1.A Case of Intrahepatic Cholangiocarcinoma in Polycystic Liver Disease.
Jin Hee SON ; So Young KWON ; Song Wuk SONG ; Ju Hyup YUM ; Jae Min KO ; Myung Soo AHN ; Kyung Woo CHOI ; Hee Jin CHANG
The Korean Journal of Hepatology 1999;5(2):156-161
Cholangiocarcinoma has been associated with various fibrocystic diseases of liver and biliary tract, but cholangiocarcinoma in polycystic liver disease (PLD) was extremely rare. It was reported that the prognosis of cholangiocarcinoma associated PLD was very poor and distant metastases were common. We report a rare case of intrahepatic cholangiocarcinoma associated with PLD in 58- year- old female who presented vague abdominal pain. She had also polycystic kidneys with normal renal function. MRI showed well demonstrated tumor with central scar and a adjacent large cyst in the left lobe of the liver. She underwent extended left lobectomy. On microscopic examination, the tumor was moderately differentiated cholangiocarcinoma having abundant fibrous stroma and necrosis and the adjacent cyst showed focal in situ carcinomatous changes in the lining epithelium.
Abdominal Pain
;
Biliary Tract
;
Cholangiocarcinoma*
;
Cicatrix
;
Epithelium
;
Female
;
Humans
;
Liver Diseases*
;
Liver*
;
Magnetic Resonance Imaging
;
Necrosis
;
Neoplasm Metastasis
;
Polycystic Kidney Diseases
;
Prognosis
;
Cholangiocarcinoma
2.Comparison of Radiologic Outcomes of Different Methods in Single-Level Anterior Cervical Discectomy and Fusion.
O Ik KWON ; Dong Wuk SON ; Sang Weon LEE ; Geun Sung SONG
Korean Journal of Spine 2016;13(3):91-96
OBJECTIVE: Anterior cervical discectomy and fusion (ACDF) is a choice of surgical procedure for cervical degenerative diseases associated with radiculopathy or myelopathy. However, the patients undergoing ACDF still have problems. The purpose of the present study is to evaluate the radiologic results of 3 different methods in single-level ACDF. METHODS: We conducted a retrospective collection of radiological data from January 2011 to December 2014. A total of 67 patients were included in this study. The patients were divided into 3 groups by operation procedure: using stand-alone cage (group cage, n=20); polyether-ether-ketone (PEEK)-titanium combined anchored cage (group AC, n=21); and anterior cervical cage-plate (group CP, n=26). Global cervical lordosis (C2-C7 Cobb angle), fused segment height, fusion rate, and cervical range of motion (ROM) were measured and analyzed at serial preoperative, postoperative, 6-month, and final 1-year follow-up. RESULTS: Successful bone fusion was achieved in all patients at the final follow-up examination; however, the loss of disc height over 3 mm at the surgical level was observed in 6 patients in group cage. Groups AC and CP yielded significantly better outcomes than group cage in fused segment height and cervical ROM(p=0.01 and p=0.02, respectively). Furthermore, group AC had similar radiologic outcomes to those of group CP. CONCLUSION: The PEEK-titanium combined anchored cage may be a good alternative procedure in terms of reducing complications induced by plate after ACDF.
Animals
;
Cervical Vertebrae
;
Diskectomy*
;
Female
;
Follow-Up Studies
;
Humans
;
Lordosis
;
Methods*
;
Postoperative Complications
;
Radiculopathy
;
Radiography
;
Range of Motion, Articular
;
Retrospective Studies
;
Spinal Cord Diseases
;
Spinal Fusion
3.Mandibulotomy for The Approach to The Oral Cavity, Oropharynx and Skull Base.
Hyung Seok LEE ; Kyung TAE ; Bong Taek SHIM ; Son Wuk KWON ; Kyung Sung AHN
Korean Journal of Otolaryngology - Head and Neck Surgery 1997;40(10):1390-1397
BACKGROUND: Adequate exposure of skull base lesion and intraoral lesion occupying the posterior oral cavity, base of tongue, tonsil, superior hypopharynx, anterior skull base, and infratemporal space for wide-field primary surgical resection is critical to tumor ablation. The division of mandible for resection of tumor was first undertaken by Roux in 1836, and many studies renewed the interest of mandible sparing procedure for surgical treatment of oropharyngeal carcinoma. OBJECTIVES: Mandibular swing approach for gaining access to oral cavity, oropharynx, and skull base for excision of tumor, provides excellent exposure with low complication rate when there is intervening grossly normal tissue between the tumor and bone. We studied mandibular swing approach with our surgical experience, with special emphasis on its subtypes related to osteotomy sites and forms. MATERIALS AND METHOD: The records of 20 patients underwent mandibular swing approach at Hanyang University Hospital, were studied by chart review. The patients were retrospectively reviewed to assess age, sex, tumor site origin, stage of disease, types of neck dissection and methods of the reconstruction, types of the mandibular osteotomies, and difference of complication rates between symphyseal and parasymphyseal osteotomy. RESULTS: Post-operative complications occured in 6 patients(30%). But osteotomy related complication rate was 15%. Complications of osteotomy site occurred at a rate of 20% in the symphyseal osteotomy group, but no complications arose in parasymphyseal osteotomy group. CONCLUSIONS: We believe that, if the mandible is clinically and radiologically clear of malignant involvement, midline mandibulotomy is more feasible surgical approach method for treatment of oral cavity, oropharyngeal, skull base lesion.
Humans
;
Hypopharynx
;
Mandible
;
Mandibular Osteotomy
;
Mouth*
;
Neck Dissection
;
Oropharynx*
;
Osteotomy
;
Palatine Tonsil
;
Retrospective Studies
;
Skull Base*
;
Skull*
;
Tongue
4.Migration of an Intracranial Subdural Hematoma to the Spinal Subdural Space: A Case Report.
O Ik KWON ; Dong Wuk SON ; Young Ha KIM ; Young Soo KIM ; Soon Ki SUNG ; Sang Weon LEE ; Geun Sung SONG
Korean Journal of Spine 2015;12(3):207-209
A 57-year-old man complained of severe lower back pain and radicular pain in both legs for 1 week after falling from a ladder. Magnetic resonance imaging (MRI) of the spine showed a subdural hematoma (SDH), which was surgically removed. The patient had no back pain or the radicular leg pain at 2 weeks post-surgery. However, he complained of diffuse headaches upon follow-up. Brain computed tomography (CT) and MRI revealed an intracranial SDH, which was immediately removed by surgery. During his 1-year follow-up, he reported that the pain had resolved without recurrence. Simultaneous spinal and intracranial SDH are rare and no standard treatment exists for this condition. This case suggests that it is possible that an intracranial SDH can migrate into the cerebrospinal fluid (CSF) space through an arachnoid tear. CSF circulation allows the intracranial SDH to enter subarachnoid spaces encasing the spinal cord. In order to prevent irreversible damage, surgical intervention should be considered for case of spinal SDH with progressive neurological deficits.
Arachnoid
;
Back Pain
;
Brain
;
Cerebrospinal Fluid
;
Follow-Up Studies
;
Headache
;
Hematoma, Subdural
;
Hematoma, Subdural, Intracranial*
;
Hematoma, Subdural, Spinal
;
Humans
;
Leg
;
Low Back Pain
;
Magnetic Resonance Imaging
;
Middle Aged
;
Recurrence
;
Spinal Cord
;
Spinal Injuries
;
Spine
;
Subarachnoid Space
;
Subdural Space*
;
Tears
5.Effect of Modic Changes in Cervical Degenerative Disease.
Kyung Tag KANG ; Dong Wuk SON ; Oik KWON ; Su Hun LEE ; Jong Uk HWANG ; Dong Ha KIM ; Jun Seok LEE ; Geun Sung SONG
Korean Journal of Spine 2017;14(2):41-43
OBJECTIVE: Modic changes are signal intensity changes in adjacent vertebral bone marrow on magnetic resonance imaging. Few studies have investigated these changes with regard to the cervical spine. In this study, we investigated the associations between cervical degenerative disease and Modic changes. METHODS: We conducted a retrospective collection of radiological data in patients with neck pain at Pusan National University Yangsan Hospital from January 2010 to December 2014. A total of 169 patients were included in this study. Disc herniation grade, disc space height and global cervical lordosis (C2–C7 Cobb angle) were measured and analyzed. If Modic changes were present, we recorded the Modic change type based on the literature, vertebral level, age, sex, and surgical requirement. RESULTS: Sixty-six patients exhibited Modic changes in the cervical spine. Out of these 66 patients, Modic change type II (56 patients, 84.8%) and C5–6 vertebral level (23 patients, 34.8%) were the most predominant categories. Patients with Modic change showed worse outcomes in regard to disc herniation grade, disc space height and global cervical lordosis than patients without (p<0.01). Among 169 patients, 18 patients had undergone anterior cervical discectomy with fusion (ACDF). Patients with Modic changes (10 of 66 patients, 15.1%) had a greater probability of undergoing ACDF than those without (8 of 103 patients, 7.8%; p<0.01). CONCLUSION: Modic changes refer cervical degenerative changes, and incidence of ACDF is higher when the Modic changes are occurred.
Animals
;
Bone Marrow
;
Busan
;
Cervical Vertebrae
;
Diskectomy
;
Female
;
Gyeongsangnam-do
;
Humans
;
Incidence
;
Intervertebral Disc Degeneration
;
Lordosis
;
Magnetic Resonance Imaging
;
Neck Pain
;
Retrospective Studies
;
Spine
6.Thickening Ligamentum Flavum Mimicking Tumor in the Epidural Space of the Cervical Spine.
Sung Hyun BAE ; Dong Wuk SON ; O Ik KWON ; Su Hun LEE ; Jun Seok LEE ; Geun Sung SONG
Korean Journal of Neurotrauma 2018;14(1):43-46
In patients with tumors and spinal cord lesions, inflammation and tissue infection can result in mass effect detection on imaging. As a result, surgical biopsy procedures are often performed on the lesions. We report a rare case in which the thickening ligamentum flavum (LF) appeared to be a tumor in the epidural space of the cervical spine based on imaging findings. A 52-year-old man visited our outpatient clinic with severe shoulder pain and radicular pain in his right arm that had developed gradually after a traffic accident two months earlier. Magnetic resonance imaging of the cervical spine revealed an extradural mass at the cervicothoracic junction level. Suspecting a tumor, spinal decompression surgery was performed and a biopsy of the mass was obtained. At the time of surgery, the LF was thick and compressed the spinal cord. After successful removal of the LF, the spinal cord appeared normal. Histopathological examination confirmed the mass as the LF. The patient was discharged without pain or weakness two weeks postoperatively. This case demonstrated that when the LF of the cervicothoracic junction is thickened, it may be misdiagnosed as a cervical spine tumor compressing the spinal cord.
Accidents, Traffic
;
Ambulatory Care Facilities
;
Arm
;
Biopsy
;
Cervical Vertebrae
;
Decompression
;
Epidural Space*
;
Female
;
Humans
;
Inflammation
;
Ligamentum Flavum*
;
Magnetic Resonance Imaging
;
Middle Aged
;
Radiculopathy
;
Shoulder Pain
;
Spinal Cord
;
Spinal Cord Compression
;
Spine*