Singh H M, Thomas D M
Thorax. 1973 Jul;28(4):442-3. doi: 10.1136/thx.28.4.442.
. , , 442-443. . Three patients with intrathoracic adenocystic tumour of the trachea presented as difficult diagnostic problems. All three patients had been labelled as psychiatric problems. Present in two of the cases, the sniff sign proved diagnostic and occurred at a stage when occlusion of the trachea during expiration was almost total. In order to breathe, the patients drew in small sharp, sniffing breaths. The sign owes its name to this pattern of breathing.
.,, 442 - 443。3例气管胸内腺囊瘤患者诊断困难。这3例患者最初均被诊断为精神疾病。2例患者出现了嗅吸征，此征具有诊断意义，且出现在呼气时气管几乎完全阻塞的阶段。为了呼吸，患者急促地吸入小口气，呈嗅吸状呼吸。该体征因其呼吸模式而得名。
