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Indian J Dermatol Venereol Leprol. 2019 Aug 12. doi: 10.4103/ijdvl.IJDVL_452_18. [Epub ahead of print]

Basal cell carcinoma, blue-white variant: Dermatoscopic findings in 32 cases.

Author information

1
Department of Dermatology, Dermatology Institute of Jalisco, "Dr. José Barba Rubio", Jalisco Secretary of Health, Zapopan, Mexico.
2
Department of Dermatology, Provincial Centenary Hospital, Rosario, Argentina.
3
Department of Introduction to Clinical Medicine, Faculty of Medicine, Autonomous University of Nuevo Leon, Nuevo Leon, Mexico.
4
Medical Research Division, UMAE Pediatric Hospital, CMNO, IMSS, Guadalajara, Mexico.

Abstract

Background:

The diagnosis of basal cell carcinoma is histopathological, but there are dermatoscopic criteria that confer high sensitivity and specificity to help the clinician improve its identification. However, the basal cell carcinoma blue-white variant does not totally meet these dermatoscopic criteria, and thus can be confused with other pigmented tumors. In the literature reviewed, we found only five cases of this variant.

Aims:

The present objective is to describe the dermatoscopic characteristics of the blue-white variant of basal cell carcinoma observed in a tertiary dermatology institute.

Methods:

The dermatoscopy files of patients with a histopathological diagnosis of basal cell carcinoma between January 1, 2006 and December 31, 2015 were reviewed.

Results:

A total of 32 cases with blue-white variant of basal cell carcinoma were observed over a period of 10 years. Of these cases, 97% presented dermatoscopic findings not included in the aforementioned criteria, such as whitish septa, structureless white areas, homogenous blue pigmentation and shiny white structures.

Limitations:

The small sample size and the retrospective nature of the design.

Conclusion:

We consider it important for dermatologists to know this rare variant of basal cell carcinoma and to familiarize themselves with their dermatoscopic findings, in order to prevent erroneous diagnoses or inadequate treatments.

KEYWORDS:

Basal cell carcinoma; dermatoscopy; diagnosis

PMID:
31417071
DOI:
10.4103/ijdvl.IJDVL_452_18
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