# IgG‐Secreting Lymphoplasmacytic Lymphoma Presenting With Massive Kidney Infiltration

## TL;DR

A rare case of IgG-secreting lymphoplasmacytic lymphoma caused kidney damage, which improved with chemotherapy.

## Contribution

This case highlights a rare presentation of LPL with massive kidney infiltration and its successful treatment.

## Key findings

- The patient had acute kidney injury due to direct tumor infiltration from IgG-secreting LPL.
- Chemotherapy led to both hematological and renal improvements in the patient.

## Abstract

Various factors related to lymphoplasmacytic lymphoma (LPL) can lead to kidney complications; however, LPL‐related kidney complications are not as well‐described as those with multiple myeloma. Here, we report a case of IgG‐secreting LPL presenting with acute kidney injury owing to direct tumor infiltration. Chemotherapy resulted in hematological and renal improvements.