Dermoscopy. Basal cell carcinoma
Pigmented basal cell carcinoma. The dermoscopic features of pigmented basal cell carcinoma include: Absence of pigment network; Linear and arborising (branch-like) telangiectasia; Structureless or leaf-like areas on the periphery of the lesion; Large blue-grey ovoid nests or blotches; Multiple blue-grey globules; Specks of brown and grey pigment
Dermoscopic Features of Basal Cell Carcinoma and its Subtypes: …
2022年9月22日 · Arborizing vessels, ulceration and blue-grey ovoid nests and globules were most common in nodular BCC; short-fine telangiectasia, multiple small erosions and leaf-like, spoke wheel and concentric structures in superficial BCC; porcelain white areas and arborizing vessels in morpheaform BCC; and arborizing vessels and ulceration in infiltrative BCC.
Basal cell carcinoma – diagnosis - PMC - PubMed Central (PMC)
At early stages BCC manifests as a small plaque or a papule covered with telangiectasias. Sometimes there is some crust over a delicate wound that bleeds during shaving and does not heal. The most common type of BCC is the nodular subtype (Figs. 1 – 3) and clinically it presents as a well-defined, pearly, translucent nodule.
Automatic detection of basal cell carcinoma using telangiectasia ...
From the telangiectasia mask containing candidate vessel-like structures, shape, size and normalized count features are computed to facilitate the discrimination of benign skin lesions from BCCs with telangiectasia.
The dermatoscopic universe of basal cell carcinoma - PMC
Pan Y, Chamberlain AJ, Bailey M, et al. Dermatoscopy aids in the diagnosis of the solitary red scaly patch or plaque-features distinguishing superficial basal cell carcinoma, intraepidermal carcinoma, and psoriasis.
Basal Cell Carcinoma - StatPearls - NCBI Bookshelf
2024年3月13日 · On clinical examination, BCC usually appears as flesh- or pink-colored, pearly papules with overlying ulceration or telangiectatic vessels. BCC occurs on the head or neck in the majority of cases, but can involve the trunk and extremities. [1] [2]
Basal Cell Carcinoma Diagnosis with Fusion of Deep Learning and ...
2024年2月8日 · A crucial clue for the clinical diagnosis of basal cell carcinoma is the presence of telangiectasia within the lesion. Classical image processing methods to detect these vessels in this study used statistical measures to quantify telangiectasia features.
Vascular patterns in basal cell carcinoma: Dermoscopic, confocal …
2019年2月25日 · RCM, a novel, non-invasive imaging technique, allows for the quantification of blood vessel size, density, and flow intensity in BCCs. BCCs are distinguished on RCM chiefly by vessels that branch and intertwine between neoplastic aggregates, a pattern strongly reflecting tumor neo-angiogenesis.
A deep learning approach to detect blood vessels in basal cell carcinoma
Telangiectasia are a pivotal identifying feature of basal cell carcinoma. These vessels appear thready, serpiginous, and may also appear arborizing, that is, wide vessels branch into successively thinner vessels.
Basal Cell Carcinoma - Basal Cell Carcinoma - The Merck Manuals
Nodular (approximately 60% of basal cell carcinomas): These types are small, shiny, firm, almost translucent to pink nodules with telangiectases, usually on the face or other sun-exposed areas. Ulceration and crusting are common.
Dermoscopy of basal cell carcinoma - Oxford Academic
2018年4月1日 · Short fine telangiectasias are the second most common vascular pattern found in BCC 8 (Fig. 1 b), and are described as vessels with a small diameter and length of <1mm, with few or no branches. 10. Of the structures associated with melanin, blue–grey ovoid nests are usually the largest (Fig. 2 a), and these are well‐circumscribed and oval in shape.
Role of Dermoscopy in the Assessment of Basal Cell Carcinoma
Basal cell carcinoma is one of the most common cancers in white people, with a continuous increase worldwide. Dermoscopy, a non-invasive technique, allows early diagnosis based on the presence of typical vascular structures, pigmented structures, and ulceration and the absence of specific melanocytic structures.
A deep learning approach to detect blood vessels in basal cell carcinoma
2022年5月25日 · This research enables optimal detection of a critical dermoscopy structure in early basal cell carcinoma: thready blood vessels called telangiectasia. We accomplish this vessel segmentation task by combining image preprocessing with U-Net using our hyperparameters.
Automatic detection of basal cell carcinoma using telangiectasia ...
Background: Telangiectasia, dilated blood vessels near the surface of the skin of small, varying diameter, are critical dermoscopy structures used in the detection of basal cell carcinoma (BCC). Di...
To dermatologists, the presence of telangiectasia, or narrow blood vessels that typically appear serpiginous or arborizing, is a critical indicator of basal cell carcinoma (BCC).
Advanced basal cell carcinoma: What dermatologists need to …
2022年6月1日 · BCCs are not typically staged but are instead stratified by their risk of recurring or metastasizing. Locally advanced BCCs are those tumors that are not amenable to surgery or radiation therapy.
Basal cell carcinoma - PubMed
THE COMPARISON A Nodular basal cell carcinoma (BCC) with a pearly rolled border, central pigmentation, and telangiectasia on the forehead of an 80-year-old Hispanic woman (light skin tone). B Nodular BCC on the cheek of a 64-year-old Black man.
Dermoscopic features in the diagnosis of different types of basal cell ...
Basal cell carcinoma (BCC) is the most common skin cancer. It tends to be locally invasive but rarely metastasizes. In 6.7% to 8.5% of the cases it presents as a pigmented lesion 1, 2. When clinical diagnosis is not possible, biopsy is used to confirm the diagnosis.
Basal cell carcinoma - Symptoms, diagnosis and treatment | BMJ …
2024年3月1日 · Basal cell carcinoma (BCC) clinically presents as a pearly white/pink papulo-nodule or firm plaque. Patient usually has prominent solar damage or a history of considerable ultraviolet (UV) radiation exposure. Can be locally aggressive, but rarely metastasizes. Diagnosis of a cancer is histologic.
Advanced basal cell carcinoma: What dermatologists need to …
BCCs are not typically staged but are instead stratified by their risk of recurring or metastasizing. Locally advanced BCCs are those tumors that are not amenable to surgery or radiation therapy.