Report | Question ID | Question | Discussion | Answer | Year |
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20041063 | Primary Site/Histology (Pre-2007)--Mediastinum: How do we code these fields for a case described as a "neuroendocrine carcinoma" of the "anterior mediastinum" without failing the SEER "impossible" site/histology combination edit? See Discussion. | Two different facilities state that the patient has "neuroendocrine carcinoma of the anterior mediastinum." This coded combination failed SEER edit (SEERIF38). We can not correct it because that edit flag does not appear on our system. Both facilities indicate that the mediastinum is the primary. In addition, there is text to support both the histology and primary site codes. | For tumors diagnosed prior to 2007:
The combination of C381 [anterior mediastinum] and 8246 [neuroendocrine carcinoma] will be removed from the list of "impossible" site/histology combinations. There are rare cases of neuroendocrine carcinoma of the anterior mediastinum. As illustrated in the discussion, verify that the primary site is anterior mediastinum, the histology is neuroendocrine ca, and document those findings in the text.
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. |
2004 |
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20041086 | Histology (Pre-2007)/CS Tumor Size/CS Extension--Colon: How are these fields coded if a 3 cm sessile polyp is snared and removed piecemeal during a colonoscopy and the path microscopic description indicates a polypoid lesion with foci of malignant transformation found associated with bundles of smooth muscles followed by a LAR with no residual invasive tumor but the final path diagnosis is stated to be a M.D. adenocarcinoma? See Discussion. | 3/04 colonoscopy 3cm sessile polyp snared & removed piecemeal. Path Micro: Polypoid lesion consists of branching & complex neoplastic glands lined by tall columnar epithelial...These foci of malignant transformation are assoicated with large polygonal epithelial...associated with desmoplastic stromal reaction & neoplastic glands can be found associated with bundles of smooth muscle. 4/04 LAR: focus of residual HG dysplasia: no residual invasive tumor. Final path dx: MD adenocarcinoma. Physician staged: T2 N0 M0. Histology: 8140 vs 8210 Tumor Size: 030 vs 999 vs 990 Extension: 12 vs 20 |
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 tumors diagnosed prior to 2007:
Based only on information provided: Histology: 8210 [Adenocarcinoma in a polyp] Tumor Size: 999 [Unknown] CS Extension: 20 [Muscularis propria invaded]
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. |
2004 |
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20041043 | First Course Cancer-Directed Treatment--Bladder: How should Mitomycin-C instillation for bladder cancer be coded? | Code the instillation of Mitomycin-C into the bladder for a bladder primary in both the Chemotherapy and Surgery to Primary Site fields. Code the Chemotherapy field to 02 [Single-agent chemotherapy administered as first course therapy]. Mitomycin-C is listed in SEER book 8 as a chemotherapeutic drug, specifically an alkylating agent.
Also, code the Surgery of Primary Site field to 15 [intravesical therapy]. Code the surgical procedure as well as the type of drug (chemotherapy in this case). |
2004 | |
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20041074 | Histology (Pre-2007)--Colon: Is the histology coded as adenocarcinoma arising in a polyp when the final diagnosis on the pathology report is adenocarcinoma but the colonoscopy report associated with the path states that the surgeon performed a polypectomy? See Discussion. | Histology: 3/04 Colonoscopy with polypectomy of a sessile appearing polyp. Path report: Final Dx: Adenocarcinoma; Micro: Adenocarcinoma apparently arising from the mucosa...noted to invade the muscularis mucosa into the submucosa. | For tumors diagnosed prior to 2007
Code this case to adenocarcinoma [8140]. The best source for histology is the final diagnosis on the path report from the procedure that removed the most tumor tissue. When there is a conflict, the path diagnosis has higher priority than the colonoscopy diagnosis for coding histology.
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. |
2004 |
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20041076 | CS Extension--Colon: What is the difference between codes 46 [Adherent to other organs or structures, but no microscopic tumor found in adhesion(s)] and 57 [Adherent to other organs or structures, NOS]? See Discussion. | Code 46 reads "Adherent to other organs or sturcture, but no microscopic tumor found in adhesion(s)". Would these examples be coded to 46? Example 1: 7/04 Op findings: mass was adherent to duodenum without obvious invasion. Path: margins negative (no mention of duodenum). Case staged to pT3. Example 2: Op findings: large mass involving cecum adherent to peritoneum & retroperitoneum. Path: invasion of pericolic soft tissue; margins negative (no metion of peritoneum & retroperitoneum). Case staged to pT3. |
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. Code 46: Attached to other organ (on imaging or surgical observation); pathology says no invasion of the other organ. Code 57: Attached to other organ; pathology is positive for invasion of other organ, or pathology does not specify whether there is invasion of the other organ. Example 1: Code extension to 46 [Adherent to other organs or sturcture, but no microscopic tumor found in adhesion(s)]. The tumor was attached to the duodenum, but not invading Example 2: Code extension to 46 [Adherent to other organs or structure, but no microscopic tumor found in adhesion(s)]. The tumor was attached to peritoneum & retroperitoneum, but not invading based on negative margins and no peritoneum or retroperitoneum specimen submitted to pathologist. |
2004 |
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20041009 | Diagnostic Confirmation--Lymphoma: Can lymphoma be diagnosed clinically? See Description. | Example 1: Patient with B symptoms. Physical exam reveals large neck mass. Physician impression is lymphoma. Example 2: CT scans show lymphadenopathy consistent with lymphoma. In both cases, patient does not return for biopsies. |
Yes, lymphoma can be accessioned based on a clinical diagnosis. Code Diagnostic Confirmation in Example 1 as 8 [Clinical diagnosis only]. Code Diagnostic Confirmation in Example 2 as 7 [Radiography and other imaging techniques without microscopic confirmation]. |
2004 |
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20041031 | CS Extension--Bladder: How should this field be coded when the pathology states "papillary transitional cell carcinoma with no invasion into the submucosa or deep muscularis" but there is "focal extension of tumor into bladder diverticula"? | 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. Code the CS Extension field to 01 [Papillary transitional cell carcinoma stated to be noninvasive]. Extension into bladder diverticula does not change the code. Diverticula are pouches in the mucosa (mucous membrane). |
2004 | |
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20041049 | Histology (Pre-2007): What code is best used to represent a diagnosis of "metaplastic carcinoma, matrix producing type." The tumor shows poorly differentiated infiltrating duct carcinoma and myxoid, cartilaginous stroma. | For tumors diagnosed prior to 2007:
Code the histology to 8575 [metaplastic carcinoma, NOS]. According to the WHO Classification of Tumors of the Breast and Female Genital Organs, metaplastic carcinoma is a type of epithelial breast tumor. Matrix producing carcinoma is a synonym of metaplastic carcinoma. ICD-O-3 does not have a code for matrix producing 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. |
2004 | |
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20041045 | Histology (Pre-2007)--Ovary: What code is used to represent clear cell cystadenocarcinoma of the ovary? | For tumors diagnosed prior to 2007:
Code histology to 8310/3 [Clear cell adenocarcinoma, NOS]. This is consistent with the WHO Classification of Tumours and reflects the current practice of placing less emphasis on "cyst-" prefix for ovarian malignancies.
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. |
2004 | |
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20041069 | Reportability--Brain and CNS: Is a meningioma invading the bone malignant and, therefore, SEER reportable if diagnosed prior to 2004? See Discussion. |
1. Meningothelial meningioma with prominent nuclear pleomorphism, infiltration into dura, calvarium, temporalis skeletal muscle. Microscopic: Multifocal infiltration by meningothelial tumor...extensive infiltration of trabecular spaces, extension through inner and outer calvarial layers by meningioma...mitotic activity in tumor noted but below the 4 per 10 high power field threshold for diagnosis of atypical meningioma. 2. Aggressive (invasive) transitional type meningioma, neuroimaging and histology imply extensive invasive meningioma involving bone and paraspinal soft tissues. Microscopy:...invaded bone...focal EMA positivity diagnostic of invasive transitional type meningioma... tumor invades bone. |
The two cases above are benign meningiomas and not reportable prior to 2004. According to an expert consultant, meningiomas are in the lining cells for the inner table of the skull and as such have an affinity for bone that allows them to penetrate adjacent bone without being "malignant." The WHO Nervous System Tumor Classification states malignant meningioma exibits histological features of frank malignancy far in excess of the abnormalities present in atypical meningioma (WHO grade II). Examples of the histologic features of malignant meningioma are obviously malignant cytology, or high mitotic index (20 or more mitoses per 10 high-power fields). They correspond to WHO grade III and are usually fatal. |
2004 |