[名词解释] 棕色脂肪(brownfat)

男，52岁，血涕3月余。CT如图所示，最可能的诊断为() ["A．鼻咽癌","B．咽旁混合瘤","C．咽部神经纤维瘤","D．小唾液腺瘤","E．咽旁脓肿"] 早产儿视网膜病 中性温度 鼻窦不包括下列哪项() ["A．蝶窦","B．直窦","C．上颌窦","D．额窦","E．筛窦"] 男，20岁，头痛、鼻塞、鼻出血，CT如图所示，最可能诊断为() ["A．鼻咽癌","B．巨大的鼻息肉","C．鼻咽纤维血管瘤","D．鼻咽神经纤维瘤","E．鼻咽腺样体增生"] 棕色脂肪(brownfat)