<p style="margin-left:0;text-indent:0;text-autospace:ideograph-numeric;line-height:24px"><strong><span style="font-family: 宋体;font-size: 14px"><span style="font-family:宋体">（</span></span></strong><strong><span style="font-family: 宋体;font-size: 14px"><span style="font-family:宋体">94</span></span></strong><strong><span style="font-family: 宋体;font-size: 14px"><span style="font-family:宋体">～</span></span></strong><strong><span style="font-family: 宋体;font-size: 14px"><span style="font-family:宋体">96</span></span></strong><strong><span style="font-family: 宋体;font-size: 14px"><span style="font-family:宋体">题共用题干）</span></span></strong></p><p style="margin-left: 0px; text-indent: 0px; line-height: 24px;"><span style="font-family: 宋体;font-size: 14px"><span style="font-family:宋体">患者，男，</span><span style="font-family:宋体">52岁。诊断为急性淋巴细胞白血病。化疗后第6天出现肛周红、肿、热、痛，体温达39.8℃。血常规示WBC </span></span><span style="font-family: 宋体;font-size: 14px"><span style="font-family:宋体">3</span></span><span style="font-family: 宋体;font-size: 14px"><span style="font-family:宋体">.5</span></span><span style="font-family: 宋体;font-size: 14px"><span style="font-family:宋体">×</span></span><span style="font-family: 宋体;font-size: 14px"><span style="font-family:宋体">10</span></span><sup><span style="font-family: 宋体;font-size: 14px;vertical-align: super"><span style="font-family:宋体">9</span></span></sup><span style="font-family: 宋体;font-size: 14px"><span style="font-family:宋体">/L，Hb 65</span></span><span style="font-family: 宋体;font-size: 14px"><span style="font-family:宋体">g</span></span><span style="font-family: 宋体;font-size: 14px"><span style="font-family:宋体">/L，Pl</span></span><span style="font-family: 宋体;font-size: 14px"><span style="font-family:宋体">t</span></span><span style="font-family: 宋体;font-size: 14px"> <span style="font-family:宋体">40</span></span><span style="font-family: 宋体;font-size: 14px"><span style="font-family:宋体">×</span></span><span style="font-family: 宋体;font-size: 14px"><span style="font-family:宋体">10</span></span><sup><span style="font-family: 宋体;font-size: 14px;vertical-align: super"><span style="font-family:宋体">9</span></span></sup><span style="font-family: 宋体;font-size: 14px"><span style="font-family:宋体">/L。</span></span></p><p style='font-size: 18px;text-indent:36px;'>患者次日凌晨出现烦躁不安，T39.1℃，BP85/50mmHg，P120次/分。该患者最可能发生了何种并发症</p>