The basic chromospheres of skin that might not be differentiated visually: Observations on aneurysmal fibrous histiocytomas and malignant melanomas

Ga Na Oh, Jong Yeob Kim, Jae Eun Choi, Soo-Hong Seo, Young Chul Kye, Hyo Hyun Ahn

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2 Citations (Scopus)

Abstract

Aim: Aneurysmal fibrous histiocytoma (AFH) is a variant of fibrous histiocytoma, which has a cleft-like cavernous blood-filled space in the tumor. It appears as a single reddish black tumor with variable levels of pain and size from its bleeding. And, it must be differentiated from other similar looking malignant conditions such as malignant melanoma. The visual mimicry of AFH to melanoma was raised by some careful dermatologists, but never be confirmed objectively by colorimetric analysis. Materials, Subjects, and Methods: In this study, we simply analyzed conventionally photographed digital images of thirty-seven cases of fibrous histiocytomas, including three AFH cases into colorimetrically useful color space, CIELAB, of which coordinates are L*, a*, and b* representing lightness, red to green, and yellow to blue axis, respectively. In addition, we also analyzed the clinical digital images of seven cases of malignant melanomas. Using statistical package, each coordinates of CIELAB were compared using Wilcoxon rank sum test between AFH and melanomas. The CIELAB coordinates of AFH and non-aneurysmal fibrous histiocytomas were compared statistically as well. Results: Comparing with banal fibrous histiocytomas, the colors of AFH showed significantly smaller a* and b* coordinates (P = 0.008, 0.008, respectively), which implies more green and blue hue of AFH lesion. Rather, they were more like melanomas (P = 0.2839, 0.2040, respectively). As for L*, there were no significant differences for all comparisons. Conclusions: As a result, more objective analysis of the digital images using colorimetric color space confirmed the visual mimicry of AFH to melanoma.

Original languageEnglish
JournalSkin Research and Technology
Volume19
Issue number1
DOIs
Publication statusPublished - 2013 Feb 1

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Benign Fibrous Histiocytoma
Melanoma
Skin
Color
Nonparametric Statistics
Neoplasms

Keywords

  • Aneurysmal fibrous histiocytoma
  • Basic chromospheres of skin
  • Malignant melanomas

ASJC Scopus subject areas

  • Dermatology

Cite this

@article{ac36350b1c5a450a893e0181712839c9,
title = "The basic chromospheres of skin that might not be differentiated visually: Observations on aneurysmal fibrous histiocytomas and malignant melanomas",
abstract = "Aim: Aneurysmal fibrous histiocytoma (AFH) is a variant of fibrous histiocytoma, which has a cleft-like cavernous blood-filled space in the tumor. It appears as a single reddish black tumor with variable levels of pain and size from its bleeding. And, it must be differentiated from other similar looking malignant conditions such as malignant melanoma. The visual mimicry of AFH to melanoma was raised by some careful dermatologists, but never be confirmed objectively by colorimetric analysis. Materials, Subjects, and Methods: In this study, we simply analyzed conventionally photographed digital images of thirty-seven cases of fibrous histiocytomas, including three AFH cases into colorimetrically useful color space, CIELAB, of which coordinates are L*, a*, and b* representing lightness, red to green, and yellow to blue axis, respectively. In addition, we also analyzed the clinical digital images of seven cases of malignant melanomas. Using statistical package, each coordinates of CIELAB were compared using Wilcoxon rank sum test between AFH and melanomas. The CIELAB coordinates of AFH and non-aneurysmal fibrous histiocytomas were compared statistically as well. Results: Comparing with banal fibrous histiocytomas, the colors of AFH showed significantly smaller a* and b* coordinates (P = 0.008, 0.008, respectively), which implies more green and blue hue of AFH lesion. Rather, they were more like melanomas (P = 0.2839, 0.2040, respectively). As for L*, there were no significant differences for all comparisons. Conclusions: As a result, more objective analysis of the digital images using colorimetric color space confirmed the visual mimicry of AFH to melanoma.",
keywords = "Aneurysmal fibrous histiocytoma, Basic chromospheres of skin, Malignant melanomas",
author = "Oh, {Ga Na} and Kim, {Jong Yeob} and Choi, {Jae Eun} and Soo-Hong Seo and Kye, {Young Chul} and Ahn, {Hyo Hyun}",
year = "2013",
month = "2",
day = "1",
doi = "10.1111/srt.12004",
language = "English",
volume = "19",
journal = "Skin Research and Technology",
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TY - JOUR

T1 - The basic chromospheres of skin that might not be differentiated visually

T2 - Observations on aneurysmal fibrous histiocytomas and malignant melanomas

AU - Oh, Ga Na

AU - Kim, Jong Yeob

AU - Choi, Jae Eun

AU - Seo, Soo-Hong

AU - Kye, Young Chul

AU - Ahn, Hyo Hyun

PY - 2013/2/1

Y1 - 2013/2/1

N2 - Aim: Aneurysmal fibrous histiocytoma (AFH) is a variant of fibrous histiocytoma, which has a cleft-like cavernous blood-filled space in the tumor. It appears as a single reddish black tumor with variable levels of pain and size from its bleeding. And, it must be differentiated from other similar looking malignant conditions such as malignant melanoma. The visual mimicry of AFH to melanoma was raised by some careful dermatologists, but never be confirmed objectively by colorimetric analysis. Materials, Subjects, and Methods: In this study, we simply analyzed conventionally photographed digital images of thirty-seven cases of fibrous histiocytomas, including three AFH cases into colorimetrically useful color space, CIELAB, of which coordinates are L*, a*, and b* representing lightness, red to green, and yellow to blue axis, respectively. In addition, we also analyzed the clinical digital images of seven cases of malignant melanomas. Using statistical package, each coordinates of CIELAB were compared using Wilcoxon rank sum test between AFH and melanomas. The CIELAB coordinates of AFH and non-aneurysmal fibrous histiocytomas were compared statistically as well. Results: Comparing with banal fibrous histiocytomas, the colors of AFH showed significantly smaller a* and b* coordinates (P = 0.008, 0.008, respectively), which implies more green and blue hue of AFH lesion. Rather, they were more like melanomas (P = 0.2839, 0.2040, respectively). As for L*, there were no significant differences for all comparisons. Conclusions: As a result, more objective analysis of the digital images using colorimetric color space confirmed the visual mimicry of AFH to melanoma.

AB - Aim: Aneurysmal fibrous histiocytoma (AFH) is a variant of fibrous histiocytoma, which has a cleft-like cavernous blood-filled space in the tumor. It appears as a single reddish black tumor with variable levels of pain and size from its bleeding. And, it must be differentiated from other similar looking malignant conditions such as malignant melanoma. The visual mimicry of AFH to melanoma was raised by some careful dermatologists, but never be confirmed objectively by colorimetric analysis. Materials, Subjects, and Methods: In this study, we simply analyzed conventionally photographed digital images of thirty-seven cases of fibrous histiocytomas, including three AFH cases into colorimetrically useful color space, CIELAB, of which coordinates are L*, a*, and b* representing lightness, red to green, and yellow to blue axis, respectively. In addition, we also analyzed the clinical digital images of seven cases of malignant melanomas. Using statistical package, each coordinates of CIELAB were compared using Wilcoxon rank sum test between AFH and melanomas. The CIELAB coordinates of AFH and non-aneurysmal fibrous histiocytomas were compared statistically as well. Results: Comparing with banal fibrous histiocytomas, the colors of AFH showed significantly smaller a* and b* coordinates (P = 0.008, 0.008, respectively), which implies more green and blue hue of AFH lesion. Rather, they were more like melanomas (P = 0.2839, 0.2040, respectively). As for L*, there were no significant differences for all comparisons. Conclusions: As a result, more objective analysis of the digital images using colorimetric color space confirmed the visual mimicry of AFH to melanoma.

KW - Aneurysmal fibrous histiocytoma

KW - Basic chromospheres of skin

KW - Malignant melanomas

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