TIMD4 and histiocytic sarcoma: In fact, abnormal expression of TIMD4 has been reported in diverse cancer cells including diffuse large B‐cell lymphoma (DLBCL), non‐small‐cell lung cancer, glioma, renal cell carcinoma and histiocytic sarcoma and usually associated with adverse prognosis [48, 49, 50, 51, 52, 53].