Takeda M, Tomita H, Goto N
Department of Otolaryngology, Nihon University School of Medicine, Tokyo, Japan.
Auris Nasus Larynx. 1990;17(4):199-210. doi: 10.1016/s0385-8146(12)80063-0.
We examined the actual circumstances of idiopathic pseudocyst of the auricle and morphological characteristics of the auricular vascular system, utilizing the serial sections of tissue blocks embedded in celloidin. While the origin of pseudocyst of the auricle is considered to have much to do with the vascular system, there are still many unknown factors regarding the auricular vascular system itself. The morphology of the proximal portion has been described in various documents, but the details have not yet been elucidated. In order to examine this, we made close observation of the auricular vascular system. The materials used consisted of eight auricles obtained from corpses for the anatomical dissection. Four auricles were macroscopically dissected and observed after being injected with dye into the vascular system, whereas the remaining four auricles were observed with a new staining process using the celloidin serial section method in which sections are alternatively stained with luxol fast blue-PAS-hematoxylin and modified Masson-Goldner stain. In the macroscopical observation of arteries being distributed in auricles, the arteries perforating the auricular cartilage mentioned in documents were not be confirmed. In the observation of the serial sections, capillary plexuses were able to be confirmed along the periphery, very close to the auricular cartilage. Pathohistological findings with regard to four cases of idiopathic pseudocyst of the auricles were examined and closely compared with the histological findings of normal cases. It was presumed that idiopathic pseudocyst of the auricles were caused by bendings or oppressions of auricles, which perhaps caused circulatory disturbance, leading ultimately to partial split of the auricular cartilage.
我们利用火棉胶包埋组织块的连续切片，研究了耳廓特发性假性囊肿的实际情况以及耳廓血管系统的形态特征。虽然耳廓假性囊肿的起源被认为与血管系统密切相关，但关于耳廓血管系统本身仍有许多未知因素。近端部分的形态在各种文献中已有描述，但细节尚未阐明。为了研究这一点，我们对耳廓血管系统进行了仔细观察。所用材料包括从尸体上获取的8个耳廓用于解剖。4个耳廓在向血管系统注射染料后进行宏观解剖和观察，而其余4个耳廓则采用火棉胶连续切片法进行新的染色观察，切片交替用卢戈氏坚牢蓝-过碘酸希夫染色法-苏木精染色和改良的马森-戈德纳染色法染色。在对分布于耳廓的动脉进行宏观观察时，未证实文献中提到的穿透耳廓软骨的动脉。在连续切片观察中，能够在非常靠近耳廓软骨的周边确认毛细血管丛。对4例耳廓特发性假性囊肿的病理组织学结果进行了检查，并与正常病例的组织学结果进行了仔细比较。推测耳廓特发性假性囊肿是由耳廓的弯曲或压迫引起的，这可能导致循环障碍，最终导致耳廓软骨部分裂开。
