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For tumors diagnosed prior to 2007:

1. 8140/3, Adenocarcinoma. Mucinous has a specific rule (see sinq 20010075): Include the mucinous component only if it is 50% or more of the tumor. "Focal" is not a majority term.

2. 8250/3, Bronchiolo-alveolar adenoca. Code the more specific histology.

3. 8523/3, Infiltrating duct mixed with other types of carcinoma. Combination of infiltrating duct and another type of carcinoma.

4. 8523/3, Infiltrating duct mixed with other types of carcinoma. Combination of infiltrating duct and another type of carcinoma.

For tumors diagnosed 2007 or later, refer to the MP/H rules. If there are still questions about how this type of tumor should be coded, submit a new question to SINQ and include the difficulties you are encountering in applying the MP/H rules.

This answer was provided in the context of CSv1 coding guidelines. The response may not be used after your registry database has been converted to CSv2.For cases diagnosed 2004 and forward:

Presence or absence of perineural invasion does not affect pathologic extension. Most likely perineural invasion is still localized. It means that there is tumor found along the track of the nerves in the prostate. Where the nerves enter the prostate, the capsule is thinner than in other areas; thus pathologists make note of the potential for extracapsular extension.

The CAP Cancer Protocol for Prostate states that perineural invasion "has been associated with a high risk of extraprostatic extension...although the exact prognostic significance remains to be determined."

Based on the available information, code the case example to 023 [Involves both lobes].

For cases diagnosed 1998-2003: For a stomach primary, code extension to 70 [Abdominal wall]. Sister Mary Joseph's nodule is a cutaneous umbilical metastasis most commonly from an intra-abdominal primary.

This rare form of cutaneous umbilical metastasis results from spread of tumor within the falciform ligament. The umbilicus is part of the abdominal wall.

For cases diagnosed 1998-2003:

Assign extension code 65 for contiguous (direct) extension of tumor from the cervix to the pelvic wall. Assign extension code 85 only if the pelvic wall is involved with discontinuous extension from the cervix; i.e., the cervical tumor spread indirectly (through lymph or vascular channels) to the pelvic wall. Code the pelvic wall involvement in the Extension field and the periaortic lymph node involvement in the Lymph Node field. When the computer does the algorithm, it will look at the periaortic lymph nodes and report the summary stage as distant and the TNM stage group as IV because periarotic nodes are M1. Do not code the periaortic lymph nodes in both fields. This is stage IV, distant disease, due to the periaortic lymph node involvement (EOD lymph nodes code 6).

For tumors diagnosed prior to 2007:

Code the site to C76.3 [Pelvis, NOS]. Code the histology to 8010/34 [Carcinoma, NOS, high grade].

Unless there is better information available regarding the site, assign C76.3. The information provided above does not indicate the exact site of the mass.

Code the histology based on the consensus opinion stated above.

For tumors diagnosed 2007 or later, refer to the MP/H rules. If there are still questions about how this type of tumor should be coded, submit a new question to SINQ and include the difficulties you are encountering in applying the MP/H rules.

Code the primary site as C03.1, lower gum.

According to the system used by the American Dental Association, tooth #18 and tooth #19 are lower. Teeth #1-16 are upper. Teeth #17-32 are lower.