1．NORMAL SQUAMOUS EPITHELIUM AND CELLS 1
2．NON-EPITHELIAL CELLS AND OTHERS 11
3．BACTERIA AND BACTERIAL INFECTIONS 29
4．FUNGUS(CONTAMINATION AND INFECTIONS)AND FUNGOID ORGANISMS 41
5．VIRAL INFECTIONS AND ASSOCIATED CYTOPATHIC CHANGES 57
6．PARASITIC INFESTATIONS AND OTHER INFLAMMATORY CONDITIONS 85
7．TISSUE REPAIR 101
8．RESERVE CELL HYPERPLASIA AND METAPLASIA 123
9．ATYPICAL RESERVE CELLS AND SMALL CELL CARCINOMA 145
10．HISTOPATHOLOGIC BASIS OF SQUAMOUS EPITHELIUM IN DYSPLASIA AND CARCINOMA 180
11．METAPLASIA AND METAPLASTIC CELLS WITH ABNORMAL CHANGES 221
12．NON-KERATINIZING SQUAMOUS CARCINOMA 257
13．KERATINIZING SQUAMOUS CELL ORIGINS 279
14．NORMAL COLUMNAR CELLS 307
15．BENIGN CHANGES OF COLUMNAR CELLS 329
16．MALIGNANT CHANGES OF COLUMNAR CELLS 371
17．RADIATION CHANGES 423
18．LOOK-ALIKES AND DIFFERENTIAL DIAGNOSES 441