Clinical T
This input is used for staging
Notes
**Note 1:** Assign 88 for in situ cases (behavior code /2). TNM does not include an in situ category for orbit sarcoma tumors. **Note 2:** The orbital tissues are the support systems of the globe, confined to the space within the surrounding bony structure. The orbital tissues include * Fat, striated and smooth muscle, and fibroconnective, vascular, lymphoid, peripheral nerve, and optic nerve tissue **Note 3:** Tis may be used only for *non-sarcoma* histologies coded to this site. * Sarcomas do not present as in situ or noninvasive tumorsNAACCR Item
NAACCR #940| Clinical T | Clinical T Display | Description | Registrar Notes |
|---|---|---|---|
| cX | cTX | Primary tumor cannot be assessed | Clinical classification criteria met, evaluation done: Physician unable to assess T Extension cannot be determined Tumor size (TS) unknown for T categories where TS needed to determine T Physician assigns cTX, no other information available to determine T |
| c0 | cT0 | No evidence of primary tumor | |
| c1 | cT1 | Tumor 15 mm or less in greatest dimension | Confined to orbit Localized, NOS Stated as T1 |
| c2 | cT2 | Tumor more than 15 mm in greatest dimension WITHOUT invasion of globe or bony wall |
Stated as T2 |
| c3 | cT3 | Tumor of any size WITH invasion of orbital tissues and/or bony walls |
Stated as T3 |
| c4 | cT4 | Tumor invades: Globe or periorbital structure, such as Eyelids Temporal fossa Nasal cavity Paranasal sinuses Central nervous system (CNS) |
Cranium Further contiguous extension Stated as T4 |
| 88 | 88 | Not applicable | Primary site/histology not TNM defined In situ case but no pTis is defined by TNM Death certificate only (DCO) case |
| <BLANK> | BLANK | See Registrar Notes | Clinical classification criteria not met Clinical classification criteria met, evaluation done: No information about diagnostic workup Results not documented in record Clinical evaluation of primary tumor not done or unknown if done Tumor first detected on surgical resection (no clinical workup) Evidence of metastatic disease [(cM1) or (pM1)], no other workup Only Clinical Stage Group documented (no T, N, or M information available) |