Unexpected Diagnosis of Non-Hodgkin Lymphoma After Liver Transplant: A Case Report of Suspected Neuroendocrine Tumor Recurrence Managed with Robotic Distal Pancreatectomy and Splenectomy.

The development of non-Hodgkin lymphoma following liver transplant is rare. We present an unusual case of a 40-year-old female patient with morbid obesity who had undergone a deceased donor liver transplant for an unresectable neuroendocrine tumor of the liver 12 years ago. She presented with a lesion in the tail of pancreas that was suggestive of a recurrent neuroendocrine tumor. She underwent robotic-assisted distal pancre-atectomy and splenectomy, which demonstrated a final diagnosis of splenic marginal zone lymphoma. Although there is a high likelihood of recurrence of neuroen-docrine tumor after transplant, non-Hodgkin lymphoma and posttransplant lymphoproliferative disorder must be considered in the background of transplant and solid-organ malignancy.