MRI Findings of Lipiodol Uptake in Hepatocellular Carcinomas: A Focus on Signal Intensity / 이화의대지

OBJECTIVES: To evaluate MRI findings of non-recurrent hepatocellular carcinomas with lipiodol uptake (LHCCs) treated with transarterial chemoembolization. METHODS: 28 LHCCs were divided into two groups according to amount of lipiodol uptake and tumor size, retrospectively. According to amount of lipiodol uptake, HCCs were classified into group A with dense lipiodol uptake (more than 90%) and group B with partial lipiodol uptake (between 50% and 90%). For HCC size analysis, group I was defined by a longest diameter of less than 2 cm, and group II was defined by a longest diameter of greater than or equal to 2 cm. RESULTS: In group A (n=16), eight LHCCs showed high signal intensity (SI) on T2-weighted images (T2WI), ten LHCCs showed low SI on T1-weighted imaged (T1WI), six LHCCs showed decreased SI at higher b value of diffusion-weighted images (DWI). In group B (n=12), six LHCCs revealed high SI on T2WI, six LHCCs revealed low SI on T1WI, ten LHCCs decreased SI at higher b value of DWI. As compared with tumor size and SI, six of 12 LHCCs in group I and eight of 16 LHCCs in group II showed high SI on T2WI. Six LHCCs in group I and ten LHCCs in group II showed low SI on T1WI. All LHCCs were not enhanced. CONCLUSION: Signal intensities of LHCCs were variable, but more than half of LHCCs showed high SI on T2WI, low SI on T1WI, decreased SI at higher b value of DWI, regardless of lipiodol uptake or tumor size.

Feasibility of Ultrasound-guided Fine Needle Aspiration Cytology Using Extended Tube for a Thyroid Mass / 대한내분비외과학회지

PURPOSE: Fine needle aspiration cytology (FNAC) is a very useful procedure for the diagnosis and management of thyroid disease. The use of FNAC has increased over the years. We determined the incidence of complications associated with ultrasound-guided FNAC using an extended tube for a thyroid mass and the factors that contribute to such complications. METHODS: A retrospective chart review was conducted to identify patients who underwent FNAC. Two hundred fifty-four patients underwent 325 procedures between July and September 2009. RESULTS: There were no major complications associated with ultrasound-guided FNAC using an extended tube for a thyroid mass. The most minor complication was neck pain, which occurred in 16.1% of the patients (41/254). Multiple FNACs, anti-coagulant medications, abnormal thyroid function tests, nature of the mass, and size of the mass did not contribute to the complications in this study. CONCLUSION: Using an extended tube during ultrasoundguided FNAC for a thyroid mass is safe and convenient.

A Case of Multicystic Renal Dysplasia with Chromosomal Abnormality / 대한주산의학회잡지

Holoprosencephaly is a rare and complex malformation affecting the cleavage of the developing forebrain and is usually associated with defects of the mid Face. We have experienced a case of holoprosencephaly, diagnosed prenatally by ultrasound examination at 31 weeks of pregnancy in a 31-year-old primigravida woman. This case is characterized by holoprosencephaly, cleft palate, cleft lip, left renal aplasia and right renal hypertrophy. The chromosomal study showed a deletion of the long arm of chromosome 7, 46, XX, del(7)(q32), We report with a terminal deletion of chromosome 7q associated with atypical clinical picture and holoprosencephaly.