1. Malignant epithelial tumors 冯家强，梁裕团，潘立敏，邱铭晖

2. 1.Squamous cell carcinoma Ⅰ级（高分化）： Ⅱ级（中度分化）： Ⅲ级（低度分化）：

3.  Origin: squamous cell  (1). skin, nonnasality, lip, cervix, vagina, esophagus, larynx,penis,etc.skinnonnasalitycervix, esophagus, penis  (2).bronchia, gallbladder, renal pelvis,etc.  Morphology: grossly: cauliflower-like, polyp, mushroom-like, ulceration.

5.  口腔鳞癌早期多表现为非均质性白斑、红斑， 浅的糜烂和溃疡。

9. 2. Basal cell carcinoma Origin: basal cells of skinbasal cells of skin Features: locally invasive growth, almost never metastasis commonly in face of ololster.

11. 3. Transitional cell carcinoma  Origin: transitional cells of the urinary bladder or renal pelvis. Features: exoteric, finger-like, commonly in bladder, renal pelvis.

13. calyx of the upper pole with transitional cell carcinoma renal transitional carcinoma transitional cell carcinoma of the urinary bladder renal transitional carcinoma

14. 4. Adenocarcinoma  (1). Typical adenocarcinoma gastrointestinal 、 gallbladder 、 womb

15. Adenocarcinoma of kidney Adenocarcinoma of colon adenocarcinoma_of_colon biliary carcinoma. endometrial carcinoma

16. Metastatic Prostatic Adenocarcinoma jejunal adenocacinoma Liver_cancer_adenocarcinoma adenocarcinoma of the prostate gland

17. （ 2 ） Mucoid carcinoma or colloid Signet-ring cell and carcinoma mucin  gastrointestinal

18. colloid carcinoma of breast COLLOID or MUCOID CARCINOMA

19. colloid carcinoma of breast colloid carcinoma of thyroid Prostatic AdenoCA Signet-Ring cell stomach signet-ring

20. （ 3 ） Solid carcinoma or carcinoma simplex Poor differentiation adenoma carcinoma, and the tumor cells arrange in solid columns, or masses.

21. solid carcinoma of breast

22. breast solid carmedullary carcinoma of thyroid medullary carcinoma