The autoimmune lymphoproliferative syndrome (ALPS) and ALPS-like syndrome are variable clinical conditions characterized by lymphoproliferative disease, autoimmune cytopenias and susceptibility to malignancy. A 59-year-old woman was admitted to the hospital for intractable generalized pain and stiffness with multiple swollen joints for 2 weeks. A low-grade fever, intermittent hypotension and confusion were associated with the pain. The evaluation revealed multiple joint bony erosions with effusion and a ruptured Baker’s cyst and positive AFB testing on the joint biopsy of the right wrist. In addition, there were a macular skin rash with telangiectasia and perivascular lymphocyte infiltration, a cytopenia without abnormal cells, a hepatosplenomegaly, a pericardial thickness with effusion and pleural effusion. The patient was treated with anti-mycobacterial drugs, NSAIDs and glucocorticoids for 10 months. But with the symptoms worsening, the patient developed cervical lymph node enlargements and was diagnosed as a diffuse large B cell lymphoma with hemophagocytosis on biopsy.