![Cureus | Polyneuropathy, Organomegaly, Endocrinopathy, Monoclonal Gammopathy, and Skin Changes (POEMS) Syndrome With IgG Kappa/IgG Lambda Biclonal Gammopathy: A Rare Presentation of a Rare Disease | Article Cureus | Polyneuropathy, Organomegaly, Endocrinopathy, Monoclonal Gammopathy, and Skin Changes (POEMS) Syndrome With IgG Kappa/IgG Lambda Biclonal Gammopathy: A Rare Presentation of a Rare Disease | Article](https://assets.cureus.com/uploads/figure/file/139944/lightbox_eed53fe0edc311eaad5dbf0d4326af5f-article_river_02922600e41511ea8b422781d8bd0d6e-EFP-e-inmunofijacionnew.png)
Cureus | Polyneuropathy, Organomegaly, Endocrinopathy, Monoclonal Gammopathy, and Skin Changes (POEMS) Syndrome With IgG Kappa/IgG Lambda Biclonal Gammopathy: A Rare Presentation of a Rare Disease | Article
![JCM | Free Full-Text | K Index is a Reliable Marker of Intrathecal Synthesis, and an Alternative to IgG Index in Multiple Sclerosis Diagnostic Work-Up JCM | Free Full-Text | K Index is a Reliable Marker of Intrathecal Synthesis, and an Alternative to IgG Index in Multiple Sclerosis Diagnostic Work-Up](https://www.mdpi.com/jcm/jcm-08-00446/article_deploy/html/images/jcm-08-00446-g001.png)
JCM | Free Full-Text | K Index is a Reliable Marker of Intrathecal Synthesis, and an Alternative to IgG Index in Multiple Sclerosis Diagnostic Work-Up
![Antibodies | Free Full-Text | Antibody Fragments and Their Purification by Protein L Affinity Chromatography Antibodies | Free Full-Text | Antibody Fragments and Their Purification by Protein L Affinity Chromatography](https://pub.mdpi-res.com/antibodies/antibodies-04-00259/article_deploy/html/images/antibodies-04-00259-g001.png?1444854447)
Antibodies | Free Full-Text | Antibody Fragments and Their Purification by Protein L Affinity Chromatography
![Laboratory testing in the evaluation of a monoclonal protein: A practical framework for interpretation Laboratory testing in the evaluation of a monoclonal protein: A practical framework for interpretation](http://www.scielo.org.za/img/revistas/samj/v109n10/08f01.jpg)
Laboratory testing in the evaluation of a monoclonal protein: A practical framework for interpretation
![IgG1, Kappa from murine myeloma clone MOPC 21, purified immunoglobulin, buffered aqueous solution Mouse IgG1-kappa IgG1, Kappa from murine myeloma clone MOPC 21, purified immunoglobulin, buffered aqueous solution Mouse IgG1-kappa](https://www.sigmaaldrich.com/deepweb/content/dam/sigma-aldrich/product7/105/igg2a_k-illustration.eps/_jcr_content/renditions/igg2a_k-illustration-medium.jpg)
IgG1, Kappa from murine myeloma clone MOPC 21, purified immunoglobulin, buffered aqueous solution Mouse IgG1-kappa
![Measurement of kappa () and lambda () light chains in free and total... | Download Scientific Diagram Measurement of kappa () and lambda () light chains in free and total... | Download Scientific Diagram](https://www.researchgate.net/publication/292707470/figure/fig4/AS:669620646187022@1536661411380/Measurement-of-kappa-and-lambda-light-chains-in-free-and-total-assays-Total-light.png)