Summary Stage 2018: Middle Ear
Summary Stage 2018
Notes
**Middle Ear** 8000-8700 C301 C301 Middle ear **Note 1:** The following sources were used in the development of this chapter * SEER Extent of Disease 1988: Codes and Coding Instructions (3rd Edition, 1998) (https://seer.cancer.gov/archive/manuals/EOD10Dig.3rd.pdf) * SEER Summary Staging Manual-2000: Codes and Coding Instructions (https://seer.cancer.gov/tools/ssm/ssm2000/) * Collaborative Stage Data Collection System, version 02.05: https://cancerstaging.org/cstage/Pages/default.aspx **Note 2:** See the following chapters for the listed histologies * 8710-8714, 8800-8934, 8940-9138, 9141-9582: *Soft Tissue* * 8720-8790: *Melanoma Head and Neck* * 8935-8936: *GIST* * 9140: *Kaposi Sarcoma* * 9700-9701: *Mycosis Fungoides* **Note 3:** Summary Stage is the only applicable staging system for this site/histology/schema.NAACCR Item
NAACCR #764| SS2018 | Description |
|---|---|
| 0 | In situ: noninvasive, intraepithelial |
| 1 | Localized only (localized, NOS) - Confined to + Auditory bone(s) (incus, malleus, stapes) + Vestibulocochlear organ * Cochlea * Semicircular ducts (ampullae, saccule, utricle) * Septum * Tympanic membrane (ear drum) |
| 2 | Regional by direct extension only - Adjacent connective tissue + Auditory tube (Eustachian tube, pharyngotympanic tube) + Nerve(s) - Adjacent organ(s)/structure(s) + External auditory meatus (ear canal) + Internal carotid artery + Mastoid antrum + Nasopharynx + Temporal bone |
| 3 | Regional lymph node(s) involved only - Level I + Level IA - Submental + Level IB - Submandibular (submaxillary), sublingual - Level II - Upper jugular + Jugulodigastric (subdigastric) + Upper deep cervical + Level IIA - Anterior + Level IIB - Posterior - Level III - Middle jugular + Middle deep cervical - Level IV - Lower jugular + Jugulo-omohyoid (supraomohyoid) + Lower deep cervical + Virchow node - Level V - Posterior triangle group + Posterior cervical + Level VA - Spinal accessory + Level VB - Transverse cervical, supraclavicular - Level VI - Anterior compartment group + Laterotracheal + Paralaryngeal + Paratracheal - above suprasternal notch + Perithyroidal + Precricoid (Delphian) + Prelaryngeal + Pretracheal - above suprasternal notch + Recurrent laryngeal - Level VII - Superior mediastinal group (for other mediastinal node(s) see code 7) + Esophageal groove + Paratracheal - below suprasternal notch + Pretracheal - below suprasternal notch - Other groups + Cervical, NOS + Deep cervical, NOS + Facial * Buccinator (buccal) * Mandibular * Nasolabial + Internal jugular, NOS + Parapharyngeal + Parotid * Infraauricular * Intraparotid * Periparotid * Preauricular + Retroauricular (mastoid) + Retropharyngeal + Suboccipital - Regional lymph node(s), NOS + Lymph node(s), NOS |
| 4 | Regional by BOTH direct extension AND regional lymph node(s) involved - Codes (2) + (3) |
| 7 | Distant site(s)/lymph node(s) involved - Distant site(s) (including further contiguous extension) + Meninges - Distant lymph node(s), NOS + Mediastinal (excluding superior mediastinal node(s)) - Distant metastasis, NOS + Carcinomatosis + Distant metastasis WITH or WITHOUT distant lymph node(s) |
| 9 | Unknown if extension or metastasis |