PAD-UFES-20: a skin lesion dataset composed of patient data and clinical images collected from smartphones

Summary description - The PAD-UFES-20 dataset was collected along with the Dermatological and Surgical Assistance Program (in Portuguese: Programa de Assistência Dermatológica e Cirurgica - PAD) at the Federal University of Espírito Santo (UFES-Brazil), which is a nonprofit program that provides free skin lesion treatment, in particular, to low-income people who cannot afford private treatment. - The dataset consists of 2,298 samples of six different types of skin lesions. Each sample consists of a clinical image and up to 22 clinical features including the patient's age, skin lesion location, Fitzpatrick skin type, and skin lesion diameter. - The skin lesions are: Basal Cell Carcinoma (BCC), Squamous Cell Carcinoma (SCC), Actinic Keratosis (ACK), Seborrheic Keratosis (SEK), Bowen’s disease (BOD), Melanoma (MEL), and Nevus (NEV). As the Bowen’s disease is considered SCC in situ, we clustered them together, which results in six skin lesions in the dataset, three skin cancers (BCC, MEL, and SCC) and three skin disease (ACK, NEV, and SEK) - All BCC, SCC, and MEL are biopsy-proven. The remaining ones may have clinical diagnosis according to a consensus of a group of dermatologists. In total, approximately 58% of the samples in this dataset are biopsy-proven. This information is described in the metadata. - The images present in the dataset have different sizes because they are collected using different smartphone devices. All images are available in .png format. - The metadata associated with each skin lesion is composed of up to 26 features. All features are available in a CSV document in which each line represents a skin lesion and each column a metadata feature. - In total, there are 1,373 patients, 1,641 skin lesions, and 2,298 images present in the dataset. Each image/sample has a reference to the patient and the skin lesion in the metadata. Ethics statement The dataset was collected along with the Dermatological and Surgical Assistance Program (PAD) of the Federal University of Espírito Santo. The program is managed by the Department of Specialized Medicine and was approved by the university ethics committee (nº 500002/478) and the Brazilian government through Plataforma Brasil (nº 4.007.097), the Brazilian agency responsible for research involving human beings. In addition, all data is collected under patient consent and the patient’s privacy is completely preserved. ____ If you have any question do not hesitate to get in touch with us.

数据集概述：
PAD-UFES-20数据集与巴西圣埃斯皮里图联邦大学（Federal University of Espírito Santo, 缩写UFES-Brazil）的皮肤外科与皮肤病援助项目（葡萄牙语原称Programa de Assistência Dermatológica e Cirurgica，缩写PAD）联合采集。该项目为非营利性公益项目，面向无力承担私人诊疗费用的低收入人群提供免费皮肤病变治疗服务。
该数据集包含6类不同皮肤病变的2298条样本，每条样本包含1张临床影像，以及最多22项临床特征，涵盖患者年龄、皮肤病变部位、菲茨帕特里克（Fitzpatrick）皮肤分型、皮肤病变直径等信息。
本次数据集涵盖的皮肤病变类型包括基底细胞癌（Basal Cell Carcinoma, BCC）、鳞状细胞癌（Squamous Cell Carcinoma, SCC）、光化性角化病（Actinic Keratosis, ACK）、脂溢性角化病（Seborrheic Keratosis, SEK）、鲍温病（Bowen’s disease, BOD）、黑素瘤（Melanoma, MEL）以及痣（Nevus, NEV）。鉴于鲍温病被归类为原位鳞状细胞癌，故将其与鳞状细胞癌合并为一类，最终数据集中共包含6类皮肤病变：3类皮肤癌（BCC、MEL与SCC）与3类皮肤病症（ACK、NEV与SEK）。
所有BCC、SCC及MEL样本均经活检病理确诊，其余样本则由多名皮肤科医师联合会诊作出临床诊断。该数据集中共约58%的样本经活检证实，相关信息已在元数据（Metadata）中注明。
数据集中的影像因采集所用智能手机设备不同而尺寸各异，所有影像均以.png格式存储。
每条皮肤病变对应的元数据（Metadata）最多包含26项特征，所有特征均存储于CSV文档中，文档内每一行对应一条皮肤病变样本，每一列对应一项元数据特征。
该数据集总计包含1373名患者、1641处皮肤病变以及2298张影像，每条影像/样本在元数据中均标注了对应的患者与皮肤病变信息。

伦理声明：
本数据集与巴西圣埃斯皮里图联邦大学的皮肤外科与皮肤病援助项目（PAD）联合采集。该项目由专科医学部管理，已获得该校伦理委员会（编号：nº 500002/478）以及巴西政府通过巴西人类研究监管平台Plataforma Brasil（编号：nº 4.007.097）的审批。此外，所有数据均在获得患者知情同意后采集，患者隐私得到完全保护。

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