EOD-Extension--Lung: Are "aortico-pulmonary window", "paratracheal space", and "subcarina" coded in the EOD extension field or in the EOD lymph node involvement field? See discussion.
Would a lung tumor that extends into the AP window be synonymous with extension into the mediastinum? If so, would this also apply to extension to subcarina, paratracheal space, and other such terms corresponding to areas listed in the mediastinal lymph node field under code 2?
For cases diagnosed between 1998-2003:
Extension into the aortico-pulmonary window, would be coded in the EOD-Extension field as 70 [mediastinal extension]. If the tumor extends into the paratracheal space, subcarina, or other areas listed under the code 2 in lymph nodes, code the EOD-Extension field to 70 to capture this type of involvement.
EOD-Extension--Liver: Can we use CT scan descriptions such as "portal vein thrombosis" or "extensive infiltration of the liver" or "diffuse infiltration of the liver" to code extension for liver primaries? See discussion.
1. Would you code portal vein involvement for a CT scan description of "portal vein thrombosis"?
2. Would you code more than one lobe of the liver as involved for CT scan descriptions of "extensive infiltration of the liver" or "diffuse infiltration of the liver"?
For cases diagnosed 1998-2003:
1. No. Thrombosis can be caused by non-cancerous conditions.
2. Yes. Code the EOD-Extension field to 65 [Multiple (satellite) nodules in more than one lobe of the liver] when "extensive infiltration" or "diffuse infiltration" is stated.
EOD-Extension--Kidney: If a "tumor thrombus" in a renal vein is discontinuous from the primary tumor in the kidney, is it still coded to 60 [Tumor thrombus in a renal vein, NOS], rather than 85 [Metastasis]?
For cases diagnosed 1998-2003:
Code the EOD-Extension field to 60 [Tumor thrombus in a renal vein, NOS]. A thrombus can be a bolus of tumor cells within a large vein that may or may not still be connected/contiguous with the primary tumor. However, both a discontinuous and contiguous thrombus are coded to 60.
EOD-Extension--Kidney: How would this field be coded when the pathology report shows a 20 mm surface neoplasm with smaller yellow metastatic implants on the surface of the kidney?"
For cases diagnosed 1998-2003: Code extension as 10 [Invasive cancer confined to kidney cortex]. Tumor involves the cortical surface of the kidney with separate surface lesions, but does not extend beyond cortex.
EOD-Extension--Hematopoietic, NOS: If a solitary plasmacytoma originates in the right tonsil and extends to the left tonsil, vallecula and hypopharynx, is extension still coded to 10 [localized disease, solitary plasmacytoma only]?
For cases diagnosed 1998-2003:
Code the EOD-Extension field to 10 [localized disease, solitary plasmacytoma only] for all cases of solitary plasmacytoma.
EOD-Extension--Head & Neck: Is this field coded 10 [Invasive tumor confined to one of the following subsites: interior wall, one lateral wall, posterior wall] or 30 [Localized, NOS] for tonsillar primary when there is no mention of involvement of surrounding structures? See Description.
Site is stated to be "left tonsil" and was coded to site C099. "The lesion is admixed in tonsillar tissue." No surrounding structures are stated to be involved. Is it logical to assume that since code C099 includes the palantine tonsils and the palatine tonsils are on the lateral wall and since no other areas are stated to be involved that extension code 10 [confined to one lateral wall] would be more appropriate than code 30 [localized NOS]?
For cases diagnosed 1998-2003: Code EOD-extension for the case example to 10 [Invasive tumor confined to one of the following subsites: anterior wall, one lateral wall, posterior wall]. The tonsil lies in a pocket on the wall (tonsillar fossa), so you know it is confined to the wall.
EOD-Extension--Head & Neck: In the absence of a clear surgical or pathologic description of how the salivary gland involvement relates to the head and neck primary, do we code the involvement as direct extension, further extension or metastasis? See discussion.
A composite resection of tonsillar mass and a modified radical neck dissection is performed. According to the pathology report: Squamous cell carcinoma involvement of tonsil with invasion of skeletal muscle. A separate specimen labeled "tumor" indicates a salivary gland is also involved with tumor. Neck dissection: 1 lymph node with metastasis.
For cases diagnosed 1998-2003:
In the absence of a clear statement that the gland was involved by direct extension, code the EOD-Extension field to 85 [Metastasis]. In this case, the salivary gland tumor was described as a "separate specimen" that contained the salivary gland. The extension does not appear to be contiguous for this case.
If the salivary gland involvement had been by direct extension, which would be assumed if there had been contiguous involvement of the gland with the primary site, then code the EOD-Extension field to 80 [Further extension]. If there had been direct extension, the surgeon probably would not have dissected through the tumor. The resection specimens would have been contiguous.
EOD-Extension--Head & Neck: If there is no mention of vocal cord mobility, do we code indicating normal vocal cord mobility or do we code EOD-Extension to a "localized, NOS?" See discussion.
How do we code EOD-extension for the following tumor of the supraglottic larynx? Limited stage small cell cancer of epiglottis per discharge signout. Physical exam revealed swelling of anterior aspect of epiglottis and narrowing of epiglottis. Neck without palpable masses. Laryngoscopy with biopsy and esophagoscopy showed extensive tumor involving entire laryngeal surface of epiglottis, extending onto aryepiglottic fold, onto false vocal cords and onto left true vocal cord. Ventricle on left side was obliterated with tumor. Right true vocal cord free of tumor. There is no information regarding vocal cord mobility. Biopsy of the left true vocal cord was negative. Should EOD-extension be coded to 20 [Tumor involves more than one subsite of supraglottis without fixation or NOS] or 50 [Localized NOS]?
For cases diagnosed 1998-2003, if vocal cord mobility is not mentioned, code as normal mobility. Code EOD-extension for the example case as 20 [Tumor involves more than one subsite of supraglottis without fixation or NOS].
EOD-Extension--Head & Neck: How much information is needed for a head and neck primary in order to code extension to localized versus unknown? What code is used to represent this field when the only information for a buccal cavity primary is a positive aspiration of the buccal mass?
For cases diagnosed 1998-2003:
Code the EOD-Extension to 99 [Unknown] for this case until more information is received. The available information does not describe the primary site and there is a complete lack of staging information.
Head and neck cancers spread early and often to nodes. Do not code the EOD-Extension to localized when the information is as limited as it is for this example.
EOD-Extension--Head & Neck: How do you code extension for a supraglottic larynx primary with "pre-epigolottic space" invasion?
For cases diagnosed 1998-2003:
Code the EOD-Extension field to 65 [Pre-epiglottic tissues]. Extension to "pre-epiglottic space" is equivalent to extension to "pre-epiglottic tissue."
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