PURPOSE: To evaluate the characteristics of CT findings in differential diagnosis of cervical lymphadenopathy. MATERIALS AND METHODS: We evaluated CT findings of histopathologically proved 32 cases of tuberculous lymphadenitis, 12 cases of nodal lymphoma, 29 cases of metastasis from March 1986 to Dec. 1992, retrospectively. We analyzed age and sex distribution, location of lymphadenopathy, internal nodal density, feature of contrast enhancement, extracapsular spread and nodal calcification. RESULTS: Tuberculous lymphadenitis was more preponderant in young female (mean;32) and CT showed internal low density(91%) with irregular thick marginal enhancement(46.9%), predilection for spinal accessory node(71.9%), and nodal calcification(5/32). Nodal lymphoma showed predilection for internal jugular chain (100%) and had conglomerated homogeneous internal node structures(83%). Metastasis showed old male preponderance (mean :52 years), predilected at internal jugular chain(89.7%),internal low density(93.3%) with regular thin marginal enhancement(44.8%), extracapsular spread(41.4%), and nodal calcification(2 cases of nodal metastasis of papillary type thyroid cancer). CONCLUSION: We concluded that CT evaluation of the chracteristics of lymphadenopathy is helpful for differential diagnosis of cervical lymphadenopathy.
Diagnosis, Differential* ; Female ; Humans ; Lymphatic Diseases* ; Lymphoma ; Male ; Neoplasm Metastasis ; Retrospective Studies ; Sex Distribution ; Thyroid Gland ; Tuberculosis, Lymph Node

PURPOSE: The purpose of this study was to compare contrast dacryocystography with lacrimal dacryo-scintigraphy in correlation with epiphora, superiority in localization of the site of obstruction and discomfort of partient during procedures. MATERIAL AND METHODS: Lacrimal dacryoscintigraphy and contrast dacryocystography were performed in 200 lacrimal drainage systems in 100 patients who were referred to our hospital with epiphora since January, 1993. RESULTS: Lacrimal dacryoscintigraphy showed 88% in correlation with epiphora, 90% in positive predictive value and 74% in negative predictive value. Contrast dacryocystography showed 72% in correlation with epiphora, 97% in positive predictive value and 60% in negative predictive value. Contrast dacryocystography was superior to lacrimal dacryoscintigraphy in localization of the site of the obstruction because of limitation of resolution of 6mm pin hole collimator. But discomfort of patient was variable and severe on contrast dacryocystography. CONCLUSION: When obstruction is suspected, we recommend the lacrimal dacryoscintigraphy as initial radio-graphic study. If adequate information is not available and confirmation is necessary, contrast dacryo-cystography should be done in next step. Inspite of patient symptom, if finding of contrast dacryocystography is normal, lacrimal dacryoscintigraphy should be performed to exclude functional obstruction.
Drainage ; Humans ; Lacrimal Apparatus Diseases*

PURPOSE: The purpose of this study was to compare contrast dacryocystography with lacrimal dacryo-scintigraphy in correlation with epiphora, superiority in localization of the site of obstruction and discomfort of partient during procedures. MATERIAL AND METHODS: Lacrimal dacryoscintigraphy and contrast dacryocystography were performed in 200 lacrimal drainage systems in 100 patients who were referred to our hospital with epiphora since January, 1993. RESULTS: Lacrimal dacryoscintigraphy showed 88% in correlation with epiphora, 90% in positive predictive value and 74% in negative predictive value. Contrast dacryocystography showed 72% in correlation with epiphora, 97% in positive predictive value and 60% in negative predictive value. Contrast dacryocystography was superior to lacrimal dacryoscintigraphy in localization of the site of the obstruction because of limitation of resolution of 6mm pin hole collimator. But discomfort of patient was variable and severe on contrast dacryocystography. CONCLUSION: When obstruction is suspected, we recommend the lacrimal dacryoscintigraphy as initial radio-graphic study. If adequate information is not available and confirmation is necessary, contrast dacryo-cystography should be done in next step. Inspite of patient symptom, if finding of contrast dacryocystography is normal, lacrimal dacryoscintigraphy should be performed to exclude functional obstruction.
Drainage ; Humans ; Lacrimal Apparatus Diseases*