非典型急性白血病因其特殊的临床表现作为其初发症状或体征,易致误诊。复习本院1980年至1988年435例急性白血病住院病例有特殊临床表现者18例(占4.13％)。结合文献扼要讨论如下: 一、以胸腔积液肺部肿块为主要表现者3例。例1(ALL、L_1)、例2(ANL、M_1)表现为胸腔积液,例3(ALL,L_2)右下肺4×4cm块影,分别误诊为结核性胸膜炎、肺癌。因贫血进行性加重,血小板减少,乃作骨髓穿刺确诊。恶性血液病 Atypical acute leukemia due to its special clinical manifestations as the initial symptoms or signs, easily lead to misdiagnosis. Review of our hospital from 1980 to 1988, 435 cases of acute leukemia hospitalized patients with special clinical manifestations in 18 cases (4.13%). Brief summary of the literature as follows: First, pleural effusion lung mass as the main performance in 3 cases. Case 1 (ALL, L_1) and case 2 (ANL, M_1) showed pleural effusion. In case 3 (ALL, L_2), the right lower quadrant 4 × 4cm block was misdiagnosed as tuberculous pleurisy and lung cancer respectively. Due to progressive anemia, thrombocytopenia, bone marrow puncture is diagnosed. Malignant blood disease