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Duct Orifice (duct + orifice)

Distribution by Scientific Domains
Medical Sciences75%

Selected Abstracts

Nasolacrimal Duct Orifice Cysts in Adults: A Previously Unrecognized, Easily Treatable Cause of Epiphora

THE LARYNGOSCOPE, Issue 10 2007
John M. DelGaudio MD
Abstract Background: Epiphora is a common problem evaluated by ophthalmologists and otolaryngologists. It is typically the result of obstruction at some level of the nasolacrimal system, either the canaliculi, sac, or duct. Multiple etiologies exist, including scarring from infection or trauma, tumors, or masses. Cysts of the nasolacrimal duct orifice (dacryocystoceles) in the inferior meatus have been described in neonates, usually presenting as obstructive nasal masses shortly after birth. Nasolacrimal duct orifice cysts have not been described in the adult population in the medical literature. Patients: Three patients were identified with epiphora as a result of cysts in the inferior meatus at the opening of the nasolacrimal duct. All patients presented with constant epiphora and were referred for dacryocystorhinostomy by an ophthalmologist or an otolaryngologist. None of the patients had a previous history of nasolacrimal duct (NLD) surgery. One patient had previous endoscopic sinus surgery for nasal polyps. Cysts were identified by nasal endoscopy of the inferior meatus in all patients. Results: All patients underwent endoscopic resection of the inferior meatus cyst to relieve the obstruction of the NLD. Two procedures were performed under general anesthesia and one under intravenous sedation. All patients had complete relief of epiphora and have had no evidence of recurrence of the symptoms or the cyst in 4 to 10 months follow-up. Conclusions: NLD orifice cysts are easily correctable causes of epiphora. Routine inferior meatus endoscopy should be routinely performed in patients with epiphora to identify whether on not this pathology is present prior to performing dacryocystorhinostomy. [source]

Atresia of the submandibular duct orifices: an unusual cause of feeding problems and failure to thrive in an infant

ACTA PAEDIATRICA, Issue 7 2010
Eva Ellegård
Abstract Atresia of the submandibular duct orifice is a rare developmental anomaly, which causes swelling of the duct by accumulation of saliva. The cystic mass in the floor of the mouth can cause feeding problems, which can be treated by surgical opening of the duct. We report the first Swedish case in a male infant, who had severe difficulties to feed because of bilateral swellings of the submandibular ducts caused by orifice atresia. Conclusion: This is the first case that has described failure to thrive because of this condition and catch up after treatment. It is important to remember that evaluation of feeding problem in an infant must include inspection of the oral cavity. [source]

Morphological Features of the Stomach of Malayan Pangolin, Manis javanica

ANATOMIA, HISTOLOGIA, EMBRYOLOGIA, Issue 5 2010
C. Nisa'
With 6 figures Summary The morphology of the stomach of Malayan pangolin, Manis javanica was studied at macroscopic, light microscopic, and scanning electron microscopic levels. The stomach of M. javanica was C-shaped with short lesser curvature. At the oesophageal junction, the inner smooth muscle was thickened in the greater curvature side. The entire stomach was lined by a thick cornified stratified squamous epithelium, except at the duct orifices of glands and in the pyloric gland region. The wall of the fundus was thin and devoid of glands. The gastric glands consisted of mucous, oxyntic, and pyloric glands. The mucous glands were observed in the lesser curvature (Mg-L), in the greater curvature (Mg-G), and in the pyloric canal (Mg-C) respectively. The oxyntic glands were organized into gland mass, making an oval mound elevated to the gastric lumen, in the middle of the greater curvature. The oxyntic gland mass has a single common duct with opening directed to the pyloric side. This duct was surrounded by mucus gland (Mg-G). The pyloric glands were located caudal to the pylorus. There was no sphincter at the pyloric-duodenal junction. Large mucosal protuberance, the torus pyloricus was observed in the side of the lesser curvature of the pyloric canal. In the lumen of pyloric canal region, numerous spines and small pebbles were observed. The muscle layers in the wall of this region were considerably thickened. The present results on the stomach of M. javanica are thought to be closely related to the toothless and eating habits of this animal species. [source]

Atresia of the submandibular duct orifices: an unusual cause of feeding problems and failure to thrive in an infant

ACTA PAEDIATRICA, Issue 7 2010
Eva Ellegård
Abstract Atresia of the submandibular duct orifice is a rare developmental anomaly, which causes swelling of the duct by accumulation of saliva. The cystic mass in the floor of the mouth can cause feeding problems, which can be treated by surgical opening of the duct. We report the first Swedish case in a male infant, who had severe difficulties to feed because of bilateral swellings of the submandibular ducts caused by orifice atresia. Conclusion: This is the first case that has described failure to thrive because of this condition and catch up after treatment. It is important to remember that evaluation of feeding problem in an infant must include inspection of the oral cavity. [source]