Jee Young Kim

• Myongji Hospital

Backgrounds: To improve the outcomes of acute ischemic stroke (AIS) patients, a well-organized triage system is essential in the emergency room (ER). This study aimed to assess the detection performance of a deep learning triage research application for AIS that was newly developed based on brain MRI in the ER. Methods: This retrospective study con...

Background Mounting evidence suggests that perivascular spaces (PVSs) visible at MRI reflect the function of the glymphatic system. Understanding PVS burden in neonates may guide research on early glymphatic-related pathologic abnormalities. Purpose To perform a visual and volumetric evaluation of PVSs that are visible at MRI in neonates and to eva...

Objective: To determine the sensitivity and specificity of cutaneous amyloid deposition in relation to patient-reported measures in the earliest disease stage of hereditary ATTR amyloidosis (ATTRv). Methods: In a cross-sectional study, we analyzed 88 individuals with TTR mutations, 47 of whom were in the earliest disease stage and without clinic...

Purpose The purpose of this study was to compare the image quality of the 3D T2-weighted images accelerated using conventional method (CAI-SPACE) with the images accelerated using compressed sensing (CS-SPACE) in pediatric brain imaging. Methods A total of 116 brain MRI (53 with CAI-SPACE and 63 with CS-SPACE) were obtained from children 16 years...

Purpose To investigate the feasibility of using 3-dimensional MRF for bone marrow evaluation in the field of view of prostate MRI for T1 and T2 quantification of prostate cancer bone metastases, as well as comparing it to the ADC value Methods In this retrospective study, 30 prostate MRIs were included: 14 cases with prostate cancer bone metastasi...

High-altitude cerebral edema (HACE) is a potentially fatal neurological syndrome that develops in persons traveling to a high altitude. We report the case of a 49-year-old male who had traveled to a high altitude, and lost consciousness for a few hours. Susceptibility-weighted images revealed multiple, fine black pepper like microbleeds along the c...

Purpose of review: This article provides an up-to-date assessment of the role of skin biopsy in the evaluation of autonomic disorders. The standard methodology for completing a skin biopsy, the anatomic structures of interest detected within a skin biopsy, and the disease states in which skin biopsies may provide valuable information are reviewed....

The common pathological features of synucleinopathies are abnormal aggregates of the synaptic protein alpha-synuclein (αSN) in the cytoplasm of neurons or glia. These abnormal aggregates appear several years before the onset of clinical manifestations, and so the early detection of αSN in body fluids or peripheral tissues (e.g., cerebrospinal fluid...

Background: Chronic migraine (CM) is associated with severe psychological symptoms and disabilities. Information on the relationship between stress and the outcomes of acute CM treatment is limited. Methods: We evaluated the clinical presentation and stress levels of patients with CM who visited the neurology departments of 14 hospitals between...

A 74-year-old man presented with right ocular pain and diplopia. Contrast enhanced orbital computed tomography showed a bulging mass with homogenous density and mild homogeneous enhancement, at the right medial rectus muscle belly. Magnetic resonance imaging of the orbit showed a bulging mass along the medial rectus muscle, with superiorly displace...

Extra-articular diffuse-type tenosynovial giant cell tumor (TSGCT), especially arising from the pes anserine bursa, is a rare lesion. Only one case of extra-articular diffuse-type TSGCT of the pes anserine bursa that showed bone erosion as an imaging finding has been reported. Here, we report our experience of an exceptional case of extra-articular...

Charcot-Marie-Tooth disease type 1E (CMT1E) is a demyelinating motor and sensory neuropathy with peripheral myelin protein 22 (PMP22) point mutations. The objective of this study was to identify genetic causes and determine genotype–phenotype correlation in two Korean demyelinating CMT patients based on whole exome sequencing (WES), histological ex...

Background Extramedullary relapse (EMR) is a recurrence of leukemia in sites other than the bone marrow, and it exhibits a relatively rare presentation of relapse of acute leukemia. However, EMR is an important cause of treatment failure among patients with acute leukemia. Therefore, early detection of these relapses may improve the prognosis. Obj...

Background: While fine-needle aspiration cytology (FNAC) using conventional smear has been widely accepted as the primary diagnostic tool for thyroid lesions, liquid-based preparations (LBPs) are increasingly replacing it. A new automated LBP method, EASYPREP(®) (EP), was recently introduced and has shown relevant diagnostic efficacy in gynecologi...

Introduction: Infantile hemangiomas of the airway are diagnosed at bronchoscopy as part of the investigation of stridor or other respiratory symptoms. Here, we present three-dimensional computed tomography (3D-CT)/bronchoscopy findings of submucosal subglottic hemangioma missed at bronchoscopy. Case presentation: We report on the clinical useful...

A 29-year-old woman with systemic lupus erythematosus (SLE) presented with palpitation and neck swelling. Initial sonography showed an ill-defined hypoechoic lesion in the right thyroid gland, mentioning subacute thyroiditis. The patient received conservative care for one week. However, her neck swelling worsened and she complained of dyspnea. Foll...

Goiter is frequently the first indicator of thyroid disease in children. To evaluate the usefulness of ultrasonography (US) in the identification of potential malignant nodules and autoimmune thyroiditis in children with diffuse goiter. This study consisted of 113 patients <20 years with a diffuse goiter who underwent thyroid US. Parenchymal echoge...

Sound to meaning correspondences in spoken language are assumed to be largely arbitrary. However, research has identified a number of exceptions to the arbitrariness assumption. In particular, non-arbitrary mappings between sound and shape, the bouba/kiki effect, have been documented across diverse languages and both children and adults are sensiti...

The aim of this study was to evaluate the changing pattern and prognostic values of diffusion-weighted imaging (DWI) at two time points in cardiac arrest patients treated with therapeutic hypothermia. Twenty two patients with cardiac arrest who underwent two DWI studies were enrolled in the retrospective study. The first DWI was performed after the...

Acute myelitis patients exhibiting only sensory deficits upon initial presentation are not commonly encountered in clinical practice, but they definitely exist. Since acute sensory myelitis has not been investigated previously, this study evaluated the etiological spectrum of the condition with the aim of describing the clinical characteristics the...

The purpose of this study was to evaluate the clinical usefulness of readout-segmented echo-planar imaging (rs-EPI) in the diagnosis of acute infarction of the brainstem and posterior fossa, by comparing its results with those of single-shot echo-planar imaging (ss-EPI) at 3-T magnetic resonance imaging. Twenty-nine patients with acute infarctions...

Giant cell tumor (GCT) of bone is an uncommon primary neoplasm that rarely occurs in the skull. The sphenoid and temporal bones are common sites in the skull for these tumors. GCTs of the temporal bone usually grow with medial extension and induce reactive bone changes. In this article, we describe a case of GCT presenting as a bulging preauricular...

Systemic lupus erythematosus (SLE) is an autoimmune disease that is a significant source of morbidity and mortality when it manifests in the central nervous system. The early detection and treatment of neuropsychiatric SLE (NPSLE) is very important, but a confirmative diagnostic tool has yet to be developed.

Schwannomas arising from the oral cavity are rare, and reports of their imaging features are scarce in the literature. We report two cases of schwannomas involving the oral cavity and describe their computed tomography, magnetic resonance imaging, and ultrasonography findings.

The natural course of cytologically benign thyroid nodules remains unclear. The aim of this study was to evaluate whether ultrasonographic (US) changes are associated with changes in nodule volume during follow-up. We retrospectively reviewed over 4 years of clinical records of patients with benign thyroid nodules as confirmed by fine needle aspira...

Aspergillosis of the skull base is an unusual disease entity, mainly found in immunocompromised patients. Aspergillosis originating in the pterygopalatine fossa (PPF) without contiguous spread from the sinuses is extremely rare. A 79-year-old woman complained of having suffered pain in her left cheek and headaches for 4 months. Computed tomography...

X-linked bulbospinal muscular atrophy (X-BSMA) is characterized by bulbar and spinal muscular weakness and fasciculations. Although X-BSMA is a motor neuronopathy, there are several reports of myasthenic symptoms or decremental responses to repetitive nerve stimulation (RNS). We report the results of applying the RNS test to 15 patients among 41 wi...

Charcot-Marie-Tooth disease (CMT) is clinically heterogeneous hereditary motor and sensory neuropathies with genetic heterogeneity, age-dependent penetrance, and variable expressivity. Rare copy number variations by nonrecurrent rearrangements have recently been suggested to be associated with Charcot-Marie-Tooth 1A (CMT1A) neuropathy. In our previ...

The prognosis of myasthenia gravis (MG) has improved dramatically due to advances in critical-care medicine and symptomatic treatments. Its immunopathogenesis is fundamentally a T-cell-dependent autoimmune process resulting from loss of tolerance toward self-antigens in the thymus. Thymectomy is based on this immunological background. For MG patien...

Epilepsia partialis continua (EPC) is clinically defined as a syndrome of continuous focal jerking of a body part, usually a distal limb, occurring over hours, days, or even years. It is considered the status epilepticus equivalent of simple partial motor seizures. A 48-year-old right-handed man with a history of traumatic intracranial hemorrhage w...

Chondromyxoid fibroma is a rare benign primary bone tumor of cartilage. Despite a characteristic radiographic appearance, chondromyxoid fibroma with atypical radiographic findings may mimic more common tumors. To describe the MR findings of chondromyxoid fibroma. MR images of 19 histopathologically confirmed chondromyxoid fibromas were retrospectiv...

Amyotrophic lateral sclerosis (ALS) patients display easy fatigability and abnormal decrements on repetitive nerve stimulation (RNS) test of clinically involved limb muscles, which can result in ALS being misdiagnosed as myasthenia gravis. We retrospectively analyzed the RNS tests of ten ALS patients with only or predominant oropharyngeal symptoms...

Myofibrillar myopathies (MFMs) are a genetically or clinically heterogeneous group of diseases that are characterized by focal myofibrillar dissolution associated with accumulation of myofibrillar degradation products and ectopic expression of multiple proteins. Since MFMs show morphologically distinct features but consist of genetically and clinic...

The objective of this study was to investigate the effects of gamma irradiation on changes in oleic acid of methyl oleate as well as of beef and olive oil. The samples were irradiated at doses ranging from 0 to 60kGy and the fatty acid composition was then analyzed by GC–FID and GC–MS. Gamma irradiation upon methyl oleate induced the formation of t...

Inter- and intraobserver variabilities in the description and diagnostic categorization of sonographic (US) features of thyroid nodules were evaluated. The current study was conducted on 72 malignant nodules and 61 benign nodules. The US findings for each thyroid nodule were analyzed twice at a 6-week interval by five radiologists. The analyses wer...

Papillary thyroid carcinoma with nodular fasciitis-like stroma (PTC-NFS) is an extremely rare variant of papillary thyroid carcinoma characterized by prominent stromal cell proliferation. To our knowledge, sonographic findings of PTS-NFS have not been reported. Here, we report a case of PTC-NFS that presented as a homogenous and hypoechoic mass in...

To evaluate the interobserver variability and performance in the interpretation of ultrasonographic (US) findings of thyroid nodules. 72 malignant nodules and 61 benign nodules were enrolled as part of this study. Five faculty radiologists and four residents independently performed a retrospective analysis of the US images. The observers received o...

The aim of this study was to examine whether the patterns of diffusion-weighted imaging (DWI) abnormalities and quantitative regional apparent diffusion coefficient (ADC) values can predict the clinical outcome of comatose patients following cardiac arrest. Thirty-nine patients resuscitated from out-of-hospital cardiac arrest were prospectively inv...

Consumer perception of processed food and restaurant food's nutrient labelling was surveyed. The subjects of this survey consisted of 1,507 parents, whose ages were 20-59 years old. The ratio of the respondents that have known nutrition labelling on processed foods was 89.8% and the ratio of whom have checked the nutrition labelling at their point...

Now a days, people eat outside of the home more and more frequently. Menu labeling can help people make more informed decisions about the foods they eat and help them maintain a healthy diet. This study was conducted to develop menu labeling system using Nutri-API (Nutrition Analysis Application Programming Interface). This system offers convenient...

Recent advances in MRI have revealed congenital brain malformations and subtle developmental abnormalities of the cerebral and cerebellar cortical architecture. Typical cerebellar cortical dysplasia as a newly categorized cerebellar malformation, has been seen in patients with Fukuyama congenital muscular dystrophy. Cerebellar cortical dysplasia oc...

Amyloidosis is a slowly progressive, benign disease that is characterized by the extracellular deposition of fibrillar proteins in many different tissues and organs throughout the body. Primary amyloidosis can be subdivided into the systemic and localized forms. The localized form is less common than the systemic form and the larynx is the most fre...

Synovial chondrosarcoma is extremely rare and arises de novo or from malignant transformation of synovial chondromatosis. It commonly involves large joints, such as the knee or hip. Here, we present an unusual case of synovial chondrosarcoma from synovial chondromatosis in the hand and wrist, clearly demonstrating the characteristic findings on pla...

The aim of this study is to evaluate the MR imaging features of patients with external snapping hip syndrome.

Musculoskeletal sarcoma metastasizes to various sites in the body. The most common metastsis site is the lung, followed less frequently by the skeleton, brain, intra-abdominal organs, lymph node, and pleura. The metastasis of musculoskeletal sarcoma showed various manifestations, which was seen as a nonspecific finding. Metastatic lesions display s...

Melorheostosis is a rare bone dysplasia of unknown etiology that usually affects a single limb and is characterized by cortical thickening, with a flowing candle wax appearance, extending vertically along the surface of the long bone. We report a case of polyostotic melorheostosis symmetrically involving multiple flat bones, ribs, and the scapulas....

A 40-year-old man with chronic hepatitis B complained of progressive weakness of the proximal muscles and edema of both legs. He had been receiving long-term clevudine (nucleoside analogue reverse transcriptase inhibitor, NRTI) therapy for his hepatitis. The serum creatine kinase level was increased on the laboratory tests. His electromyography sho...

Cervical lymph node metastases are quite common in papillary thyroid cancer (PTC) and they usually spread in a contiguous fashion. However, "skip metastasis," defined as lateral lymph node metastasis without central lymph node metastasis, also occurs in patients with PTC. There is little information regarding skip metastasis in papillary thyroid mi...

Mannitol is a xenobiotic commonly used for the control of brain edema in patients with brain tumors. Although not typically identifiable with the use of routine proton magnetic resonance spectroscopy (MRS), we report a case where the mannitol peak was clearly visible on the MR spectra of a recurrent meningioma.

In this study, we evaluated MR imaging findings of skin tumors and categorized them into four types: (1) discrete mass lesions of the dermis and epidermis, (2) mass lesions of the subcutis with or without abutment to the skin, (3) diffuse or localized skin thickening without a true mass, and (4) a skin mass with bone destruction. The categorization...

The purpose of this article is to describe the image findings of distant metastases to skeletal muscle with clinical correlation. The records of nine consecutive patients with biopsy-proven metastases to skeletal muscle from primary malignancies were retrospectively reviewed for clinical history and findings from magnetic resonance imaging (MRI) (e...

A B-cell activating factor of the tumor necrosis factor (TNF) family (BAFF) is an essential B-cell survival factor. Myasthenia gravis (MG) is one of the most typical antibody-mediated autoimmune disorders. To test whether serum BAFF levels are increased in MG patients, we compared the serum BAFF levels of 40 MG patients with those of 30 healthy con...

The co-occurrence of multiple sclerosis and peripheral demyelinating neuropathy is rare. It has been disputed whether these are pathologically related or coincidental findings. We report a 36-year-old woman who presented with diplopia, right facial palsy and left-sided weakness. Brain magnetic resonance imaging showed a lesion indicative of central...

The purpose of this series was to describe the sonographic features of dermatofibrosarcoma protuberans (DP) and correlate them with the pathologic findings of this condition. The echogenicity and marginal contour of DP in 4 patients were observed on sonography, and these features were then correlated with the cellular components and histologic grad...

Few reports exists citing a case of a retropharyngeal bronchogenic cysts. In this study, we report a bronchogenic cyst with a cystic appearance observed in the retropharyngeal space.

The onset of pregnancy may predispose women to a variety of neurological diseases due to changes in their hemodynamics, hormonal effects, and complications associated with childbirth. The spectrum of neurological disorders associated with pregnancy and childbirth include hypertensive intracerebral hemorrhaging, posterior reversible encephalopathy s...

Glomerulonephritis and pulmonary hemorrhage are features of Goodpasture's syndrome. Goodpasture's syndrome accompanied with central nervous system (CNS) vasculitis is extremely rare. Herein, we report a rare case of CNS vasculitis associated with Goodpasture's syndrome in a 34-year-old man, who presented with a seizure and sudden onset of right sid...

Women with epilepsy (WWE) tend to have hormonal and metabolic abnormalities, raising concerns about an increased risk of cardiovascular disorders. This study was performed to determine whether epilepsy itself and/or antiepileptic drug (AED) medication cause metabolic abnormalities. WWE in premenopausal state aged 18 to 45 years old, currently on AE...

Although pilomatricoma commonly occurs in children, there is still a poor understanding of the imaging characteristics of pilomatricoma and lack of agreement regarding its imaging findings and histopathologic features. To characterize the radiologic appearance of pilomatricomas on US, CT, and MR and to correlate the imaging findings with histopatho...

To analyze the ultrasonographic (US) findings of thyroid nodules that yielded false negative results after an initial ultrasound-guided fine needle aspiration biopsy (FNAB).

A large variety of masses occur in the foot. The foot is a comparatively rare site of soft tissue neoplasms. MRI has greatly improved the ability to detect and delineate soft tissue lesions and is now considered the gold-standard imaging technique in their investigation. Recently, we have encountered rare soft tissue tumors of the foot. The present...

Lipomas can occur in any soft tissue, including that found in bone. Although it is known that most lipomas are restricted to the involved compartment, we found some lipomas that herniated across the compartment barrier. Here, we report 3 cases of a herniated soft tissue lipomatous tumor. Radiological findings of the herniated lipomas indicated the...

Cortical metastasis usually occurs in the diaphysis of the long bones with the appearance of a cookie-bite pattern; this is associated with cortical destruction extending into the soft tissue as well as into the medullary cavity, or there can be a periosteal reaction. We report here on a 66-year-old woman who was diagnosed with intracortical metast...

Chondrosarcomas are malignant tumors of the cartilage that rarely involve the sinonasal region. Here, we describe a case of histologically verified naso-sinus chondrosarcoma in a 40-year-old female presenting with nasal stuffiness and anosmia. The tumor presented on computed tomography (CT) as an expanding soft tissue mass with bone destruction and...

The recent therapeutic advances for treating hematologic neoplasm have improved patients' survival, but these treatments have increased the frequency of neurologic complications and toxic effects. Most of the neurological features of leukemia are divided into three main categories: the primary effects of the disease, the treatment-related side effe...

We wanted to measure the vascular pedicle width (VPW) in normal Korean adults and correlate the VPW with the body physique and we also wanted to establish the index for normal VPWs, which could be utilized in reading chest PAs.

The normal uptake and biodistribution patterns of F-18 fluorodeoxyglucose (FDG), as well as the physiological variants and benign pathologic conditions of FDG accumulation, should be recognized to identify malignant neoplasms or metastatic diseases. The authors describe the incidental uptake of FDG in the diaphragm, the crura, the tongue base, and...

LEARNING OBJECTIVES 1. To understand the imaging findings of ultrasonography and MR of the various skin lesions. 2. To discuss the benefit and drawback of each ultrasonography and MR in the evaluation of skin lesions. ABSTRACT Skin is composed of two tissues: superficially, keratinized stratified squamous epithelium, the epidermis, and a deeper la...

Women with epilepsy(WWE) are at risk for reproductive and metabolic disorders. This study was performed to investifate whether WWE are more likely to have menstual or metabolic abnormalities, and whether some antiepileptic drugs(AEDs) more likely provoke those problems.

Although most patients with jejunoileal diverticulum are asymptomatic, a large, small-bowel diverticulum can be associated with midgut volvulus in an adult. We present a rare case of midgut volvulus that was associated with a large, small-bowel diverticulum in a 77-year-old woman presenting with chronic recurrent abdominal pain. The CT showed the c...

Traumatic carotid-cavernous fistula frequently results in proptosis on the side of the fistula by retrograde drainage from the cavernous sinus to the superior ophthalmic vein. The involvement of the opposite orbit is due to the presence of connections between the cavernous sinuses on both sides, but exclusive contralateral orbit involvement is rare...

This article describes the characteristic imaging findings and correlates them with the pathology in the nonfatty regions of benign atypical lipomatous tumors, which have different findings compared with typical lipomas and well-differentiated liposarcomas. For differentiating these tumors from typical lipomas and well-differentiated liposarcomas,...

Four different kinds of chitosans were prepared by treating crude chitin with various NaOH concentrations. The antimicrobial activities of the chitosans were tested against four species of food spoilage microorganisms (Lactobacillus plantarum, Lactobacillus fructivorans, Serratia liquefaciens, and Zygosaccharomyces bailii). The initial effect of th...

PURPOSE: To evaluate the characteristic MRI findings of pubic insufficiency fracture. MATERIALS AND METHODS: In nine cases of pubic insufficiency fracture, the findings of plain radiography (n=9), MRI (n=9), and bone scintigraphy (n=8) were reviewed. We retrospectively analyzed, with regard to fracture site, the destructive pattern revealed by pla...

PURPOSE: To determine the extent to which magnetic resonance(MR) imaging findings can help differentiate between tuberculous arthritis (TA) and rheumatoid arthritis(RA). MATERIALS AND METHODS: This study involved sixteen patients with pathologically proven arthritis of the knee. In eight patients(mean age, 29.6 years; M:F=4:4) this was of the tube...

We describe a case of inflammatory pseudotumor involving the anal sphincter complex, and its ultrasonographyand MR imaging features. Transperineal ultrasonography showed a well-marginated ovoid low echoic lesionintermingled with sparse echogenic foci within the right anal sphincter complex. The lesion was of intermediatesignal intensity on T1-weigh...

PURPOSE: To describe the findings of magnetic resonance imaging in infectious myositis and to determine theirvalue for differentiation between tuberculous and bacterial myositis. MATERIALS AND METHODS: Magnetic resonanceimages of ten proven cases of infectious myositis, (five tuberculous and five bacterial) were retrospectivelyreviewed in the ligh...

PURPOSE: To assess the MR findings of symptomatic osteochondromas. MATERIALS AND METHODS: We evaluated 31patients who between July, 1994 and May, 1997 underwent MR imaging for symptomatic osteochondroma. Fourteen were males and 17 were females, and their ages ranged from 8 to 49(mean, 23) years. Using T1WI, T2WI andgadolinium-DTPA-enhanced T1WI, i...

We performed a study to determine whether clinical history gives a positive or negative influence on X-ray film interpretation. One hundred and nine patient's radiograms, consisting of 55 normal and 54 abnormal cases (136 abnormalities), were interpreted twice by three pairs of residents in radiology and a pair of qualified radiologists, without cl...

PURPOSE/AIM To demonstrate imaging tissue characterization of the benign soft tissue tumors in the digit on MR imaging and plain radiograph CONTENT ORGANIZATION The digit is a relatively uncommon site of soft tissue tumors. Most soft tissue tumors in the digit are benign and these tumors are occasionally associated with change of surrounding bone....