DATA FORM FOR CANCER STAGING - RETINOBLASTOMA
Form # 785-1-053
| Clin | Path | DEFINITIONS | ||
| PRIMARY TUMOR (T) | ||||
| TX | Primary tumor cannot be assessed | |||
| T0 | No evidence of primary tumor | |||
| T1 | Tumor(s) limited to 25% or less of the retina | |||
| T2 | Tumor(s) involve(s) more than 50% of the retina and/or invade(s) beyond the retina but remain(s) introcular | |||
| T3 | Tumor(s) involve(s) more than 50% of the retina and/or invade(s) beyond the retina but remain(s) introcular | |||
| T3a | Tumor(s) involve(s) more than 50% of the retina and/or tumor cells in the vitreous | |||
| T3b | Tumor(s) involve(s) optic disc | |||
| T3c | Tumor(s) involve(s) anterior chamber and/or uvea | |||
| T4 | Tumor with extraocular invasion | |||
| T4a | Tumor invades retrobulbar optic nerve | |||
| T4b | Extraocular extension other than invasion of optic nerve | |||
| LYMPH NODE (N) | ||||
| NX | Regional lymph nodes cannor be assessed | |||
| N0 | No regional lymph node metastasis | |||
| N1 | Regional lymph node metastasis | |||
| DISTANT METASTASIS (M) | ||||
| MX | Presence of distant metastasis cannot be assessed | |||
| M0 | No distant metastasis | |||
| M1 | Distant Metastasis | |||
| PRIMARY TUMOR (PT) | ||||
| pTX | Primary Tumor cannot be assessed | |||
| pT0 | No evidence of primary tumor | |||
| pT1 | Tumor(s) limited to 25% or less of the retin | |||
| pT2 | Tumor(s) involve(s) more than 25% but not more than 50% of the retina | |||
| pT3 | Tumor(s involve(s) more than 50% of the retina and/or invades byond the retina but remains intraocular | |||
| pT3a | Tumor(s) involve(s) more than 50% of rhe retina and/or tumor cells in the vitreous | |||
| pT3b | Tumor invades optic nerve as far as the lamina cribrosa | |||
| pT3c | Tumor in anterior chamber and/or invasion with thickening of the uvea and/or intrascleral invasion | |||
| pT4 | Tumor with extraocular invasion | |||
| pT4a | Intraneural tumor beyond the lamina cribrosa but not at the line of resection | |||
| pT4b | Tumor at the line of resection or other extraocular extension | |||
| LYMPH NODE (PN) | ||||
| pNX | Regional lymph nodes cannot be assessed | |||
| pN0 | No regional lymph node metastasis | |||
| pN1 | Regional lymph node metastasis | |||
| DISTANT METASTASIS (PM) | ||||
| pMX | Presence of distant metastasis cannot be assessed | |||
| pM0 | No distant mestastasis | |||
| pM1 | Distant Mestastasis | |||
| CLIN | PATH | STAGE GROUPING | |||
| IA | T1 | N0 | M0 | ||
| IB | T2 | N0 | M0 | ||
| IIA | T3a | N0 | M0 | ||
| IIB | T3b | N0 | M0 | ||
| IIC | T3c | N0 | M0 | ||
| IIIA | T4a | N0 | M0 | ||
| IIIB | T4b | N0 | M0 | ||
| IV | Any T | N1 | M0 | ||
| Any T | Any N | M1 | |||
THE FINAL STAGE GROUPING (CLINICAL & PATHOLOGICAL) IS THE RESPONSIBILITY OF THE ATTENDING PHYSICIAN.
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