Mucoepidermoid carcinoma staging
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Maria Fernanda Villarreal, M.D. [2]
Overview
According to the American Joint Committee on Cancer (AJCC) 7th edition, there are 6 stages of mucoepidermoid carcinoma based on the tumor size and node invasion. Each stage is assigned a letter and a number that designate the tumoral size and node invasion.[1]
Staging
AJCC 7th Edition
Tumor
- T1 - 2cm or less w/o extraparenchymal extension
- T2 - >2cm but not greater than 4cm; and w/o extraparenchymal extension
- T3 - >4cm or with extraparenchymal extension
- T4a - invades skin, mandible, ear canal or facial nerve
- T4b - invades skull base, pterygoid plates or encases carotid
Nodes
- NX - Cannot be assessed
- N0 - No regional lymph nodes metastasis
- N1 - Single ipsilateral lymph node, <= 3cm in greatest dimension
- N2
- N2a - Single ipsilateral lymph node, 3-6 cm in greatest dimension
- N2b - Multiple ipsilateral lymph nodes, <= 6cm in greatest dimension
- N2c - Bilateral or contralateral lymph nodes, <= 6cm in greatest dimension
- N3 - Lymph node(s) >6 cm in greatest dimension
Overall stage
- I - T1 N0
- II - T2 N0
- III - T3 N0-1, or T1-3 N1 (i.e. T3 or N1)
- IVA - T4a N0-2, or T1-4a N2 (i.e. T4a or N2)
- IVB - T4b N0-3, or T1-4b N3 (i.e. T4b or N3)
- IVC - M1
References
- ↑ https://en.wikibooks.org/wiki/Radiation_Oncology/Head_%26_Neck/Salivary_gland Accessed on February 17, 2016