71 research outputs found
Characterization of ex vivo healthy human axillary lymph nodes with high resolution 7 Tesla MRI
GTV delineation in supraglottic laryngeal carcinoma: interobserver agreement of CT versus CT-MR delineation
Cost-effectiveness of response evaluation after chemoradiation in patients with advanced oropharyngeal cancer using 18F–FDG-PET-CT and/or diffusion-weighted MRI
Apparent annual survival of staging ruffs during a period of population decline: insights from sex and site-use related differences
Platelet-rich plasma in orthopedic therapy: a comparative systematic review of clinical and experimental data in equine and human musculoskeletal lesions
Diameter of the bony lacrimal canal:Normal values and values related to nasolacrimal duct obstruction: Assessment with CT
Screening for distant metastases in patients with head and neck cancer:what is the current clinical practice?
Diameter of the bony lacrimal canal: Normal values and values related to nasolacrimal duct obstruction: Assessment with CT
BACKGROUND AND PURPOSE: Epiphora, or tearing due to primary acquired nasolacrimal duct obstruction (PANDO), is increasingly being treated with balloon dilatation, The cause of PANDO is unknown, but a small diameter of the bony nasolacrimal canal might be one of the etiologic factors. The purpose of this study was to determine the normal distribution of diameters of the bony canal and to ascertain whether there is an association between the diameter of the bon,v canal and primary nasolacrimal duct obstruction. METHODS: Using axial CT, we measured the minimum diameter of the bony nasolacrimal canal in a control group of 50 men and 50 women and in 19 patients with PANDO. RESULTS: The mean minimum diameter in the control group was 3.5 mm, which was smaller than expected on the basis of published data. The difference between the mean minimum diameter in men (3.70 mm) and that in women (3.35 mm) was significant. The mean minimum diameter in the patient group was 3.0 mm, which was significantly smaller than that in the control group. There was, however, considerable overlap. CONCLUSIONS: A small diameter of the bony canal appears to be one of the etiologic factors in PANDO
Screening for distant metastases in patients with head and neck cancer:what is the current clinical practice?
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