Prognosis

The prognosis of extranodal NK/T-cell lymphoma, nasal type, is poor, and most patients die a few months after the diagnosis [5,48]. The estimated 5-year survival is 0% [5]. Patients reported to have better prognosis and coexpression of CD30 and CD56 probably had examples of CD30+ anaplastic large cell lymphoma [56].

Fig. 6.24 NK/T-cell lymphoma, nasal type. (a) Positivity of neoplastic cells for the cytotoxic marker TIA-1. (b) Positive signal within neoplastic cells after in situ hybridization for the Epstein-Barr virus (EBER-1).

Fig. 6.24 NK/T-cell lymphoma, nasal type. (a) Positivity of neoplastic cells for the cytotoxic marker TIA-1. (b) Positive signal within neoplastic cells after in situ hybridization for the Epstein-Barr virus (EBER-1).

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