SEER Inquiry System - Report
Produced: 11/24/2024 5:37 PM
Question 20140084
Inquiry Details
References:
Heme & Lymph Manual & DB
Question:
Histology--Heme & Lymphoid Neoplasms: Should the 1995 diagnosis be changed to plasmacytoma? A 1995 case on the central registry database indicates that MRI and bone surveys revealed a pubic ramus lesion that was biopsied. There are no other bone lesions. A bone marrow biopsy was negative. The pathologist's diagnosis at that time was "Plasma Cell Myeloma". In 2013 there was a positive bone marrow biopsy and a diagnosis of Plasma Cell Myeloma. In 2013, a history of "sequential plasmacytomas since 1995" was mentioned. Since the 1995 diagnosis was only a solitary bone lesion with no marrow involvement, it certainly seems to fit a diagnosis of plasmacytoma better than myeloma.
Discussion:
Answer:
Do not change the 1995 diagnosis in this case. It is best to code the histology according to information from the time of the diagnosis. Using information obtained many years later is less reliable.