Table 1.
Characteristics of resection specimen with revised margins based on Erasmus MC relocation method
| Case number | Location tumor | Type of surgery | Intraoperative assessment: resection margins | Additional resection margin | Accurate additional resection achieved |
|---|---|---|---|---|---|
| 1 | Tongue | Local excision | Dysplasia (3 mm) | Clear (7 mm) | Yes |
| 2 | Buccal mucosa | “En bloc” resection with segmental mandibular resection | Dysplasia (4 mm) | Clear (6 mm) | Yes |
| 3 | Floor of the mouth | “En bloc” resection with marginal mandibular resection | Dysplasia (4 mm) | Clear (8 mm) | Yes |
| 4 | Tongue | Local excision | Close (<5 mm) | Clear (7 mm) | Yes |
| 5 | Floor of the mouth | “En bloc” resection | Close (2 mm) | Close (3 mm) | Yes |
| 6 | Oropharynx | Local excision | Close (1.5 mm) | Clear (5.5 mm) | Yes |
| 7 | Tongue | Subtotal glossectomy | Close (1.8 mm) | Clear (5.8 mm) | Yes |
| 8 | Floor of the mouth | Local excision | Close (1 mm) | Close (4.7 mm) | Yes |
| 9 | Mandible | “En bloc” resection with segmental mandibular resection | Close (1 mm) | Clear (5.5 mm) | Yes |
| 10 | Floor of the mouth | “En bloc” resection | Close (1 mm) | Clear (5.5 mm) | Yes |
| 11 | Tongue | Local excision | Close (1 mm) | Clear (6 mm) | Yes |
| 12 | Alveolar process | “En bloc” resection with segmental mandibular resection | Close (2 mm) | Positive (<0.1 mm) | Yes |
| 13 | Tongue | Local excision | Close (2 mm) | Clear (6 mm) | Yes |
| 14 | Tongue | Local excision | Close (2 mm) | Clear (6 mm) | Yes |
| 15 | Floor of the mouth | “En bloc” resection with marginal mandibular resection | Close (2 mm) | Clear (7 mm) | Yes |
| 16 | Trigonum retromolare | “En bloc” resection with segmental mandibular resection | Close (2 mm) | Clear (7 mm) | Yes |
| 17 | Alveolar process | “En bloc” resection with segmental mandibular resection | Close (3.1 mm) | Clear (5.1 mm) | Yes |
| 18 | Tongue | “En bloc” resection | Close (3.5 mm) | Clear (9 mm) | Yes |
| 19 | Alveolar process | “En bloc” resection with segmental mandibular resection | Close (3 mm) | Clear (13 mm) | Yes |
| 20 | Floor of the mouth | “En bloc” resection with marginal mandibular resection | Close (3 mm) | Clear (6 mm) | Yes |
| 21 | Alveolar process | “En bloc” resection with segmental mandibular resection | Close (3 mm) | Clear (8 mm) | Yes |
| 22 | Buccal mucosa | Local excision | Close (4 mm) | Positive (0.1 mm) | Yes |
| 23 | Tongue | Local excision | Close (4 mm) | Clear (11 mm) | Yes |
| 24 | Tongue | “En bloc” resection | Close (4 mm) | Clear (6 mm) | Yes |
| 25 | Floor of the mouth | “En bloc” resection | Close (4 mm) | Clear (8 mm) | Yes |
| 26 | Tongue | Hemiglossectomy | Close (4 mm) | Clear (8 mm) | Yes |
| 27 | Tongue | Local excision | Close (4 mm) | Clear (9 mm) | Yes |
| 28 | Buccal mucosa | Local excision | Positive (<0.1 mm) | Close (2.1 mm) | Yes |
| 29 | Base of the tongue | “En bloc” resection | Positive (<1 mm) | Positive (<0.1 mm) | Yes |
| 30 | Tongue | Hemiglossectomy (“en bloc”) | Positive (<1 mm) | Clear (5.6 mm) | Yes |
| 31 | Alveolar process | Partial maxillectomy | Positive (<1 mm) | Clear (13 mm) | Yes |