Dermatopathology: Learn how to diagnose skin diseases

Dermatopathology: Learn how to diagnose skin diseasesDermatopathology: Learn how to diagnose skin diseasesDermatopathology: Learn how to diagnose skin diseases

cutaneous metastasEs, Paget disease and leukemia cutis

neoplasms with hair follicle differentiation

trichoadenoma, trichilemmoma, trichoblastoma, pilomatricoma

granulomatous, necrobiotic and perforating dermatoses

Sarcoidosis, Leprosy, Granuloma Annulare, Acne Rosacea

Cheilitis Granulomatosa, Chalazion, Actinic Granuloma, Necrobiosis Lipoidica

neutrophilic and eosinophilic infiltrates

Psoriasiform dermatitis

vascular anomalies: classification update

Histopathology, IHC markers, molecular pathology

cutaneous cysts

cutaneous cysts and related conditions

melanoma IHC

immunostaining for difficult melanocytic tumors

malignant melanoma

malignant melanocytic tumors

melanocytomas

BAP1-inactivated melanocytoma, wnt-activated melanocytoma

melanocytic nevi

benign melanocytic tumors

WHO classification of nevi, Features of benign nevus, Melanotic macule, Lentiginous compound nevus, Nevus of special site, Dysplastic nevus, Spitz nevus, Giant congenital nevus, Cellular blue nevus

vascular anomalies

updated May 5, 2025

tumors of fat, muscle, bone and cartilage

fungal infections

disorders of collagen and elastic tissue

Inflammatory diseases of subcutaneous fat

vasculitis and related disorders

Idiopathic connective tissue diseases

vesiculobullous reactions

The spongiotic reaction pattern

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