The BCN20000 dataset consists of dermoscopic images of skin lesions taken between 2010 and 2016 at the Hospital Clínic in Barcelona. It aims to tackle the challenge of classifying dermoscopic images of skin cancer under diverse conditions, including lesions in challenging locations (such as nails and mucosa), large lesions exceeding the dermoscopy device's aperture, and hypo-pigmented lesions.
A detailed data descriptor is available: Hernández-Pérez, C., Combalia, M., Podlipnik, S. et al. BCN20000: Dermoscopic Lesions in the Wild. Sci Data 11, 641 (2024). https://doi.org/10.1038/s41597-024-03387-w
{ "age_approx": 0, "anatom_site_general": "lower extremity", "benign_malignant": "benign", "concomitant_biopsy": false, "diagnosis": "nevus", "diagnosis_1": "Benign", "diagnosis_2": "Benign melanocytic proliferations", "diagnosis_3": "Nevus", "diagnosis_confirm_type": "confocal microscopy with consensus dermoscopy", "image_type": "dermoscopic", "lesion_id": "IL_8811808", "melanocytic": true, "sex": "female" }
{ "age_approx": 35, "benign_malignant": "benign", "concomitant_biopsy": true, "diagnosis": "nevus", "diagnosis_1": "Benign", "diagnosis_2": "Benign melanocytic proliferations", "diagnosis_3": "Nevus", "diagnosis_confirm_type": "histopathology", "image_type": "dermoscopic", "lesion_id": "IL_4835175", "melanocytic": true, "sex": "male" }
{ "age_approx": 45, "anatom_site_general": "anterior torso", "benign_malignant": "benign", "concomitant_biopsy": false, "diagnosis": "nevus", "diagnosis_1": "Benign", "diagnosis_2": "Benign melanocytic proliferations", "diagnosis_3": "Nevus", "image_type": "dermoscopic", "lesion_id": "IL_3829181", "melanocytic": true, "sex": "female" }
{ "age_approx": 70, "anatom_site_general": "head/neck", "benign_malignant": "malignant", "concomitant_biopsy": true, "diagnosis": "melanoma", "diagnosis_1": "Malignant", "diagnosis_2": "Malignant melanocytic proliferations (Melanoma)", "diagnosis_3": "Melanoma, NOS", "diagnosis_confirm_type": "histopathology", "image_type": "dermoscopic", "lesion_id": "IL_5372134", "melanocytic": true, "sex": "male" }
{ "age_approx": 30, "anatom_site_general": "anterior torso", "benign_malignant": "benign", "concomitant_biopsy": false, "diagnosis": "nevus", "diagnosis_1": "Benign", "diagnosis_2": "Benign melanocytic proliferations", "diagnosis_3": "Nevus", "diagnosis_confirm_type": "confocal microscopy with consensus dermoscopy", "image_type": "dermoscopic", "lesion_id": "IL_7040054", "melanocytic": true, "sex": "male" }
{ "age_approx": 70, "anatom_site_general": "head/neck", "concomitant_biopsy": true, "diagnosis": "actinic keratosis", "diagnosis_1": "Indeterminate", "diagnosis_2": "Indeterminate epidermal proliferations", "diagnosis_3": "Solar or actinic keratosis", "diagnosis_confirm_type": "histopathology", "image_type": "dermoscopic", "lesion_id": "IL_5669390", "melanocytic": false, "sex": "male" }
{ "age_approx": 70, "anatom_site_general": "head/neck", "concomitant_biopsy": false, "diagnosis": "basal cell carcinoma", "diagnosis_1": "Malignant", "diagnosis_2": "Malignant adnexal epithelial proliferations - Follicular", "diagnosis_3": "Basal cell carcinoma", "image_type": "dermoscopic", "lesion_id": "IL_5363787", "melanocytic": false, "sex": "male" }
{ "age_approx": 50, "anatom_site_general": "anterior torso", "benign_malignant": "benign", "concomitant_biopsy": false, "diagnosis": "nevus", "diagnosis_1": "Benign", "diagnosis_2": "Benign melanocytic proliferations", "diagnosis_3": "Nevus", "image_type": "dermoscopic", "lesion_id": "IL_7184368", "melanocytic": true, "sex": "male" }
{ "age_approx": 65, "anatom_site_general": "anterior torso", "concomitant_biopsy": true, "diagnosis": "melanoma metastasis", "diagnosis_1": "Malignant", "diagnosis_2": "Malignant melanocytic proliferations (Melanoma)", "diagnosis_3": "Melanoma metastasis", "diagnosis_confirm_type": "histopathology", "image_type": "dermoscopic", "lesion_id": "IL_2344492", "melanocytic": true, "sex": "female" }
{ "age_approx": 60, "anatom_site_general": "anterior torso", "benign_malignant": "malignant", "concomitant_biopsy": true, "diagnosis": "melanoma", "diagnosis_1": "Malignant", "diagnosis_2": "Malignant melanocytic proliferations (Melanoma)", "diagnosis_3": "Melanoma, NOS", "diagnosis_confirm_type": "histopathology", "image_type": "dermoscopic", "lesion_id": "IL_5800519", "melanocytic": true, "sex": "female" }
{ "age_approx": 80, "anatom_site_general": "palms/soles", "anatom_site_special": "acral palms or soles", "benign_malignant": "benign", "concomitant_biopsy": false, "diagnosis": "nevus", "diagnosis_1": "Benign", "diagnosis_2": "Benign melanocytic proliferations", "diagnosis_3": "Nevus", "image_type": "dermoscopic", "lesion_id": "IL_8384300", "melanocytic": true, "sex": "female" }
{ "age_approx": 10, "anatom_site_general": "lower extremity", "benign_malignant": "benign", "concomitant_biopsy": true, "diagnosis": "nevus", "diagnosis_1": "Benign", "diagnosis_2": "Benign melanocytic proliferations", "diagnosis_3": "Nevus", "diagnosis_confirm_type": "histopathology", "image_type": "dermoscopic", "lesion_id": "IL_9686092", "melanocytic": true, "sex": "female" }
{ "age_approx": 70, "anatom_site_general": "head/neck", "concomitant_biopsy": true, "diagnosis": "basal cell carcinoma", "diagnosis_1": "Malignant", "diagnosis_2": "Malignant adnexal epithelial proliferations - Follicular", "diagnosis_3": "Basal cell carcinoma", "diagnosis_confirm_type": "histopathology", "image_type": "dermoscopic", "lesion_id": "IL_3822634", "melanocytic": false, "sex": "male" }
{ "age_approx": 30, "anatom_site_general": "palms/soles", "anatom_site_special": "acral palms or soles", "benign_malignant": "benign", "concomitant_biopsy": true, "diagnosis": "nevus", "diagnosis_1": "Benign", "diagnosis_2": "Benign melanocytic proliferations", "diagnosis_3": "Nevus", "diagnosis_confirm_type": "histopathology", "image_type": "dermoscopic", "lesion_id": "IL_1470319", "melanocytic": true, "sex": "female" }
{ "age_approx": 80, "anatom_site_general": "upper extremity", "concomitant_biopsy": true, "diagnosis": "squamous cell carcinoma", "diagnosis_1": "Malignant", "diagnosis_2": "Malignant epidermal proliferations", "diagnosis_3": "Squamous cell carcinoma, NOS", "diagnosis_confirm_type": "histopathology", "image_type": "dermoscopic", "lesion_id": "IL_9794380", "melanocytic": false, "sex": "female" }
{ "age_approx": 55, "anatom_site_general": "head/neck", "concomitant_biopsy": false, "diagnosis": "actinic keratosis", "diagnosis_1": "Indeterminate", "diagnosis_2": "Indeterminate epidermal proliferations", "diagnosis_3": "Solar or actinic keratosis", "diagnosis_confirm_type": "confocal microscopy with consensus dermoscopy", "image_type": "dermoscopic", "lesion_id": "IL_3588629", "melanocytic": false, "sex": "female" }
{ "age_approx": 55, "anatom_site_general": "lower extremity", "concomitant_biopsy": true, "diagnosis": "basal cell carcinoma", "diagnosis_1": "Malignant", "diagnosis_2": "Malignant adnexal epithelial proliferations - Follicular", "diagnosis_3": "Basal cell carcinoma", "diagnosis_confirm_type": "histopathology", "image_type": "dermoscopic", "lesion_id": "IL_6191184", "melanocytic": false, "sex": "female" }
{ "age_approx": 50, "anatom_site_general": "lower extremity", "concomitant_biopsy": true, "diagnosis": "basal cell carcinoma", "diagnosis_1": "Malignant", "diagnosis_2": "Malignant adnexal epithelial proliferations - Follicular", "diagnosis_3": "Basal cell carcinoma", "diagnosis_confirm_type": "histopathology", "image_type": "dermoscopic", "lesion_id": "IL_9710461", "melanocytic": false, "sex": "male" }
{ "age_approx": 85, "anatom_site_general": "head/neck", "benign_malignant": "malignant", "concomitant_biopsy": true, "diagnosis": "melanoma", "diagnosis_1": "Malignant", "diagnosis_2": "Malignant melanocytic proliferations (Melanoma)", "diagnosis_3": "Melanoma, NOS", "diagnosis_confirm_type": "histopathology", "image_type": "dermoscopic", "lesion_id": "IL_9804385", "melanocytic": true, "sex": "male" }
{ "age_approx": 70, "anatom_site_general": "anterior torso", "concomitant_biopsy": true, "diagnosis": "seborrheic keratosis", "diagnosis_1": "Benign", "diagnosis_2": "Benign epidermal proliferations", "diagnosis_3": "Seborrheic keratosis", "diagnosis_confirm_type": "histopathology", "image_type": "dermoscopic", "lesion_id": "IL_8992666", "melanocytic": false, "sex": "female" }
{ "age_approx": 55, "anatom_site_general": "anterior torso", "concomitant_biopsy": true, "diagnosis": "basal cell carcinoma", "diagnosis_1": "Malignant", "diagnosis_2": "Malignant adnexal epithelial proliferations - Follicular", "diagnosis_3": "Basal cell carcinoma", "diagnosis_confirm_type": "histopathology", "image_type": "dermoscopic", "lesion_id": "IL_9110451", "melanocytic": false, "sex": "male" }
{ "age_approx": 55, "anatom_site_general": "anterior torso", "benign_malignant": "malignant", "concomitant_biopsy": true, "diagnosis": "melanoma", "diagnosis_1": "Malignant", "diagnosis_2": "Malignant melanocytic proliferations (Melanoma)", "diagnosis_3": "Melanoma, NOS", "diagnosis_confirm_type": "histopathology", "image_type": "dermoscopic", "lesion_id": "IL_1724935", "melanocytic": true, "sex": "female" }
{ "age_approx": 45, "anatom_site_general": "lower extremity", "benign_malignant": "benign", "concomitant_biopsy": true, "diagnosis": "nevus", "diagnosis_1": "Benign", "diagnosis_2": "Benign melanocytic proliferations", "diagnosis_3": "Nevus", "diagnosis_confirm_type": "histopathology", "image_type": "dermoscopic", "lesion_id": "IL_1201388", "melanocytic": true, "sex": "male" }
{ "age_approx": 70, "anatom_site_general": "anterior torso", "benign_malignant": "benign", "concomitant_biopsy": true, "diagnosis": "nevus", "diagnosis_1": "Benign", "diagnosis_2": "Benign melanocytic proliferations", "diagnosis_3": "Nevus", "diagnosis_confirm_type": "histopathology", "image_type": "dermoscopic", "lesion_id": "IL_5938327", "melanocytic": true, "sex": "female" }
{ "age_approx": 45, "anatom_site_general": "anterior torso", "concomitant_biopsy": true, "diagnosis": "seborrheic keratosis", "diagnosis_1": "Benign", "diagnosis_2": "Benign epidermal proliferations", "diagnosis_3": "Seborrheic keratosis", "diagnosis_confirm_type": "histopathology", "image_type": "dermoscopic", "lesion_id": "IL_0855494", "melanocytic": false, "sex": "female" }
{ "age_approx": 75, "anatom_site_general": "anterior torso", "concomitant_biopsy": false, "diagnosis": "squamous cell carcinoma", "diagnosis_1": "Malignant", "diagnosis_2": "Malignant epidermal proliferations", "diagnosis_3": "Squamous cell carcinoma, NOS", "image_type": "dermoscopic", "lesion_id": "IL_4117045", "melanocytic": false, "sex": "male" }