SEER Inquiry System - Report
Produced: 11/26/2024 9:17 AM
Question 20210060
Inquiry Details
References:
#1: 2021 SEER Manual, 6. Reportability
#2: ICD-O-3.2
Question:
Reportability/Histology--Thymus: Is a 2021 diagnosis of a type A microscopic thymoma reportable? See Discussion.
Discussion:
ICD-O-3.2 lists microscopic thymoma as benign (8580/0) and thymoma, type A as malignant (8581/3).
January 2021: Left central neck node dissection for thyroid carcinoma with thymic tissue showing an incidental type A microscopic thymoma, described as a small (<0.2 cm) focus. Diagnosis comments further indicate this is morphologically consistent with a microscopic thymoma (type A).
Answer:
Report this case as type A thymoma. We consulted an expert physician and his advice on this specific case is to interpret it as a malignancy and report.
Use text fields to record the details of this case.
Cancer Site Category:
N/A
Data Item Category:
Histology
Other Category:
Reportability
Year:
2021