Relapsed IgA Multiple Myeloma as Testicular Plasmacytoma after Quadrable Novel Therapy and Autologous Stem Cell Transplant: A Rare Case Report and Literature Review

<h3>Introduction</h3><p dir="ltr">Multiple myeloma (MM) is a clonal neoplasm of plasma cells that may manifest as an extramedullary disease in rare cases. </p><h3>Case Report</h3><p dir="ltr">In this case report, we present the rare occurrence of testicular relapse in a 39-year-old patient with IgA MM after 3 years of remission. We discuss the clinical course and management of this unusual presentation and provide a comprehensive literature review of testicular involvement by MM. </p><h3>Conclusion</h3><p dir="ltr">Despite advances in MM treatment, relapse remains common, highlighting the importance of careful follow-up and timely detection of disease recurrence at atypical sites. This case highlights the need for further research to standardize the diagnosis and treatment of testicular MM.</p><h2>Other Information</h2><p dir="ltr">Published in: Case Reports in Oncology<br>License: <a href="https://creativecommons.org/licenses/by-nc/4.0/" target="_blank">https://creativecommons.org/licenses/by-nc/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1159/000536512" target="_blank">https://dx.doi.org/10.1159/000536512</a></p>