Christine J. Ko & Ronald J. Barr 
Dermatopathology [EPUB ebook] 
Diagnosis by First Impression

Preface, viii
Acknowledgments, ix
About the Companion Website, xi
Introduction, 1
Chapter 1 Shape on Low Power, 23
Epidermis
Regular acanthosis, 25
Lobular proliferation, 29
Reticulated proliferation, 35
Central pore, 42
Epidermal perforation, 46
Dermis
Circular islands, 49
Cords/tubules and comma shapes, 53
Space with a lining, 59
Papillations, 70
Polypoid (dome-shaped), 77
Square/rectangular, 82
Palisading reactions, 88
Pseudoepitheliomatous hyperplasia above abscesses, 95
Pink ball, (see Chapter 6)
Chapter 2 Gestalt: Rash/inflammatory, 99
Epidermal changes
Parakeratosis, 101
Spongiosis, 104
Papulosquamous (psoriasiform), 108
Interface (vacuolar), 114
Interface (lichenoid), 119
Inflammation: Specific patterns and cell type
Epidermal eosinophils, 125
Perivascular, 129
Band-like dermal/papillary dermal infiltrate, 133
Diffuse/nodular, 139
Subcutaneous, 146
Chapter 3 Cell Type, 153
Melanocytic, 155
Spindle cells, 168
Pleomorphic cells, 186
Epithelioid vs spindle vs pleomorphic cells, 187
Endothelial, 188
Giant, 202
Clear, 212
Chapter 4 Top-Down, 229
Arthropods, 231
Hyperkeratosis/parakeratosis, 237
Upper epidermal change, 244
Acantholysis, 254
Subepidermal space/cleft, 264
Granular ‘material’ in cells, 271
‘Busy’ dermis, 276
Dermal material, 279
Fat necrosis, 292
Chapter 5 Color – Blue, 295
Blue tumor, 297
Lymphocytes, 307
Mucin and glands or ducts, 315
Mucin, 319
Chapter 6 Color – Pink, 327
Pink ball of spindle cells, 329
Pink material, 332
Pink dermis, 339
Epidermal necrosis, 341
Chapter 7 Miscellaneous, 347
Alopecia, 349
Immunohistochemistry, 354
Index (Pattern), 361
Index (Histological Category), 366
Index (Alphabetical), 369

Christine J. Ko, MD, is Professor of Dermatology and Pathology at Yale University. She is board certified in both dermatology and dermatopathology. She is the author of several academic texts in dermatology and dermatopathology, including Dermatology Essentials and Dermatology: Visual Recognition and Case??Reviews.
Ronald J. Barr, MD, is Professor Emeritus of Dermatology and Pathology at University of California, Irvine. He??is board certified in anatomical pathology, dermatology, and dermatopathology. He is recognized for his many contributions in dermatopathology, involving both neoplastic and non-neoplastic disorders.