Kakizaki Hirohiko, Zako Masahiro, Miyaishi Osamu, Nakano Takashi, Asamoto Ken, Iwaki Masayoshi
Department of Ophthalmology, Aichi Medical University, Aichi-gun, Aichi-ken, Japan.
Orbit. 2007 Dec;26(4):237-9. doi: 10.1080/01676830600987284.
Although many illustrations have been published seeking to explain the anatomy of the lacrimal canaliculus and its surroundings, to our knowledge, no micrograph showing the total length of the lacrimal canaliculus has ever been displayed. Here, we present a clear microscopic cross-section of the total length of an upper lacrimal canaliculus, except for the vertical part. A winding path was found in part of the canaliculus. The common canaliculus opened into the lacrimal sac almost perpendicularly and was covered by solid fibrous tissue. The transition between squamous cell epithelium and columnar epithelium did not always take place at the opening. There were superficial goblet cells, mucous secretory glands and intraluminal debris in the distal part of the canaliculus, including the common canaliculus, where the lining consisted of columnar epithelium. The clear overview of the structures presented here should be helpful in the treatment of the lacrimal canaliculus.
尽管已经发表了许多试图解释泪小管及其周围解剖结构的插图，但据我们所知，从未展示过显示泪小管全长的显微照片。在此，我们展示了一条上泪小管除垂直部分外的全长清晰显微横截面。在部分泪小管中发现了一条蜿蜒的路径。共同泪小管几乎垂直开口于泪囊，并被坚实的纤维组织覆盖。鳞状上皮和柱状上皮之间的过渡并不总是发生在开口处。在泪小管的远端部分，包括共同泪小管，其内衬为柱状上皮，存在浅表杯状细胞、粘液分泌腺和管腔内碎屑。此处呈现的结构清晰概述应有助于泪小管的治疗。
