نتایج جستجو برای: lacrimal sac
تعداد نتایج: 17412 فیلتر نتایج به سال:
The lacrimal drainage system consists of the puncta (upper and lower within the eyelids) which are the opening to the upper and lower canaliculus. These meet at the common canaliculus and open into the lacrimal (tear) sac. This runs parallel to the nose and is separated from the middle meatus of the nasal cavity by two thin plates of bone. It continues down to become the nasolacrimal duct (tear...
The lacrimal drainage system consists of the puncta (upper and lower within the eyelids) which are the opening to the upper and lower canaliculus. These meet at the common canaliculus and open into the lacrimal (tear) sac. This runs parallel to the nose and is separated from the middle meatus of the nasal cavity by two thin plates of bone. It continues down to become the nasolacrimal duct (tear...
Objective: To determine whether routine biopsy of the lacrimal sac wall at dacryocystorhinostomy (DCR) is indicated. Methods: A prospective study and literature review. In 193 consecutive endoscopic DCRs performed on 164 patients (108 females and 56 males) part of the medial wall of the lacrimal sac was sent for histological examination. The mean age of the patients was 64 years with a range of...
INTRODUCTION Rhinosporidiosis may mimic a burst chalazion or a simple conjunctival polyp. OBJECTIVE To study the demography, histopathological evaluation, treatment modalities, their outcomes and recurrence rates in patients clinically and histopathologically diagnosed as ocular and adnexal rhinosporidiosis. PATIENTS AND METHODS The study was conducted in the Department of Orbit, Oculoplast...
PURPOSE To evaluate the efficacy of a sleeve technique during endoscopic dacryocystorhinostomy (DCR) in primary nasolacrimal duct obstruction (NLDO) patients with a high lacrimal sac. MATERIALS AND METHODS The medical records of 45 patients (49 cases) undergoing endoscopic DCR for primary NLDO with a high lacrimal sac were retrospectively reviewed. In 19 patients (21 cases), the thick maxilla...
Objective: To investigate the reliability of dacryocystorhinostomy operations in terms viral spread by examining presence severe acute respiratory syndrome (SARS) corona-virus type 2 (SARS-CoV-2) lacrimal sac.
 Methods: A total 15 eyes 14 patients nasolacrimal duct obstruction that was scheduled for external operation were prospectively included study. Patients who have coronavirus disease...
Purpose Primary ductal adenocarcinoma arising in the structures of the lacrimal apparatus is extremely rare, and the entity is considered a lacrimal counterpart of salivary duct carcinoma, of which the majority are known to express androgen receptor (AR). Less than 10 cases of AR-positive carcinomas of lacrimal gland or lacrimal sac have been described. Observations We present a primary ducta...
OBJECTIVE Myiasis is the invasion of human tissues by Diptera larvae. Ocular involvement is uncommon. Trauma is the major cause of lacrimal apparatus lesions. However, it is rarely associated with parasitic infestation. The objective of this paper is to report a case of canalicular laceration caused by Dermatobia hominis larva. DESCRIPTION An eight-year-old girl presented preseptal cellulitis...
The lacrimal system is comprised of the lacrimal glands for tear production and the lacrimal drainage system for draining tears away from the eyes. Congenital lacrimal system anomalies other than nasolacrimal duct obstruction are uncommon. Congenital lacrimal fistulae are a rare developmental anomaly, and when they occur, they are usually unilateral. Fistulae and diverticulae can originate from...
Obstruction of the lacrimal pathway is manifested by epiphora, infection, and blurred vision as well as ocular and facial pain. Conservative treatments only achieve temporary relief of symptoms, thus surgery is the treatment of choice. Dacryocystorhinostomy (DCR) is recognized as the most suitable treatment for patients with obstructions of the lacrimal system at the level of the sac or in the ...
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