T-cell malignancies are related to various stages of T-lymphocyte differentiation and, consequently, bear diverse immunological and cytochemical markers. The processes may have different malignant potential. Thymus, thymus-dependent areas of lymphatic organs, skin and central nervous system are frequently involved. The histological descriptions of the lesions in question are given.
T细胞恶性肿瘤与T淋巴细胞分化的各个阶段相关，因此具有多种免疫和细胞化学标志物。这些过程可能具有不同的恶性潜能。胸腺、淋巴器官的胸腺依赖区、皮肤和中枢神经系统经常受累。文中给出了相关病变的组织学描述。
