1.CT Findings of Neck Lymphoma:Significance of Central Low Attenuation and Differentiation of Non-Hodgkin's Lymphoma from Hodgkin's Disease.
Yup YOON ; Woo Suk CHOI ; Yu Mee JEONG
Journal of the Korean Radiological Society 1995;33(3):345-349
PURPOSE: Lymphoma is considered when multiple, nonnecrotic lymph nodes are present in the superficial and deep lymphatic chains, especially if they are large and bilateral, on CT scan. It is reported that combined nodal and extranodal presentation of HD is uncommon. However, we found central low density in involved lymph node of NHL, and combined nodal and extranodal disease in HD, not infrequently. The purpose of this study is to ascertain whether our findings may be characteristics of NHL and HD. MATERIALS AND METHODS: CT findings with contrast enhancement were reviewed in 23 patients with untreated neck lymphoma:18 NHL and 5 HD. The followings were analyzed in each case: nodal or extranodal involvement; unilateral or bilateral involvement; presence or absence of central low density with peripheral enhancement in nodal lesion ;infiltration into adjacent structures. Nodal and extranodal lesions were confirmed by pathologic studies. RESULTS: Of 18 patients with NHL, nine cases had nodal disease and the rest had combined nodal and extranodal disease. Lymphadenopathy was bilateral in ten cases and unilateral in eight. Five cases with HD were composed of three combined nodal and extranodal diseases and two nodal diseases. Central low density of involved lymph node was shown in eight cases of 18 NHL and in one case of five HD. CONCLUSION: Central low density with peripheral enhancement was not uncommon in NHL, in contrast to HD. Hence, it is suggested that in case of nodal necrosis, NHL be also considered, besides tuberculous lymphadenitis and metastatic lymphadenopathy. It is not considered that nodal or extranodal disease, and unilateral or bilateral involvement are of high significance in differentiation of NHL from HD.
Hodgkin Disease*
;
Humans
;
Lymph Nodes
;
Lymphatic Diseases
;
Lymphoma
;
Lymphoma, Non-Hodgkin*
;
Neck*
;
Necrosis
;
Tomography, X-Ray Computed
;
Tuberculosis, Lymph Node
2.Combined Effect of Angioinfarction with Immunotherapy in Patients with Stage IV Renal Cell Carcinoma.
Young Tae KO ; Joo Hyeong OH ; Yup YOON ; Yu Mee JEONG ; Sung Goo CHANG
Journal of the Korean Radiological Society 1994;31(1):49-53
PURPOSE: To assess the combined effectiveness of angioinfarction and immunotherapy for improving survival in patients with stage IV renal cell carcinoma. MATERIALS AND METHODS:During the past 3 years, 13 patients of stage IV renal cell carcinoma were treated with angioinfarction and immunotherapy. Angioinfarction was performed on these 13 patients using absolute ethanol and occlusive baloon catheter. After angioinfarction, Interferon alpha was used for immunotherapy. For our analysis, 12 control patients of stage IV renal cell carcinoma without treatment were included in the study. Survival has been calculated according to the Kaplan and Meier method. RESULTS: The 1 year survival rate and median survival time in patients treated with angioinfarction and immunotherapy, were 46% and 13 months and in patients without treatment, 16% and 4 months, respectively. CONCLUSION:The combined treatment of angioinfarction and immunotherapy is of considerable value for improving survival in patients with stage IV renal cell carcinoma
Carcinoma, Renal Cell*
;
Catheters
;
Ethanol
;
Humans
;
Immunotherapy*
;
Interferon-alpha
;
Survival Rate
3.Comparison of MRI and Discography in Disc Extrusion: Low Signal Intensity Change in the Anterior Epidural Space at Sagittal T1-weighted Imaging.
Journal of the Korean Radiological Society 2003;48(2):115-120
PURPOSE: To determine the significance of low signal intensity change in the anterior epidural space at sagittal T1-weighted (ST1WI) magnetic resonance imaging (MRI) of patients in whom discography revealed disc extrusion, and to correlate interruption of the solid dark line seen at sagittal T2-weighted imaging (ST2WI) with discographic findings of extrusion. MATERIALS AND METHODS: One hundred and forty-two patients (159 cases) with lumbar disc disease proven at MRI underwent discography. Disc extrusion was diagnosed in cases in which contrast media leaked into the anterior epidural space. The findings of ST1WI were used to determine whether low signal intensity change had occurred in the anterior epidural space between the posterior aspect of the vertebral body and the posterior longitudinal ligament, and whether ST2WI depicted interruption of the solid dark line at the posterior aspect of the disc was also assessed. RESULTS: At discography, disc extrusion was diagnosed in 134 of 159 cases. At ST1WI, low signal intensity change was noted in 75 (56%) of the 134 cases, and at ST2WI interruption of the solid dark line was observed in 63 (47%). In the remaining 25 cases, there was no evidence of disc extrusion, and at ST2WI the solid dark line was well-preserved. At ST1WI, 22 (88%) of 25 cases showed normal signal intensity in the anterior epidural space, but in the remaining three, low signal intensity change was evident. Correlation between the findings of MRI and discography was statistically significant. CONCLUSION: In disc disease, low signal intensity change at ST1WI, as well as interruption of the solid dark line seen at ST2WI, are useful indicators of disc extrusion.
Contrast Media
;
Epidural Space*
;
Humans
;
Longitudinal Ligaments
;
Magnetic Resonance Imaging*
4.A Case of Diffuse Neonatal Hemangiomatosis Successfully Treated with Propranolol
Seung Yeon JEONG ; Mee Jeong LEE ; Jeesuk YU
Clinical Pediatric Hematology-Oncology 2016;23(1):61-64
We present a case of a 41-day-old girl with diffuse hemangiomatosis on her chin, right thigh, occipital area, and liver. She also had hepatomegaly, heart failure, and hypothyroidism. Hemangiomatosis did not respond to 2 weeks of oral administration of prednisolone, but was successfully treated with propranolol. After 2 years of propranolol treatment, the lesions of hemangiomatosis nearly disappeared. Hypothyroidism was controlled by levothyroxine replacement. As hemangiomatosis regressed, thyroid function was normalized. Propranolol may have adverse effects including hypotension, hypoglycemia, bronchoconstriction, and restlessness, but she did not experience such adverse effects. Propranolol could be the first choice for diffuse neonatal hemangiomatosis (DNH). Our case also suggests that thyroid function test is needed in patient with DNH.
Administration, Oral
;
Bronchoconstriction
;
Chin
;
Female
;
Heart Failure
;
Hepatomegaly
;
Humans
;
Hypoglycemia
;
Hypotension
;
Hypothyroidism
;
Liver
;
Prednisolone
;
Propranolol
;
Psychomotor Agitation
;
Thigh
;
Thyroid Function Tests
;
Thyroid Gland
;
Thyroxine
5.Sonographic-Pathologic Correlation of Gallbladder Adenoma: Adenoma versus Adenoma with Dysplasia.
Young Tae KO ; Dong Ho LEE ; Joo Won LIM ; Yup YOON ; Seong Jin PARK ; Yu Mee JEONG ; Youn Wha KIM
Journal of the Korean Radiological Society 1995;33(3):383-387
PURPOSE: To correlate SOhographic and pathologic findings of gallbladder adenoma, and to evaluate the clinical significance of sonographic findings. MATERIALS AND METHODS: Ultrasound findings of twenty gallbladder adenomas were retrospectively reviewed to evaluate the size, shape and echogenicity of the adenoma, and was correlated with the pathological finding. RESULTS: Among 14 patients, 11 patients had single lesion and 3 patients had multiple lesions. Three patients showed 2, 3 and 4 adenomas, respectively. Nine of 20 lesions showed focal dysplasia pathologically. Among the nine adenomas with dysplasia, two adenomas showed focal cancerous change. The nine adenomas showing focal dysplasia measured 25.6mm (14-35mm) in mean diameter, while the mean diameter of adenomas without dysplasia was 8.7 mm (3-13mm). The echogenicity of adenoma with focal dysplasia were hyperechoic in 8, isoechoic in 1. The echogenicity of adenomas without dysplasia were hyperechoic in 7, isoechoic in 4. Sessile(7/9) and papillary shape(6/9) were predominant in adenoma with dysplasia, but smooth shape(8/11) and stalked type(9/11) were predominant in adenoma without dysplasia. Two adenomas with focal cancerous change showed histological transition from cancer to dysplasia and to adenomatous tissue. In adenoma with dysplasia, the diameter more than 14 mm on sonography was statistically significant (p<0. 005). Also age of patient was significantly different between the two groups (p<0.01), while echogenicity and associated stone were not statistically significant. CONCLUSION: As gallbladder adenoma more than 14ram in diameter on US is suggestive of dysplasia on pathology, so, close follow up US or surgery is recommended.
Adenoma*
;
Follow-Up Studies
;
Gallbladder*
;
Humans
;
Pathology
;
Retrospective Studies
;
Ultrasonography
6.Two Cases of Thin Basement Membrane Nephropathy presented with Minimal Change Nephrotic Syndrome.
Young Mee SEO ; Jae Gul CHUNG ; En Sil YU ; Jin Yeong JEONG ; Young Seo PARK
Journal of the Korean Pediatric Society 2000;43(7):978-982
Thin basement membrane nephropathy(TBMN) is defined histologically as follows: 1) By light rnicroscopy only minor abnormalities are detected in the glomeruli at most minor mesangial widening. 2) By electron microscopy, diffuse thinning of glomerular basement rnembrane is demonstrated. 3) By immunofluorescence, absence of immunoglobulins and complement components is demonstrated. 4) Alport's syndrome and systemic diseases that may affect the glomerular structure have been excluded. TBMN presented frequently with recurrent or persistent microscopic hematuria. Massive proteinuria such as in nephrotic syndrome rarely occurs in TBMN. We reported two cases of TBMN presented with typical minimal change nephrotic syndrome.
Basement Membrane*
;
Complement System Proteins
;
Fluorescent Antibody Technique
;
Hematuria
;
Immunoglobulins
;
Microscopy, Electron
;
Nephritis, Hereditary
;
Nephrosis, Lipoid*
;
Nephrotic Syndrome
;
Proteinuria
7.Recurrent pyogenic cholangitis: The pattern of thickening of the extrahepatic bile duct on CT.
Tae Hoon KIM ; Jae Hoon LIM ; Young Tae KO ; Dong Ho LEE ; Yu Mee JEONG ; Eil Seong LEE
Journal of the Korean Radiological Society 1993;29(3):453-456
The pattern of thickening of the extrahepatic bile duct on computed tomography was analysed in 30 cases with recurrent pyogenic cholangitis diagnosed by surgery (n=19) or clinical basis (n=11). The mean wall thickness of the extrahepatic bile duct was 3.3mm (range, 1-6.3mm). Diffuse thickening of the extrahepatic bile ductal wall was demonstrated in 26 of 30 cases. Diffuse thickening of the extrahepatic bile duct in recurrent pyogenic cholangitis may be differentiated from focal thickening of duct in a common duct cancer or pancreatic cancer.
Bile Ducts, Extrahepatic*
;
Cholangitis*
;
Pancreatic Neoplasms
8.Recurrent pyogenic cholangitis: The pattern of thickening of the extrahepatic bile duct on CT.
Tae Hoon KIM ; Jae Hoon LIM ; Young Tae KO ; Dong Ho LEE ; Yu Mee JEONG ; Eil Seong LEE
Journal of the Korean Radiological Society 1993;29(3):453-456
The pattern of thickening of the extrahepatic bile duct on computed tomography was analysed in 30 cases with recurrent pyogenic cholangitis diagnosed by surgery (n=19) or clinical basis (n=11). The mean wall thickness of the extrahepatic bile duct was 3.3mm (range, 1-6.3mm). Diffuse thickening of the extrahepatic bile ductal wall was demonstrated in 26 of 30 cases. Diffuse thickening of the extrahepatic bile duct in recurrent pyogenic cholangitis may be differentiated from focal thickening of duct in a common duct cancer or pancreatic cancer.
Bile Ducts, Extrahepatic*
;
Cholangitis*
;
Pancreatic Neoplasms
9.Efficacy of 4-Haptic Bitoric Intraocular Lens Implantation in Asian Patients with Cataract and Astigmatism
Yu Jeong KIM ; Won Ryang WEE ; Mee Kum KIM
Korean Journal of Ophthalmology 2019;33(1):36-45
PURPOSE: To determine the efficacy of 4-haptic bitoric intraocular lens (IOL) implantation in Asian patients with cataract and astigmatism. METHODS: A total of 19 eyes with ≤25.0 mm axial length and ≥0.75 diopters (D) corneal astigmatism were included in this prospective non-comparative study. All subjects underwent phacoemulsification with implantation of an AT Torbi 709M IOL. Visual and refractive outcomes as well as toric IOL axis were evaluated during a 3-month follow-up. Errors in predicted residual spherical equivalent were calculated by subtracting predicted residual spherical equivalent from postoperative refraction. RESULTS: Uncorrected and corrected distance visual acuity improved significantly 3 months after surgery, from 0.43 to 0.05 and from 0.24 to −0.05, respectively. Mean refractive cylinders also decreased significantly, from −1.91 preoperatively to −0.54 D 3 months after surgery. Mean J0 and J45 decreased 3 months postoperatively, from 0.26 to 0.03 D and from 0.24 to −0.06 D, respectively. After 3 months, mean absolute IOL rotation was 1.81°. Errors in predicted residual spherical equivalent showed a hyperopic shift of 0.35 D. CONCLUSIONS: Implantation of 4-haptic bitoric IOL proved to be effective for correcting astigmatism in Asian eyes during cataract surgery.
Asian Continental Ancestry Group
;
Astigmatism
;
Cataract
;
Follow-Up Studies
;
Humans
;
Lens Implantation, Intraocular
;
Lenses, Intraocular
;
Phacoemulsification
;
Prospective Studies
;
Visual Acuity
10.Expressed sequence tags analysis of Blattella germanica.
Hyang Suk CHUNG ; Tai Hyun YU ; Bong Jin KIM ; Sun Mi KIM ; Joo Yeong KIM ; Hak Sun YU ; Hae Jin JEONG ; Mee Sun OCK
The Korean Journal of Parasitology 2005;43(4):149-156
Four hundred and sixty five randomly selected clones from a cDNA library of Blattella germanica were partially sequenced and searched using BLAST as a means of analyzing the transcribed sequences of its genome. A total of 363 expressed sequence tags (ESTs) were generated from 465 clones after editing and trimming the vector and ambiguous sequences. About 42% (154/363) of these clones showed significant homology with other data base registered genes. These new B. germanica genes constituted a broad range of transcripts distributed among ribosomal proteins, energy metabolism, allergens, proteases, protease inhibitors, enzymes, translation, cell signaling pathways, and proteins of unknown function. Eighty clones were not well-matched by database searches, and these represent new B. germanica-specific ESTs. Some genes which drew our attention are discussed. The information obtained increases our understanding of the B. germanica genome.
Sequence Alignment
;
Reverse Transcriptase Polymerase Chain Reaction
;
Molecular Sequence Data
;
Male
;
Female
;
*Expressed Sequence Tags
;
Blattellidae/*genetics
;
Base Sequence
;
Animals