Infiltrating basal cell carcinoma: a stellate peri-tumor dermatoscopy pattern as a clue to diagnosis

Background: Infiltrating basal cell carcinoma (BCC) has associated features that may be readily identified using dermatoscopy.  Objective: Investigate a stellate dermatoscopy pattern extending from the peripheral margin of infiltrating BCC. Methods: A total of 741 consecutive cases of BCC wer...

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Autores principales: John H. Pyne, Paul Fishburn, Anthony Dicker, Michael David
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Publicado: Mattioli1885 2015
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spelling oai:doaj.org-article:5e168e8a92fd42fb946b1c448eb1f4922021-11-17T08:31:47ZInfiltrating basal cell carcinoma: a stellate peri-tumor dermatoscopy pattern as a clue to diagnosis10.5826/dpc.0502a022160-9381https://doaj.org/article/5e168e8a92fd42fb946b1c448eb1f4922015-04-01T00:00:00Zhttp://dpcj.org/index.php/dpc/article/view/737https://doaj.org/toc/2160-9381 Background: Infiltrating basal cell carcinoma (BCC) has associated features that may be readily identified using dermatoscopy.  Objective: Investigate a stellate dermatoscopy pattern extending from the peripheral margin of infiltrating BCC. Methods: A total of 741 consecutive cases of BCC were assessed retrospectively using non-polarized dermatoscopy. Following histopathologic examination, cases were categorized into six different BCC subtypes. Infiltrating cases numbered 107. This stellate feature was defined as a geometric star shaped pattern extending outwards from the circumferential peripheral edge of the tumor, and identified by white lines, vessels or uneven skin surface morphology. The percentages of infiltrating subtype within the tumor mass and tumor depth were compared, with and without the stellate pattern. Results: Infiltrating BCC displayed the stellate pattern more than other BCC subtypes. Concordance between the two observers was almost perfect for white lines: Kappa coefficient of 0.87 (95% CI: 0.0.79-0.95) P<0.01 and substantial for vessels: Kappa coefficient of 0.71 95% CI: 0.59-0.84) P<0.01. Folds were only recorded in infiltrating cases (n=3). Compared to other BCC subtypes the stellate pattern had a sensitivity of 31.7% and specificity of 94.1%. A higher mean fraction of the tumor mass containing infiltrating subtype was found when comparing stellate pattern observed to stellate pattern not observed (P<0.01). No statistically significant association was found between the tumor depth with and without the stellate pattern. Conclusion: This study found a higher incidence of the stellate pattern within infiltrating BCC compared to the other BCC subtypes. As the percentage of the infiltrating subtype within the tumors increased the incidence of the stellate pattern also increased. John H. PynePaul FishburnAnthony DickerMichael DavidMattioli1885articlebasal cell carcinomadermatoscopydermoscopy: infiltratingskin cancervesselsDermatologyRL1-803ENDermatology Practical & Conceptual (2015)
institution DOAJ
collection DOAJ
language EN
topic basal cell carcinoma
dermatoscopy
dermoscopy: infiltrating
skin cancer
vessels
Dermatology
RL1-803
spellingShingle basal cell carcinoma
dermatoscopy
dermoscopy: infiltrating
skin cancer
vessels
Dermatology
RL1-803
John H. Pyne
Paul Fishburn
Anthony Dicker
Michael David
Infiltrating basal cell carcinoma: a stellate peri-tumor dermatoscopy pattern as a clue to diagnosis
description Background: Infiltrating basal cell carcinoma (BCC) has associated features that may be readily identified using dermatoscopy.  Objective: Investigate a stellate dermatoscopy pattern extending from the peripheral margin of infiltrating BCC. Methods: A total of 741 consecutive cases of BCC were assessed retrospectively using non-polarized dermatoscopy. Following histopathologic examination, cases were categorized into six different BCC subtypes. Infiltrating cases numbered 107. This stellate feature was defined as a geometric star shaped pattern extending outwards from the circumferential peripheral edge of the tumor, and identified by white lines, vessels or uneven skin surface morphology. The percentages of infiltrating subtype within the tumor mass and tumor depth were compared, with and without the stellate pattern. Results: Infiltrating BCC displayed the stellate pattern more than other BCC subtypes. Concordance between the two observers was almost perfect for white lines: Kappa coefficient of 0.87 (95% CI: 0.0.79-0.95) P<0.01 and substantial for vessels: Kappa coefficient of 0.71 95% CI: 0.59-0.84) P<0.01. Folds were only recorded in infiltrating cases (n=3). Compared to other BCC subtypes the stellate pattern had a sensitivity of 31.7% and specificity of 94.1%. A higher mean fraction of the tumor mass containing infiltrating subtype was found when comparing stellate pattern observed to stellate pattern not observed (P<0.01). No statistically significant association was found between the tumor depth with and without the stellate pattern. Conclusion: This study found a higher incidence of the stellate pattern within infiltrating BCC compared to the other BCC subtypes. As the percentage of the infiltrating subtype within the tumors increased the incidence of the stellate pattern also increased.
format article
author John H. Pyne
Paul Fishburn
Anthony Dicker
Michael David
author_facet John H. Pyne
Paul Fishburn
Anthony Dicker
Michael David
author_sort John H. Pyne
title Infiltrating basal cell carcinoma: a stellate peri-tumor dermatoscopy pattern as a clue to diagnosis
title_short Infiltrating basal cell carcinoma: a stellate peri-tumor dermatoscopy pattern as a clue to diagnosis
title_full Infiltrating basal cell carcinoma: a stellate peri-tumor dermatoscopy pattern as a clue to diagnosis
title_fullStr Infiltrating basal cell carcinoma: a stellate peri-tumor dermatoscopy pattern as a clue to diagnosis
title_full_unstemmed Infiltrating basal cell carcinoma: a stellate peri-tumor dermatoscopy pattern as a clue to diagnosis
title_sort infiltrating basal cell carcinoma: a stellate peri-tumor dermatoscopy pattern as a clue to diagnosis
publisher Mattioli1885
publishDate 2015
url https://doaj.org/article/5e168e8a92fd42fb946b1c448eb1f492
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AT paulfishburn infiltratingbasalcellcarcinomaastellateperitumordermatoscopypatternasacluetodiagnosis
AT anthonydicker infiltratingbasalcellcarcinomaastellateperitumordermatoscopypatternasacluetodiagnosis
AT michaeldavid infiltratingbasalcellcarcinomaastellateperitumordermatoscopypatternasacluetodiagnosis
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