1.The effect of granulocyte colony stimulating facto(G-CSF) in a patient with propylthiouracil-induced agranulocytosis.
Kwang Hyen YOU ; Seung Si SON ; Seung Yel SONG ; Myoung Seon PARK ; Yong Gu LEE ; Chung Gu CHO
Journal of Korean Society of Endocrinology 1993;8(3):347-350
No abstract available.
Agranulocytosis*
;
Granulocytes*
;
Humans
2.Malignant Tenosynovial Giant Cell Tumor Presenting as an Extra-Articular Superficial Soft-Tissue Mass in a Knee
Jimin LEE ; In Sook LEE ; You Seon SONG ; Jeung Il KIM ; Kyung Un CHOI
Journal of the Korean Radiological Society 2022;83(2):406-413
Malignant tenosynovial giant cell tumor (TsGCT) is a rare disease that can arise as a recurrent lesion or co-exist with a benign TsGCT lesion. Here we report a rare case of malignant TsGCT in a 73-year-old male with a history of lymphoma. The tumor appeared as a superficial soft-tissue mass in the subcutaneous fat tissue of the left knee.
3.Subperiosteal Osteoid Osteoma of the Knee: Case Report.
Hie Bum SUH ; In Sook LEE ; Seung Joon RHEE ; You Seon SONG ; Jong Woon SONG
Investigative Magnetic Resonance Imaging 2016;20(1):61-65
Osteoid osteoma, a frequent lesions of bone, is usually intraosseous but occasionally subperiosteal. We describe the case of a 19-year-old male with knee pain caused by subperiosteal osteoid osteoma. Radiologic evaluation was performed with radiographic, computed tomography (CT), ultrasonographic (US) and magnetic resonance imaging (MRI). But the preoperative diagnosis of osteoid osteoma was delayed because of unusual imaging findings and atypical symptom. After excisional biopsy, histological examination confirmed the diagnosis of osteoid osteoma. The lesion was treated successfully with CT-guided radiofrequency ablation.
Biopsy
;
Catheter Ablation
;
Diagnosis
;
Humans
;
Knee*
;
Magnetic Resonance Imaging
;
Male
;
Osteoma, Osteoid*
;
Young Adult
4.Magnetic Resonance Imaging Findings of Early Spondylodiscitis: Interpretive Challenges and Atypical Findings.
Jeong A YEOM ; In Sook LEE ; Hie Bum SUH ; You Seon SONG ; Jong Woon SONG
Korean Journal of Radiology 2016;17(5):565-580
MR findings of early infectious spondylodiscitis are non-specific and may be confused with those of other conditions. Therefore, it is important to recognize early MR signs of conditions, such as inappreciable cortical changes in endplates, confusing marrow signal intensities of vertebral bodies, and inflammatory changes in paraspinal soft tissues, and subligamentous and epidural spaces. In addition, appreciation of direct inoculation, such as in iatrogenic spondylodiscitis may be important, because the proportion of patients who have undergone recent spine surgery or a spinal procedure is increasing. In this review, the authors focus on the MR findings of early spondylodiscitis, atypical findings of iatrogenic infection, and the differentiation between spondylodiscitis and other disease entities mimicking infection.
Bone Marrow
;
Discitis*
;
Epidural Space
;
Humans
;
Magnetic Resonance Imaging*
;
Spine
5.Calcifying Aponeurotic Fibroma of the Knee: a Case Report with Radiographic and MRI Finding.
Seung Hyun LEE ; In Sook LEE ; You Seon SONG ; Kyung Un CHOI ; Jeung Il KIM ; Jong Woon SONG
Investigative Magnetic Resonance Imaging 2017;21(4):259-263
Calcifying aponeurotic fibroma (CAF) is an uncommon benign tumor and a locally aggressive fibroblastic lesion. It commonly affects the palmar side of the hand and fingers, and the soles of the feet. The typical clinical manifestations are known as a poorly circumscribed, slow-growing, and asymptomatic firm mass. Most CAFs usually reveal low to intermediate or isointensity on T1-weighted images, and strong heterogeneous enhancement. However, various signal intensities on T2-weighted images have been reported depending on the degree of hypocellularity or the amount of calcification or collagen within the tumor. This report provides the radiographic and MRI finding of CAF arising in uncommon site, the knee region, of a 19-year-old male who presented with a painful and palpable mass.
Collagen
;
Fibroblasts
;
Fibroma*
;
Fingers
;
Foot
;
Hand
;
Humans
;
Knee*
;
Magnetic Resonance Imaging*
;
Male
;
Young Adult
6.Eosinophilic Pustular Folliculitis Involving Labial Mucosa, Which Improved with Naproxen.
Seon Pil JIN ; Song Youn PARK ; Kkot Bora YEOM ; You Chan KIM ; Kwang Hyun CHO
Annals of Dermatology 2013;25(1):120-122
No abstract available.
Eosinophilia
;
Eosinophils
;
Folliculitis
;
Mucous Membrane
;
Naproxen
;
Skin Diseases, Vesiculobullous
7.Eosinophilic Pustular Folliculitis Involving Labial Mucosa, Which Improved with Naproxen.
Seon Pil JIN ; Song Youn PARK ; Kkot Bora YEOM ; You Chan KIM ; Kwang Hyun CHO
Annals of Dermatology 2013;25(1):120-122
No abstract available.
Eosinophilia
;
Eosinophils
;
Folliculitis
;
Mucous Membrane
;
Naproxen
;
Skin Diseases, Vesiculobullous
8.A Rare Manifestation of Solitary Primary Bone Lymphoma of the Finger: a Case Report
Jeong A YEOM ; You Seon SONG ; In Sook LEE ; Kyung Un CHOI ; Jeung Il KIM
Investigative Magnetic Resonance Imaging 2018;22(4):240-244
Primary extranodal bone lymphoma involving the peripheral extremities is extremely rare. Here, we report a definitive case of diffuse large B-cell lymphoma involving the phalangeal bone of the 3rd finger. Systemic evaluation revealed the lesion as the only site of lymphoma involvement.
Extremities
;
Fingers
;
Lymphoma
;
Lymphoma, B-Cell
9.Distinguishing CT and MR Imaging Features of Postprocedural Inflammation and Infectious Spondylodiscitis After Intradiscal Electrothermal Therapy
Yea Hee JI ; In Sook LEE ; You Seon SONG ; Kyoung Hyup NAM ; Dong Hwan KIM ; Kyung Un CHOI
Investigative Magnetic Resonance Imaging 2023;27(3):133-141
Purpose:
To investigate whether the signal or morphological changes in the adjacent bone or soft tissue after intradiscal electrothermal therapy (IDET) occur due to postprocedural inflammation or infectious spondylodiscitis.
Materials and Methods:
Ten patients (female:male = 5:5; age range, 18–71 years; mean age: 36.5 years) who underwent lumbar IDET between January 2018 and December 2020 and complained of fever or pain were included in this study. The presence and extent of bone marrow and paraspinal soft tissue signal changes were evaluated using the first follow-up magnetic resonance imaging (MRI) after IDET. Signal changes in the treated discs and the presence and extent of epidural enhancement were evaluated. Additionally, we investigated the presence and margins of subchondral erosions in the vertebral body.
Results:
Two radiologists analyzed the imaging findings by consensus. Six patients were diagnosed with postprocedural inflammation and four with infectious spondylodiscitis, which was confirmed by specimen culture after surgery. All 10 patients showed signal changes in the bone marrow of the vertebral bodies adjacent to the treated disc. Signal changes in the paraspinal soft tissue were observed in only five patients: three with infectious spondylodiscitis and two with postprocedural inflammation. In six patients with postprocedural inflammation, subchondral erosions had well-defined margins with a sclerotic rim and in four patients with infectious spondylodiscitis, subchondral erosions had ill-defined margins. Epidural enhancement showed an extensive pattern in all cases of infectious spondylodiscitis and localized patterns in cases of postprocedural inflammation.
Conclusion
MRI or computed tomography findings of well-defined subchondral erosions with a sclerotic rim and more localized signal changes in the paraspinal soft tissue or epidural space might aid in the differentiation of infectious spondylodiscitis and postprocedural inflammation in patients who underwent IDET.
10.Treatment of Enchondroma in the Hands and Feet
Jeung Il KIM ; Kyung Un CHOI ; In Sook LEE ; You Seon SONG ; Jae Yoon JEONG
The Journal of the Korean Orthopaedic Association 2020;55(2):162-168
Purpose:
The purpose of this study was to suggest an appropriate treatment method by comparing nonsurgical treatment and surgical treatment for enchondroma in the hands and feet.
Materials and Methods:
Seventy four cases with enchondroma of the hands and feet from January 1996 to March 2017 were selected to evaluate the functional outcomes. Thirty cases were treated with nonsurgical treatment, and 44 cases were treated with surgical treatment, such as curettage only or curettage with a bone graft. The mean follow-up period was 18.1 months. The functional results were analyzed using the Wilhelm and Feldmeier formula.
Results:
The mean age was 38 years, and the age range was between eight and 69 years. According to the Wilhelm and Feldmeier formula, the mean score of hand enchondroma was 3.09±0.85 and 3.20±0.91 in the non-operative and operative group, respectively. The mean scores of the foot except for the grip strength were 2.57±0.79 and 2.75±0.50, respectively. No significant difference was observed according to the functional results. Among the 18 cases of enchondroma with pathological fractures, nine cases were treated non-surgically and nine cases were treated by surgically. In all 18 cases, complete bone healing was observed at the final follow-up.
Conclusion
Relatively satisfactory results were obtained in both surgical and nonsurgical treatment and there was no significant difference in functional outcomes. In cases of enchondroma in the hands and feet, nonsurgical treatment can also be a good treatment option.