sentences:  The cell of origin for this disease is an immature cytotoxic T-cell clonally expressing the γδ T-cell receptor.This disease is seen more often in immunosuppressed solid organ transplant recipients, an association that has led to the hypothesis that long-term immune stimulation in the setting of immunosuppression is the causative agent.Cases of hepatosplenic T-cell lymphoma (HSTCL) have been reported in patients treated with the immunosuppressants azathioprine, infliximab and adalimumab.