Table 4.
Frequency of LOH in specimens of esophagectomy
| Pathological diagnosis | USL lesions | LOH in USL (%) | EC (%) | LOH in both EC and USL (%*) | ||||
|---|---|---|---|---|---|---|---|---|
| Normal* (%) | ES (%) | BCH (%) | mD+MD (%) | SD (%) | ||||
| RPL14 | 2/15/26 (13) | 0/2/8 (0) | 0/2/8 (0) | 4/12/19 (33) | 3/4/8 (75) | 8/22/36 (36) | 11/22/36 (50) | 6/22/36 (55) |
| D321768 | 5/23/26 (22) | 2/6/8 (33) | 0/6/8 (0) | 6/15/19 (28) | 5/5/8 (100) | 14/29/36 (48) | 21/29/36 (72) | 12/29/36 (57) |
| D3S3040 | 7/20/26 (35) | 3/5/8 (60) | 0/6/8 (0) | 3/16/19 (18.8) | 5/7/8 (71) | 13/29/36 (46) | 20/29/36 (69) | 11/29/36 (55) |
| D3S4542 | 6/22/26 (27) | 2/4/8 (50) | 0/6/8 (0) | 5/14/19 (38) | 5/6/8 (83) | 14/28/36 (50) | 19/28/36 (67) | 9/28/36 (47) |
| D3S3644 | 3/15/26 (20) | 0/3/8 (0) | 0/3/8 (0) | 3/12/19 (25) | 3/4/8 (75) | 8/21/36 (40) | 16/21/36 (76) | 7/21/36 (44) |
| D9S169 | 2/22/26 (9) | 0/4/8 (0) | 0/6/8 (0) | 2/14/19 (14.3) | 1/6/8 (17) | 5/28/36 (18) | 19/28/36 (68) | 4/28/36 (21) |
| D13S171 | 1/12/26 (8.3) | 1/4/8 (25) | 0/5/8 (0) | 2/14/19 (14.3) | 1/5/8 (20) | 5/21/36 (24) | 13/21/36 (62) | 3/21/36 (23) |
| D13S263 | 2/18/26 (11) | 1/6/8 (17) | 1/7/8 (14) | 3/13/19 (23) | 2/5/8 (40) | 7/25/36 (28) | 12/25/36 (48) | 5/25/36 (38) |
| Total | 28/147 (19) | 9/34 (26) | 1/41 (2.4) | 28/110 (25) | 24/42 (57) | 130/203 (64) | ||
Normal* histopathologically normal esophageal mucosa unstained by iodine, ES esophagitis, BCH basal cell hyperplasia, mD mild dysplasia, MD moderate dysplasia, SD severe dysplasia, EC esophageal cancer, %* = number of case of LOH in both tumor and usl/number of case of LOH in the tumor, USL unstained of logul’s iodine