Fusiform enlargement of the nasolacrimal canal a rare anatomic variation

  title={Fusiform enlargement of the nasolacrimal canal a rare anatomic variation},
  author={A. Siricki and Yıldırım Ahmet Bayazıt and Meral Torun Bayram and Serhat Inaloz},
  journal={Surgical and Radiologic Anatomy},
To determine the standard width and shape of the nasolacrimal canal (NLC) in the coronal plane, a retrospective review of 950 coronal paranasal CT sections was undertaken. The coronal diameter of NLC was measured at its upper and lower ends and anomalies in its configuration noted. The mean diameters of the NLC were 4.8 ± 1.2 mm and 4.7 ± 1.1 mm on the right and left sides, respectively. There was no difference in the mean NLC diameter between the right and left sides, upper and lower portions… 
Giant dacryocystomucopyocele in an adult: a review of lacrimal sac enlargements with clinical and histopathologic differential diagnoses.
A 95-year-old woman with an acquired, enormous dacryocystomucopyocele is described, larger than any previously reported, that developed over 25 years and produced globe displacement with an associated conspicuous enlargement of the nasolacrimal duct.
Massive Enlargement of the Nasolacrimal Canal Causing Epiphora and Chronic Maxillary Sinusitis
This is the first report of a massively dilated NLC causing epiphora and chronic sinusitis, and is believed to be a rare anatomic variant.


Enlargement of the nasolacrimal canal in the absence of neoplasia.
Nasolacrimal canal enlargement may occur without neoplasia of the lacrimal sac or nasolacimal duct in the absence of associated neoplasm in uncommon patients.
An anatomical basis for primary acquired nasolacrimal duct obstruction.
Size differences are found in measurements of bony nasolacrimal excretory systems in men vs women, and women have significantly smaller dimensions in the lower nasolACrimal fossa and the middle NLD.
Tear duct size differences of age, sex and race.
  • R. H. Post
  • Biology, Medicine
    American journal of physical anthropology
  • 1969
Measurements of the external opening of the tear duct of skulls of American colored males and white males indicate larger apertures among the former at corresponding ages, which may reflect ecological adaptation.
Langman's Medical Embryology
Langman's Medical Embryology
Langman's medical embryology , Langman's medical embryology , کتابخانه دیجیتال جندی شاپور اهواز
The branchial or pharyngeal apparatus
  • Before we are Born . Essentials of Embryology and Birth Defects
  • 1993
The branchial or pharyngeal apparatus. In Before we are Born. Essentials of Embryology and Birth Defects
  • 1993
Branchial apparatus and head and neck
  • In Essentials of Human Embryology. Blackwell Scientific Publications,
  • 1988
Lacrimal Surgery. Churchill Livingstone, New York, pp
  • 1988