EOD Primary Tumor
This input is used for staging
Notes
**Note 1:** The lacrimal sac is the upper dilated end of the nasolacrimal duct, lodged in a deep groove formed by the lacrimal bone and frontal process of the maxilla. The sac connects the lacrimal canaliculi, which drain tears from the eye's surface, and the nasolacrimal duct, which conveys this fluid into the nasal cavity. The most common epithelial tumors of the lacrimal sac are squamous cell and transitional cell carcinomas. **Note 2:** Periosteum is a fibrous membrane that wraps the outer surface of bones.Default
999NAACCR Item
NAACCR #772Code | Description | SS2018 T |
---|---|---|
000 | In situ: Noninvasive; intraepithelial | IS |
100 | Confined to lacrimal sac Localized, NOS | L |
200 | Adjacent bone Globe (eyeball) Optic nerve Orbital soft tissues Periosteum | RE |
700 | Adjacent structures, NOS Brain Pterygoid fossa Sinus Temporal fossa Further contiguous extension | D |
800 | No evidence of primary tumor | U |
999 | Unknown; extension not stated Primary tumor cannot be assessed Not documented in medical record Death Certificate Only | U |