Dermoscopy Society
Gabriel Salerni,Teresita Evelina Terán,Susana Puig,Joseph Malvehy,Iris Zalaudek,Giuseppe Argenziano,Harald Kittler +6 more
TL;DR: Using digital dermoscopy follow‐up, the proportion of in situ melanoma and thin melanomas are higher than expected in general population and chances to detect a melanoma during surveillance increase as the length of follow-up extends.
Journal ArticleDOI
Human Melanocytes Cultured from Nevi and Melanomas
TL;DR: The acquisition of independence from mitogens in culture is a late event in the transformation of melanocytes to melanomas, and melanocytes from primary melanomas are the most difficult to grow in culture.
References
More filters
Journal ArticleDOI
Some Methods for Strengthening the Common χ 2 Tests
TL;DR: In this article, the authors discuss two kinds of failure to make the best use of x2 tests which I have observed from time to time in reading reports of biological research, and propose a number of methods for strengthening or supplementing the most common uses of the ordinary x2 test.
Journal Article
The Histogenesis and Biologic Behavior of Primary Human Malignant Melanomas of the Skin
TL;DR: Evidence is presented suggesting that superficial spreading melanoma and lentigo maligna melanoma (Hutchinson9s melanotic freckle) show a long period of superficial growth, followed by the relatively rapid appearance of nodules or deeper invasion within the primary lesion.
Journal ArticleDOI
The Detection of Partial Association, I: The 2 × 2 Case
TL;DR: In this article, a criterion for testing null hypotheses of conditional independence of two dichotomous random variables is derived for testing whether the association of the two random variables in the conditional distribution is, in a certain sense, constant.
Journal ArticleDOI
Clinicopathological correlations in a series of 117 malignant melanomas of the skin of adults.
Related Papers (5)
The Histogenesis and Biologic Behavior of Primary Human Malignant Melanomas of the Skin
Final Version of the American Joint Committee on Cancer Staging System for Cutaneous Melanoma
Charles M. Balch,Antonio C. Buzaid,Seng Jaw Soong,Michael B. Atkins,Natale Cascinelli,Daniel G. Coit,Irvin D. Fleming,Jeffrey E. Gershenwald,Alan Houghton,John M. Kirkwood,Kelly M. McMasters,Martin F. Mihm,Donald L. Morton,Douglas S. Reintgen,M. I. Ross,Arthur J. Sober,John A. Thompson,John F. Thompson +17 more
Final Version of 2009 AJCC Melanoma Staging and Classification
Charles M. Balch,Jeffrey E. Gershenwald,Seng-Jaw Soong,John F. Thompson,Michael B. Atkins,David R. Byrd,Antonio C. Buzaid,Alistair J. Cochran,Daniel G. Coit,Shouluan Ding,Alexander M.M. Eggermont,Keith T. Flaherty,Phyllis A. Gimotty,John M. Kirkwood,Kelly M. McMasters,Martin C. Mihm,Donald L. Morton,Merrick I. Ross,Arthur J. Sober,Vernon K. Sondak +19 more
Prognostic Factors Analysis of 17,600 Melanoma Patients: Validation of the American Joint Committee on Cancer Melanoma Staging System
Charles M. Balch,Seng Jaw Soong,Jeffrey E. Gershenwald,John F. Thompson,Douglas S. Reintgen,Natale Cascinelli,Marshall M. Urist,Kelly M. McMasters,M. I. Ross,John M. Kirkwood,Michael B. Atkins,John A. Thompson,Daniel G. Coit,David R. Byrd,Renee A. Desmond,Yuting Zhang,Ping-Yu Liu,Gary H. Lyman,Aberto Morabito +18 more