• + Dermatology
    • + Adipocytic
      • + Benign
        • + Angiolipoma
        • + Hibernoma
        • + Lipoma
        • + Pleomorphic lipoma
        • + Spindle cell lipoma
      • + Premalignant/Malignant
        • + Liposarcoma
    • + Adnexal
      • + Benign
        • + Accessory nipple
        • + Adenoma, Sweat Gland
        • + Benign chondroid syringoma
        • + Cylindroma of skin
        • + Dermal duct tumor
        • + Eccrine poroma
        • + Eccrine acrospiroma
        • + Eccrine angiomatous hamartoma
        • + Eccrine papillary adenoma
        • + Eccrine spiradenoma
        • + Hidradenoma papilliferum
        • + Hidroacanthoma simplex
        • + Syringocystadenoma papilliferum
        • + Syringofibroadenoma
        • + Syringoma
      • + Premalignant/Malignant
        • + Adenoid cystic carcinoma
        • + Digital papillary eccrine carcinoma of skin
        • + Endocrine mucin-producing sweat gland carcinoma
        • + Malignant eccrine spiradenoma
        • + Microcystic adnexal carcinoma
        • + Mucinous Adenocarcinoma
    • + Cystic
      • + Benign
        • + Branchioma
        • + Congenital bronchogenic cyst
        • + Dermoid cyst
        • + Epidermal inclusion cyst
        • + Familial thyroglossal duct cyst
        • + Hidrocystoma
        • + Median raphe cyst
        • + Pilar cyst
        • + Presternal ciliated cyst
        • + Proliferating trichilemmal tumor
        • + Steatocystomas
        • + Vellus hair cyst
      • + Premalignant/Malignant
    • + Fibrohistiocytic
      • + Benign
        • + Acquired Digital Fibrokeratoma
        • + Angiofibroma
        • + Atypical fibroxanthoma of skin
        • + Circumscribed storiform collagenoma
        • + Collagen nevus of skin
        • + Cutaneous Fibrous Histiocytoma
        • + Dermatomyofibroma
        • + Epithelioid fibrous histiocytoma
        • + Fibromatosis
        • + Fibrous Hamartoma of Infancy
        • + Fibrous histiocytoma of tendon sheath
        • + Infantile digital fibroma
        • + Keloid
        • + Multinucleate cell angiohistiocytoma
        • + Myofibroma
        • + Nevus elasticus
        • + Nodular fasciitis
        • + Pleomorphic fibroma
        • + Skin tag
      • + Premalignant/Malignant
        • + Dermatofibrosarcoma Protuberans
        • + Skin Undifferentiated Pleomorphic Sarcoma
    • + Follicular
      • + Benign
        • + Acanthoma, Pilar Sheath
        • + Cutaneous Lymphadenoma
        • + Desmoplastic Trichoepithelioma
        • + Desmoplastic trichilemmoma
        • + Dilated pore of winer
        • + Fibrofolliculoma
        • + Pilomatricoma
        • + Trichilemmoma
        • + Trichoadenoma
        • + Trichoepithelioma
        • + Trichofolliculoma
        • + Tumor of follicular infundibulum
      • + Premalignant/Malignant
        • + Pilomatrixoma
    • + Hematolymphoid
      • + Benign
      • + Premalignant/Malignant
        • + Adult T-Cell Lymphoma
        • + Leukemic infiltration of skin
        • + Lymphoma, T-Cell, Cutaneous
        • + Lymphomatoid papulosis
        • + Mycosis fungoides
        • + Nasal Type Extranodal NK
        • + Primary cutaneous anaplastic large cell lymphoma
        • + Primary cutaneous B-cell lymphoma
        • + Subcutaneous panniculitis-like T-cell lymphoma
    • + Keratinocytic
      • + Benign
        • + Acanthoma, Clear Cell
        • + Basal cell papilloma clonal type
        • + Epidermal nevus
        • + Familial benign pemphigus
        • + Hyperkeratosis Lenticularis Perstans
        • + Hyperkeratosis Epidermolytic
        • + Inflammatory linear verrucous epidermal nevus
        • + Inverted follicular keratosis
        • + Melanoacanthoma
        • + Nevus comedonicus
        • + Porokeratosis
        • + Warty dyskeratoma
      • + Premalignant/Malignant
        • + Acantholytic actinic keratosis
        • + Actinic keratosis
        • + Basal cell carcinoma, Adenoid
        • + Basal cell carcinoma, Infundibulocystic
        • + Basal cell carcinoma, Micronodular
        • + Basal cell carcinoma, Nodular
        • + Bowenoid actinic keratosis
        • + Fibroepithelioma of Pinkus
        • + Hypertrophic solar keratosis
        • + Keratoacanthoma
        • + Lichenoid actinic keratosis
        • + Morpheaform basal cell carcinoma
        • + Paget Disease Extramammary
        • + Pigmented basal cell carcinoma
        • + Skin Squamous Cell Carcinoma In Situ
        • + Squamous cell carcinoma
        • + Squamous cell carcinoma, spindle cell
        • + Superficial basal cell carcinoma
        • + Verrucous carcinoma
    • + Melanocytic
      • + Benign
        • + Acquired melanocytic nevus
        • + Balloon cell nevus
        • + Blue nevus
        • + Café-au-lait macules with temporal dysrhythmia
        • + Congenital melanocytic nevus
        • + Freckles
        • + Halo nevus
        • + Lentigo simplex
        • + Recurrent melanocytic nevus
        • + Severe growth deficiency, strabismus, extensive dermal melanocytosis, intellectual disability syndrome
        • + Solar lentigo
      • + Premalignant/Malignant
        • + Deep penetrating melanocytic nevus
        • + Dysplastic Nevus
        • + Epithelioid and spindle cell nevus
        • + Melanoma
    • + Neural or neuroendocrine
      • + Benign
        • + Cellular neurothekeoma
        • + Dermal nerve sheath myxoma
        • + Ganglioneuroma of skin
        • + Granular cell tumor
        • + Neurilemmoma
        • + Neurofibroma
        • + Palisaded encapsulated neuroma
        • + Perineurioma
        • + Polydactyly
        • + Traumatic neuroma
      • + Premalignant/Malignant
        • + Malignant peripheral nerve sheath tumor
        • + Merkel cell carcinoma
        • + Neuroblastoma
    • + Sebaceous
      • + Benign
        • + Nevus Sebaceus of Jadassohn
        • + Sebaceoma
        • + Sebaceous adenoma
        • + Sebaceous hyperplasia
      • + Premalignant/Malignant
        • + Sebaceous Adenocarcinoma
    • + Smooth muscle
      • + Benign
        • + Genital leiomyoma
        • + Pigmented hairy epidermal nevus
        • + Pilar leiomyoma
      • + Premalignant/Malignant
        • + Leiomyosarcoma
    • + Vascular
      • + Benign
        • + Angiokeratoma
        • + Angioma serpiginosum
        • + Angiomatosis, Bacillary
        • + Congenital arteriovenous malformation
        • + Epithelioid hemangioma of skin
        • + Glomeruloid hemangioma
        • + Glomus tumor
        • + Hemangioma, Cavernous
        • + Hemangiopericytoma
        • + Hobnail Hemangioma
        • + Intravascular papillary endothelial hyperplasia
        • + Kimura disease
        • + Lymphangioma
        • + Microvenular hemangioma
        • + Port-Wine Stain
        • + Pyogenic granuloma
        • + Senile angioma
        • + Spindle cell hemangioma
        • + Strawberry nevus of skin
        • + Tufted angioma of skin
        • + Venous lake
      • + Premalignant/Malignant
        • + Hemangiosarcoma
        • + Kaposi sarcoma
        • + Kaposiform hemangioendothelioma