High-frequency ultrasound associated with dermoscopy in pre-operative evaluation of basal cell carcinoma

Barcaui, Elisa de Oliveira; Carvalho, Antônio Carlos Pires; Valiante, Paulo Marcos; Barcauí, Carlos Baptista

doi:10.1590/abd1806-4841.20143176

Cited by 30 publications

(37 citation statements)

References 9 publications

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“…A similar US picture of BCCs was described by Desai et al and Schmid-Wendtner et al who used the 20 MHz frequency probe and defined BCCs as alternating hypo-and hyperechoic areas, with no clear margins between the tumor and the perifocal infiltrate [11,12]. Other authors reported using the 22 MHz transducer and described BCC lesions as heterogeneous, hypoechoic formations in the dermis with a regular contour and large, hyperechoic internal signals [13]. In our study, we used the 75 MHz frequency probes for superficial and sclerodermiform BCCs and 30 MHz frequency probe for the nodular BCCs, that contributed to the more accurate visualization of the margins, sizes and structure of tumors.…”

Section: Discussionsupporting

confidence: 56%

Ultrasonographic features of superficial and nodular basal cell carcinoma

Хлебникова¹,

Молочков²,

Selezneva³

et al. 2018

Med Ultrason

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Aim: To describe the ultrasonographic findings of surface and nodular basal cell skin cancer (BCC) using high frequency ultrasonography.Materials and methods: We examined 60 primary BCCs in different locations with the High Frequency Ultrasound (HFU) system DUB Skin Scanner using 75 MHz and 30 MHz probes. Epidermis, dermis, and depth of tumors spread in the region of interest (ROI) were measured. Visually unchanged, contralateral skin areas were examined as the control. Results: The surface BCC most often had elongated contours, clear margins and hypoechoic structure, while the nodular BCC had round or oval outlines and diffusely hypo-heterogeneous structure with clear margins. Sclerodermiform BCCs were visualized as hypoechoic areas of irregular shape penetrating in the dermis, with wavy fuzzy margins. The average thickness of the surface BCC in the US examination was 556.28±136.95 μ, the nodular BCC thickness was 2439.71±865.92 μ and the sclerodermiform thickness was 1500±325.33 μ. A statistically significant increase in the average thickness of tumors of the nodularand scleroderma forms was observed in comparison with the surface clinical variant (p<0.05). Hyperechoic inclusions were observed in 11% of the surface BCC’s and in the 100% of the nodular BCC’s. Their average number was 2±0.57 and 4±4.8, with the average area of 0.03±0.02 mm2 and 0.04±0.03 mm2 (p>0.05), respectively. In the surface BCC, they were mainly located along the periphery of the hypoechoic zones. In nodular BCC, the inclusions had a peripheral and combined (center and peripheral) distribution.Conclusions: Ultrasound allows differentiating BCC as diffuse-heterogeneous, hypoechoic, formations in the dermis with distinct contours. Depending on the clinical picture, they differ in form, depth of bedding, as well as in the quantitative ratio and distribution of the point hyperechoic structures in them.

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Section: Discussionsupporting

confidence: 56%

Ultrasonographic features of superficial and nodular basal cell carcinoma

Хлебникова¹,

Молочков²,

Selezneva³

et al. 2018

Med Ultrason

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“…In HFUS, skin cancer, malignant or benign, usually presents as hypoechoic areas in contrast to the adjacent healthy tissue. 18 , 27 In addition to echogenicity, it's possible to assess the lesion shape, the longitudinal, transverse and axial measures, the edges, the contour and the involvement of deep layers, such as muscle, cartilage and bone. 28 The study of the vascularization can be accomplished with the combination of color Doppler or power Doppler, which allows observing the distribution, size and nature (arterial or venous) of tumor vessels.…”

Section: Applicationsmentioning

confidence: 99%

High frequency ultrasound with color Doppler in dermatology

Barcaui

Carvalho

Lopes

et al. 2016

An. Bras. Dermatol.

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Ultrasonography is a method of imaging that classically is used in dermatology to study changes in the hypoderma, as nodules and infectious and inflammatory processes. The introduction of high frequency and resolution equipments enabled the observation of superficial structures, allowing differentiation between skin layers and providing details for the analysis of the skin and its appendages. This paper aims to review the basic principles of high frequency ultrasound and its applications in different areas of dermatology.

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“…The diagnosis of the skin cancer relies on clinical inspection, palpation, dermoscopy followed by incisional or excisional biopsy. With dermoscopy, it is possible to assess the extension of the lesion in the longitudinal and horizontal axes but not to determine its depth and the potential invasion of adjacent structures [5][6][7]. The American Joint Committee on Cancer (AJCC) staging system uses depth of invasion (DOI) in the staging of non-melanoma skin cancer which changes the staging in the case of an invasion greater than 6 millimeters.…”

Section: Introductionmentioning

confidence: 99%

The role of ultrasonography in head and neck Non-Melanoma Skin Cancer approach: an update with a review of the literature

et al. 2021

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Non-Melanoma Skin Cancer is one of the most common cancer types and the face is the most affected region. The diagnosis of the skin cancer relies on clinical inspection, palpation, dermoscopy followed by incisional or excisional biopsy. When skin cancers are removed from the face, many factors are involved, including aesthetics. In addition, surgical planning with preoperative acknowledgement of the tumour margins is often the key to avoid incomplete excision, the need for reintervention, or in the prevention of functional and aesthetical defects in the treatment of skin tumours. In recent years, the development of new technologies in sonography, including high frequencies transducers can provide a full range of data. It can offer valuable information regarding the size of the tumour including the depth of invasion, the extent of the tumour, histology and subtypes of the lesions which are helpful for the treatment plan. It also may be efficient in detection of positive margins after surgery and it could play a role in the treatment of skin cancer, prevention of local recurrences and overall control of the disease. K

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High-frequency ultrasound associated with dermoscopy in pre-operative evaluation of basal cell carcinoma

Cited by 30 publications

References 9 publications

Ultrasonographic features of superficial and nodular basal cell carcinoma

Ultrasonographic features of superficial and nodular basal cell carcinoma

High frequency ultrasound with color Doppler in dermatology

The role of ultrasonography in head and neck Non-Melanoma Skin Cancer approach: an update with a review of the literature

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