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Demystifying Biclonal Gammopathy: A Pathologist's Perspective.

Abstract：

BACKGROUND:The production of 2 monoclonal proteins characterizes biclonal gammopathic manifestations (BGMs). The available medical literature from India is chiefly restricted to case reports. OBJECTIVE:To study the incidence of BGMs in a tertiary care center in Chandigarh, India, during a 4-year period. We evaluated these cases further for their laboratory characteristics. METHODS:We scrutinized the contents of a database containing information from the studied 4-year period. Cases reported as BGMs on serum protein electrophoresis (SPEP) and confirmed by serum immunofixation electrophoresis (SIFE) were included. RESULTS:A total of 15 cases, from a cohort of 914 cases of monoclonal gammopathic manifestations (MGMs), were available. On SPEP, 2 M bands were observed in 12 cases. On SIFE, 4 cases were reported as being of true BGMs. The most common heavy-chain combination observed was immunoglobulin (Ig)A-IgG. Follow-up was available in 2 patients. CONCLUSION:Identification of BGMs increases diagnostic precision, despite that the treatment is similar to that for monoclonal gammopathic manifestations (MGMs). BGMs can be transitory and may be observed at presentation or during the disease course.

journal_name

Lab Med

journal_title

Laboratory medicine

authors

Sharma S,Gupta P,Aggarwal R,Malhotra P,Minz RW,Bansal F

doi

10.1093/labmed/lmz006

subject

Has Abstract

pub_date

2019-10-10 00:00:00

pages

357-363

issue

4

eissn

0007-5027

issn

1943-7730

pii

5420479

journal_volume

50

pub_type

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