Adenoid Cystic Basaloid Pattern
Description
Adenoid Cystic Basaloid Pattern, the presence of a basaloid pattern on pathological examination, is a prognostic factor for adenoid cystic carcinoma of the lacrimal gland. Adenoid cystic carcinoma (ICD-O-3 morphology code 8200/3) is the most common malignant epithelial tumor of the lacrimal gland. Adenoid cystic carcinoma is a tumor composed of modified myoepithelial and ductal differentiated cells. A genetic alteration (i.e., fusion oncogene MYB-NFIB) is found in the majority of adenoid cystic carcinomas There are three histologic patterns within the adenoid cystic carcinoma group: cribriform, solid, and tubular.Notes
**Note 1:** **Physician Statement** * Physician statement of basaloid pattern can be used to code this data item when no other information is available. **Note 2:** **Applicable histologies** * This is most commonly found in Adenoid Cystic Carcinoma (8200/3) but can be present in other histologies.| Code | Description |
|---|---|
| 0.0-100.0 | 0.0 to 100.0 percent basaloid pattern |
| XXX.5 | Basaloid pattern present, percentage not stated |
| XXX.8 | Not applicable: Information not collected for this case (If this item is required by your standard setter, use of code XXX.8 will result in an edit error.) |
| XXX.9 | Not documented in medical record Adenoid Cystic Basaloid Pattern not assessed or unknown if assessed |