1. Epithelial tumors

 A. Keratoacanthoma
 B. Dyskeratosis
  (1) Epithelial plaques-leukoplakia, hereditary benign intraepithelial    dyskeratosis
  (2) Intraepithelial epithelioma (Bowen disease) (61N)
 C. Metastatic uveal melanoma
 *D. Papilloma-including virus types 11, 16, and 18
 E. Epithelioma
 F. Adenoma
  (1) Papillary cystadenoma lymphomatosum (Warthin tumor)
  (2) Oncocytoma (oxyphil-cell adenoma)
  (3) Pleomorphic adenoma of Krause glands

2. Mesoblastic tumors

 A. Inflammatory hyperplasias
  (1) Granuloma
  (2) Plasmoma
 B. Connective tissue tumors
  (1) Fibroma
  (2) Lipoma
  (3) Myxoma

3. The reticuloses

 *A. Lymphoma
 B. Lymphosarcoma
 *C. Mycosis fungoides

4. Vascular tumors-angiomas

 A. Polymorphous hemangioma, telangiectatic granuloma, granuloma pyogenicum
 B. Lymphangioma
 C. Angiosarcoma monomorphous angioma, Kaposi (hemorrhagic) sarcoma

5. Pigmented tumors

 *A. Nevus
 B. Malignant melanoma
 C. Intraepithelial melanoma-precancerous melanosis

6. Peripheral nerve tumors

 A. Neurofibroma
  *(1) Neurilemmoma (neurinoma, schwannoma)
  (2) Malignant schwannoma (neurogenic sarcoma; neurofibrosarcoma)
  (3) Plexiform neurofibromatosis
 B. Tuberous sclerosis (Bourneville disease)
 *C. Intrascleral nerve loops

7. Amyloidosis
8. Metastatic renal cell carcinoma
9. Trematode-induced granulomas
10. Hypertrophic discoid lupus erythematosus

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