Ichioka S, Yamada A, Ueda K, Harii K
Division of Plastic Surgery, Tomei-Atsugi Hospital, Kanagawa, Japan.
Ann Plast Surg. 1993 Nov;31(5):471-4. doi: 10.1097/00000637-199311000-00017.
Pseudocyst of the auricle is a rare, asymptomatic cystic swelling of the auricle resulting from accumulation of yellow viscous fluid with unknown cause. We herein report 3 such patients in whom biochemical study of the aspirated fluid revealed markedly elevated activity of lactate dehydrogenase (LDH) and a preponderance of LDH-4 and LDH-5. We postulate that pseudocyst formation is due to the disruption of the auricular cartilage and that LDH in the fluid is released from the auricular cartilage. This observation supports that the lesions represent a pattern of chondromalacia. It is hypothesized that the cause of such pseudocysts is repeated minor trauma.
耳廓假性囊肿是一种罕见的、无症状的耳廓囊性肿胀，由原因不明的黄色粘性液体积聚所致。我们在此报告3例此类患者，对其抽吸液进行的生化研究显示乳酸脱氢酶（LDH）活性显著升高，且以LDH-4和LDH-5为主。我们推测假性囊肿的形成是由于耳廓软骨的破坏，且液体中的LDH是从耳廓软骨释放出来的。这一观察结果支持这些病变代表一种软骨软化模式。据推测，此类假性囊肿的病因是反复的轻微创伤。
