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Pigmented Lesions

Inflammatory Dermatoses

Skin Neoplasms

Dermatopathology Diagnostic Accuracy
and Concordance

Mnemonics for Dermatology/Dermatopathology
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Dermatopathology Slide Atlas
They are stored as Adobe PDF files and you will need a reader to access these.
Cases that are marked with an asterisk (*) are part of the 200 "must know" cases for dermatology boards.
Iatrogenic
Electrodessication Artifact*
Inflammatory
Acanthosis nigricans*
Acne Keloidalis Nuchae*
Acne Keloidalis Nuchae-2*
Acne Rosacea
Acne Rosacea-2
Acne Rosacea-Granulomatous (Lupus Miliaris Disseminatus Facei)*
Acrodermatitis Enteropathica
Alopecia Areata*
Alopecia Mucinosa/Follicular Mucinosis*
Alopecia Mucinosa/Follicular Mucinosis-2*
Amalgam Tattoo*
Amalagam Tattoo-2*
Angiolymphoid Hyperplasia with Eosinophilia*
Annular Elastotic Actinic Granuloma of O'Brien
Anti-Phospholipid Antibody Syndrome
Atrophie blanche*
Axillary Granular Parakeratosis
Axillary Granular Parakeratosis-2
Axillary Granular Parakeratosis-3
Behcet's Syndrome
Buerger's Disease
Bullous Pemphigoid*
Bullous Pemphigoid-2*
Bullous Pemphigoid-3*
Bullous Pemphigoid-4*
Calcaneal Petechiae (Talon Noir)
Chilblains (Perniosis)
Chondrodermatitis Nodularis Helicis*
Chondrodermatitis Nodularis Helicis-2*
Chondrodermatitis Nodularis Helicis-3*
Chondrodermatitis Nodularis Helicis-4*
Contact Dermatitis, Allergic
Cutis Laxa
Cyroglobulinemia*
Cryoglobulinemia-2*
Dermatitis herpetiformis*
Dermatitis herpetiformis-2*
Dermatitis herpetiformis-3*
Elastosis Perforans Serpiginosa*
Erythema Annulare Centrifugum*
Erythema Annulare Centrifugum-2*
Erythema Induratum (Nodular Vasculitis)*
Erythema Induratum (Nodular Vasculitis)-2*
Erythema Multiforme*
Erythema Nodosum*
Erythema Nodosum-2*
Fixed Drug Reaction*
Foreign Body Granuloma
Foreign Body Granuloma, Sarcoidal Type
Foreign Body Granuloma, Sarcoidal Type-2
Gianotti-Crosti Syndrome
Glucagonoma Syndrome/Necrolytic Migratory Erythema*
Gout*
Graft Versus Host Disease*
Granuloma Annulare*
Granuloma Annulare-2*
Granuloma Annulare-Incomplete/Interstitial*
Granuloma faciale*
Grover's Disease
Hailey-Hailey Disease*
Hidradenitis Suppurativa
Impetigo
Impetigo Herpetiformis*
Incontinentia Pigmenti*
Keratin Granuloma*
Keratin Granuloma-2*
Leukocytoclastic Vasculitis*
Lichen Amyloidosis
Lichen Amyloidosis-2
Lichen Nitidus*
Lichen Planopilaris*
Lichen Planus*
Lichen Sclerosus et Atrophicus
*
Lichen simplex chronicus/Prurigo Nodularis*
Lichen Simplex Chronicus/Prurigo Nodularis-2*
Lichen Striatus*
Lichenoid Drug Reaction*
Lipodermatosclerosis/Sclerosing Panniculitis*
Lupus-Discoid Lupus Erythematosus*
Lupus-Discoid Lupus Erythematosus-2*
Lupus-Discoid Lupus Erythematosus-3*
Lupus Profundus*
Lupus Profundus-2*
Lupus-Systemic Lupus Erythematosus with Thrombotic Vasculopathy
Lupus-Systemic Lupus Erythematosus with Tumid Features*
Lupus-SLE with Tumid Features-2*
Lymphocytic Thrombophilic Arteritis
Lymphocytic Vasculitis
Macular Amyloid*
Melasma
Necrobiosis lipoidica*
Nephrogenic Systemic Fibrosis
Ochronosis*
Osteomyelitis, Acute
Pancreatic Fat Necrosis*
Paraffinoma/Sclerosing Lipogranuloma*
Paraffinoma-2*
Pemphigus Erythematosus*
Pemphigus Foliaceus
Pemphigus Vulgaris*
Perforating Folliculitis/Kyrle's Disease*
Pigmented Purpuric Dermatosis*
Pigmented Purpuric Dermatosis-2*
Pityriasis Lichenoides et Varioliformis Acuta (PLEVA)*
Pityriasis Rosea*
Pityriasis Rubra Pilaris*
Polyarteritis Nodosa*
Polymorphous Light Eruption*
Polymorphous Light Eruption-2*
Porphyria Cutanea Tarda*
Porphyria Cutanea Tarda-2*
Porphyria Cutanea Tarda-3*
Post-Inflammatory Pigmentary Alteration (Ashy Dermatosis)
Pretibial Myxedema*
Pseudoxanthoma Elasticum*
Pseudoxanthoma Elasticum-2*
Psoriasis-Guttate*
Psoriasis Vulgaris*
Psoriasis Vulgaris-2*
Psoriasis Vulgaris-3*
Radiation Dermatitis, Chronic*
Radiation Dermatitis, Subacute
Rheumatoid Neutrophilic Dermatosis
Rheumatoid Nodule*
Rheumatoid Nodule-2*
Rheumatoid Nodule-3*
Rhinophyma
Sarcoidosis*
Sarcoidosis-2*
Sarcoidosis-3*
Scleredema
Scleredema-2
Scleroderma/Morphea and Lichen Sclerosus
Scleroderma/Morphea*
Scleroderma/Morphea-2*
Scleroderma/Morphea-3*
Scleroderma/Morphea, Inflammatory-4*
Scleroderma/Morphea-5*
Scleromyxedema
Seborrheic Dermatitis
Stasis Dermatitis*
Stasis Dermatitis-2*
Subcutaneous Fat Necrosis of the Newborn*
Suture Granuloma*
Sweet's Syndrome*
Tattoo*
Tattoo, Amalgam*
Tattoo, Pencil Lead*
Tattoo, with Seborrheic Keratosis*
Tattoo, with Squamous Cell Carcinoma
Thrombotic Vasculopathy
Thrombotic Vasculopathy-2
Toxic Epidermal Necrolysis*
Trichotillomania/Traction Alopecia*
Urticaria
Urticaria-2
Hematopoietic Lesions
Langerhans Cell Histiocytosis (Histiocytosis X)*
Leukemia Cutis, AML*
Leukemia Cutis, AML-2*
Leukemia Cutis, CLL*
Anaplastic Large Cell Lymphoma (Ki-1, CD30+)*
Anaplastic Large Cell Lymphoma-2*
Anaplastic Large Cell Lymphoma-3*
Cutaneous B-cell Lymphoma*
Cutaneous B-cell Lymphoma-2*
Cutaneous B-cell Lymphoma-3*
Cutaneous B-cell Lymphoma-4*
Cutaneous Lymph Node
Cutaneous T-Cell Lymphoma-CD56+, Gamma-Delta
Diffuse Large B-cell Lymphoma
Immunocytoma
Lymphomatoid Papulosis*
Lymphomtoid Papulosis-2*
Lymphomatoid Papulosis-3*
Mastocytoma*
Mastocytoma-2*
Mycosis Fungoides*
Mycosis Fungoides-2*
Mycosis Fungoides-3*
Mycosis Fungoides-4*
Mycosis Fungoides-5*
Mycosis Fungoides-6*
Mycosis Fungoides-7*
Plasmacytoma
Plasmacytoma-2
Plasmacytoma-3
Pseudolymphoma (Reactive Lymphoid Hyperplasia)*
Infectious
Arthropod Bite
Blastomycosis
Chromomycosis*
Coccidiomycosis*
Cryptococcosis*
Dermatophytosis
Dermatophytosis (Tinea capitis)
Dermatophytosis (Tinea capitis)-2
Herpes Simplex Virus
Herpes Simplex Virus-2
Herpes Simplex Virus-3
Herpes Simplex Virus-4
Herpes Simplex Virus, Arising with Squamous Cell Carcinoma
Leishmaniasis*
Leprosy, Lepromatous*
Leprosy, Lepromatous-2*
Leprosy, Lepromatous-3*
Leprosy, Tuberculoid*
Lupus Vulgaris
Lupus Vulgaris-2
Molluscum Contagiosum
Molluscum Contagiosum, Inflamed
Onychomycosis
Orf (Parapox Infection)*
Scabies
Scabies, Norwegian
Syphilis, Secondary*
Syphilis, Secondary-2*
Tinea Versicolor*
Tinea Versicolor-2*
Tuberculosis, Cutaneous
Zoster (Shingles)
Zoster (Shingles)-2
Zoster (Shingles)-3
Zoster (Chicken Pox)
Melanocytic Lesions
Lentigo, Mucosal (Labial Melanotic Macule)
Lentigo, Mucosal-2
Lentigo, Solar
Malignant Melanoma*
Malignant Melanoma-2*
Malignant Melanoma, Acral Lentiginous
Malignant Melanoma, Amelanotic Type
Malignant Melanoma, Desmoplastic Type
Malignant Melanoma, Desmoplastic Type-2
Malignant Melanoma, Desmoplastic Type-3
Malignant Melanoma, Lymphovascular Invasion
Malignant Melanoma, Arising with Melanocytic Nevus
Malignant Melanoma, Metastatic
Malignant Melanoma, Metastatic-2
Malignant Melanoma, Metastatic-3
Malignant Melanoma, Nevoid Type
Malignant Melanoma, Nevoid Type-2
Malignant Melanoma, Nevoid Type-3
Malignant Melanoma with Psuedoepitheliomatous Hyperplasia
Malignant Melanoma, Regression
Malignant Melanoma, Rhabdoid Type
Malignant Melanoma, Recurrent
Malignant Melanoma, with Satellite Lesion
Malignant Melanoma, Spitzoid Type
Malignant Melanoma, Superficial Spreading Type*
Malignant Melanoma, Lentigo Maligna Melanoma Type-1*
Malignant Melanoma, Lentigo Maligna Melanoma Type-2*
Malignant Melanoma in Situ, Lentigo Maligna Type*
Malignant Melanoma in Situ, Lentigo Maligna Type-2*
Malignant Melanoma in Situ, Lentigo Maligna Type-3*
Malignant Melanoma in Situ-Nail Bed
Malignant Melanoma in Situ, Arising with Melanocytic Nevus
Malignant Melanoma in Situ-Superficial Spreading Type*
Malignant Melanoma in Situ-Superficial Spreading Type-2*
Nevus, Balloon Cell*
Nevus, Cellular Blue*
Nevus, Combined
Nevus, Combined-2
Nevus, Compound*
Nevus, Congenital*
Nevus, Congenital-2*
Nevus, Congenital-3*
Nevus, Congenital-4*
Nevus, Dysplastic
Nevus, Fatty Metaplasia
Nevus, Halo*
Nevus, Halo-2*
Nevus, Halo-3*
Nevus, Halo-4*
Nevus, Intradermal*
Nevus, Intradermal with Basal Cell Carcinoma
Nevus, Intradermal with Pseudovascular Changes
Nevus, Nail
Nevus, Neurotized
Nevus, Neurotized-2
Nevus of Ota
Nevus, Pigmented Spindle Cell
Nevus, Pigmented Spindle Cell-2
Nevus, Recurrent*
Nevus, Spitz*
Nevus, Spitz-2*
Nevus, Spitz-Junctional Type
Tumors, Epithelial
Accessory Breast Tissue
Accessory Nipple (Supernumerary Nipple)*
Accessory Nipple-2*
Accessory Tragus*
Actinic Keratosis with Cutaneous Horn
Adenoid Cystic Carcinoma
Adenosquamous Cell Carcinoma
Apocrine Cystadenoma
Arsenical Keratosis
Basal Cell Carcinoma with Amyloid
Basal Cell Carcinoma-Fibroepithelioma of Pinkus
Basal Cell Carcinoma-Fibroepithelioma of Pinkus-2
Basal Cell Carcinoma-Metatypical
Basal Cell Carcinoma-Morpheaform*
Basal Cell Carcinoma-Morpheaform-2*
Basal Cell Carcinoma-Nodular Type with Benign Salivary Gland Tissue
Basal Cell Carcinoma with Perineural Invasioin
Basal Cell Carcinoma-Sclerosing*
Basal Cell Carcinoma-Sclerosing-2*
Basal Cell Carcinoma-Sclerosing Pigmented*
Basal Cell Carcinoma, Arising with Squamous Cell Carcinoma
Basal Cell Carcinoma-Superficial Multifocal Type*
Basal Cell Carcinoma with Syringoma
Bowen's Disease-Clear Cell Type*
Bowen's Disease-Clear Cell Type-2*
Bowen's Disease-Arising on Ear
Bowen's Disease with Melanocytic Nevus
Bowenoid Papulosis
Clear Cell Acanthoma (Pale Cell Acanthoma)*
Condyloma
Condyloma-2
Cylindroma*
Cylindroma-2*
Cyst, Bronchogenic*
Cyst, Steatocystoma*
Cyst, Steatocystoma-2*
Cyst, Vellus Hair
Cyst, Verrucous Epidermal
Darier's Disease*
Darier's Disease-2*
Eccrine Poroma*
Eccrine Poroma-2*
Eccrine Poroma-3*
Eccrine Poroma-4*
Eccrine Spiradenoma*
Eccrine Spiradenoma-2*
Eccrine Spiradenoma-3*
Eccrine Spiradenoma-4*
Epidermolytic Hyperkeratosis*
Epidermolytic Hyperkeratosis-2*
Erythroplasia of Queyrat (Bowen's disease of the glans penis)*
Gynecomastia
Hidradenoma, Clear Cell Type (Eccrine Acrospiroma)*
Hidradenoma, Nodular and Cystic
Hidradenoma Papilliferum*
Hidroacanthoma Simplex
Hidrocystoma, Apocrine*
Inverted Follicular Keratosis/Irritated Seborrheic Keratosis*
Lichen Planus-Like Keratosis*
Lichen Planus-Like Keratosis-2*
Merkel Cell Carcinoma*
Merkel Cell Carcinoma-2*
Metastatic Adenocarcinoma, Consistent with Breast Primary*
Metastatic Adenocarcinoma, Consistent with Breast Primary-2*
Metastatic Adenocarcinoma, Consistent with Breast Primary-3*
Metastatic Adenocarcinoma, Consistent with Breast Primary Lobular-4*
Metastatic Adenocarcinoma, Consistent with Breast Primary-5*
Metastatic Adenocarcinoma, Consistent with Breast Primary Lobular-6*
Metastatic Adenocarcinoma, Consistent with Lung Primary
Metastatic Adenocarcinoma, Signet Ring Type (Esophageal Primary)
Metastatic Adenocarcinoma, Unknown Primary
Metastatic Papillary Adenocarcinoma, Thyroid Primary
Metastatic Renal Cell Carcinoma*
Microcystic Adnexal Carcinoma/Sclerosing Sweat Duct Carcinoma*
Mixed Tumor of the Skin (Chondroid Syrginoma)*
Mixed Tumor of the Skin (Chondroid Syrginoma)-2*
Mixed Tumor of the Skin (Chondroid Syrgingoma)-3*
Mixed Tumor of the Skin (Chondroid Syringoma)-4*
Mixed Tumor of the Skin (Chondroid Syringoma)-5*
Mixed Tumor of the Skin (Chondroid Syringoma)-6*
Muir-Torre Tumor
Muir-Torre Tumor-2
Nevus Sebaceus*
Nevus Sebaceus-2*
Nevus Sebaceus-3*
Paget's Disease of the Nipple*
Paget's, Extramammary*
Papillary Eccrine Adenoma
Papillary Eccrine Adenoma-2
Penile Intraepithelial Neoplasia*
Pilomatrix Carcinoma
Pilomatricoma*
Pilomatricoma-Ossified*
Pilomatricoma-Ossified-2*
Porocarcinoma
Porocarcinoma-2
Porokeratosis-DSAP*
Porokeratosis of Mibelli*
Porokeratosis of Mibelli-2*
Porokeratosis of Mibelli-3*
Porokeratosis of Mibelli-4*
Porokeratosis of Mibelli-5*
Proliferating Pilar Tumor*
Proliferating Pilar Tumor-2*
Rudimentary Polydactyly
Sebaceoma
Sebaceoma-2
Sebaceous Adenoma*
Sebaceous Adenoma-2*
Sebaceous Adenoma-3*
Sebaceous Carcinoma*
Sebaceous Carcinoma-2*
Sebaceous Hyperplasia
Seborrheic Keratosis*
Seborrheic Keratosis-Clonal Type*
Seborrheic Keratosis-Clonal Type-2*
Seborrheic Keratosis-Irritated
Seborrheic Keratosis-Irritated-2
Seborrheic Keratosis-Irritated-3
Seborrheic Keratosis-Irritated-4
Seborrheic Keratosis-Pigmented Type
Seborrheic Keratosis-Reticulated Type
Squamous Cell Carcinoma, Acantholytic*
Squamous Cell Carcinoma, Acantholytic-2*
Squamous Cell Carcinoma, Invasive Bowenoid Type
Squamous Cell Carcinoma, Arising with Cyst
Squamous Cell Carcinoma, Invasive into Salivary Gland
Squamous Cell Carcioma, Keratoacanthoma
Squamous Cell Carcinoma, Keratoacanthoma-2
Squamous Cell Carcinoma, Mucinous
Squamous Cell Carcinoma, Poorly Differentiated-1
Squamous Cell Carcinoma, Poorly Differentiated-2
Squamous Cell Carcinoma, Poorly Differentiated-3
Squamous Cell Carcinoma, Poorly Differentiated-4
Squamous Cell Carcinoma, Poorly Differentiated-5
Squamous Cell Carcinoma, Poorly Differentiated-6
Squamous Cell Carcinoma, Sarcomatoid
Squamous Cell Carcinoma, Arising with a Verruca Vulgaris
Syringocystadenoma Papilliferum*
Syringocystadenoma Papilliferum-2*
Syringofibroadenoma
Syringoma*
Syringoma-2*
Trichoadenoma
Trichoepithelioma*
Trichoepithelioma-2*
Trichofolliculoma*
Trichofolliculoma-2*
Tricholemmoma*
Tricholemmoma, Desmoplastic*
Verruca Plana (Flat Wart)*
Verruca Plana (Flat Wart)-2*
Verruca Vulgaris
Verruca Vulgaris-2
Verruca Vulgaris-3
Verrucous Carcinoma*
Verrucous Carcinoma-2*
Warty Dyskeratoma*
Warty Dyskeratoma-Follicular/Cystic*
Tumors-Soft Tissue
Amyloid, Nodular*
Amyloid, Nodular-2*
Angioleiomyoma, Cutaneous*
Angiolipoma*
Angiolipoma-2*
Angiosarcoma, Cutaneous*
Angiosarcoma, Cutaneous-2*
Arterio-Venous Malformation
Atypical Fibroxanthoma-1*
Atypical Fibroxanthoma-2*
Atypical Fibroxanthoma-3*
Atypical Fibroxanthoma, with Granular Cell Features
Calcinosis Cutis*
Calcinosis Cutis-2*
Collagenoma
Colloid Milium
Colloid Milium-2
Dermatofibroma*
Dermatofibroma-2*
Dermatofibroma with Basaloid Follicular Induction*
Dermatofibroma with True Basal Cell Carcinoma
Dermatofibroma, Cellular
Dermatofibroma, With Early Sclerosing Hemangioma
Dermatofibroma, With Early Sclerosing Hemangioma-2
Dermatofibroma, Xanthomatous
Dermatofibrosarcoma Protuberans*
Dermatofibrosarcoma Protuberans-2*
Dermatomyofibroma
Digital Fibrokeratoma*
Digital Myxoid Cyst/Ganglion Cyst*
Digital Myxoid Cyst/Ganglion Cyst-2*
Epithelioid Cell Histiocytoma
Fibrous Papule*
Fibrous Papule-2*
Focal Cutaneous Mucinosis*
Focal Cutaneous Mucinosis-2*
Giant Cell Epulis*
Giant Cell Tumor of Tendon Sheath*
Giant Cell Tumor of Tendon Sheath-2*
Glomangioma
Glomangioma-2
Glomus Tumor*
Glomus Tumor-2*
Granular Cell Tumor*
Granular Cell Tumor-2*
Granular Cell Tumor-3*
Granulation Tissue*
Hemangioma
Hemangioma, Cirsoid
Hemangioma, Hobnail
Hemangioma, Sclerosing*
Hemangioma, Sclerosing-2*
Hibernoma*
Intravascular Papillary Endothelial Hyperplasia (Masson's Tumor)*
Juvenile Xanthogranuloma*
Juvenile Xanthogranuloma-2*
Juvenile Xanthogranuloma-3*
Juvenile Xanthogranuloma-4*
Kaposi's Sarcoma*
Kaposi's Sarcoma-2*
Kaposi's Sarcoma-Tumor Stage*
Keloid*
Leiomyoma, Cutaneous*
Leiomyoma, Cutaneous-2*
Leiomyosarcoma, Cutaneous
Lipoma, Adenolipoma
Lipoma with Fat Necrosis
Liposarcoma, Myxoid*
Lymphangioma*
Lymphangioma-2*
Malignant Giant Cell Tumor of Skin
Mucocele*
Mucocele-2*
Mucocele-3*
Neurofibroma*
Neurofibroma-2*
Neurofibroma, Plexiform
Neuroma, Amputation*
Palisaded and Encapsulated Neuroma*
Palisaded and Encapsulated Neuroma-2*
Neurothekeoma, Cellular
Nevus Lipomatosis
Nevus Lipomatosis-2
Nevus Lipomatosis-3
Nodular Fasciitis*
Organizing Thrombus
Osteoma Cutis*
Osteoma Cutis-2*
Osteoma Cutis-3*
Osteoma Cutis-4*
Pyogenic Granuloma*
Pyogenic Granuloma, Intravascular
Pyogenic Granuloma, Intravascular-2
Pyogenic Granuloma, Intravascular-3
Scar (Cicatrix), Hypertrophic*
Scar (Cicatrix), Hypertrophic-2*
Scar and Suture Granuloma*
Schwannoma, Cutaneous (Neurilemmoma)*
Schwannoma, Cutaneous-2 (Neurilemmoma)*
Schwannoma, Cutaneous-3(Neurilemmoma)*
Schwannoma, Cutaneous-4 (Neurilemmoma)*
Sclerotic Fibroma
Scrotal Calcinosis
Solitary Fibrous Tumor, Cutaneous
Submucosal Fibroma of the Oral Cavity
Tumoral Calcinosis
Tumoral Calcinosis-2
Xanthelasma*
Xanthelasma-2*
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