1.The Radiological Spectrum of Orbital Pathologies that Involve the Lacrimal Gland and the Lacrimal Fossa.
Won Sang JUNG ; Kook Jin AHN ; Mi Ra PARK ; Ji Young KIM ; Jae Jeong CHOI ; Bum Soo KIM ; Seong Tai HAHN
Korean Journal of Radiology 2007;8(4):336-342
CT and MRI are utilized to differentiate between different types of masses and to determine the extent of lesions involving the lacrimal gland and the fossa. Although many diseases that affect the lacrimal gland and fossa are specifically diagnosed by imaging, it is frequently very difficult to differentiate each specific disease on the basis of image characteristics alone due to intrinsic similarities. In lacrimal gland epithelial tumors, benign pleomorphic adenomas are seen most commonly with a well defined benign appearance, and a malignant adenoid cystic carcinoma is seen with a typical invasive malignant appearance. However, a malignant myoepithelial carcinoma is seen with a benign looking appearance. Lymphomatous lesions of the lacrimal gland include a broad spectrum ranging from reactive hyperplasia to malignant lymphoma. These lesions can be very difficult to differentiate both radiologically and pathologically. Generally, lymphomas tend to occur in older patients. The developmental cystic lesions found in the lacrimal fossa such as dermoid and epidermoid cysts can be diagnosed when the cyst involves the superior temporal quadrant of the orbit and manifests as a non-enhancing cystic mass and, in case of a lipoma, it is diagnosed as a total fatty mass. However, masses of granulocytic sarcoma and xanthogranuloma, as well as vascular masses, such as a hemangiopericytoma, are difficult to diagnose correctly on the basis of preoperative imaging findings alone. A careful clinical evaluation and moreover, a pathologic verification, are needed. In this pictorial review, the various imaging spectrums of pathologic masses involving the lacrimal gland and fossa are presented, along with appropriate anatomy and pathology reviews.
Carcinoma, Squamous Cell/radiography
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Conjunctival Neoplasms/radiography
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Cysts/radiography
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Eye Neoplasms/*radiography
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Hemangiopericytoma/radiography
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Humans
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Lacrimal Apparatus/*pathology
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Lacrimal Apparatus Diseases/radiography
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Lipoma/radiography
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Lymphoma/radiography
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Neoplasms, Glandular and Epithelial/radiography
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Neurofibroma/radiography
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Sarcoma, Myeloid/radiography
2.Radiologic Findings of Uncommon Breast Cancer.
Jae Woon KIM ; Jae Hong AN ; Mi Soo HWANG ; Jae Kyo LEE ; Woo Mok BYUN
Yeungnam University Journal of Medicine 1998;15(1):114-124
We analyzed the mammographic (n=21) findings (location, margin, shape, cluster microcalcifications, size, multiplicity) and ultrasonographic (n=12) findings (shape, border, internal echo, boundary echo, posterior echo, lateral echo, width/depth ratio) to evaluate specific radiologic findings of histopathologically proved uncommon breast cancer. The mammographic findings (n=21) are as follow; 1) single; 16, multiple; 5 2) margin (smooth; 13, irregular; 4, spiculated; 4) 3) shape (round and ovoid; 9, lobulated; 8, irregular; 4) 4) cluster microcalcifications (abscent; 20, present; 1) 5) size (1-3cm; 18, 3-5cm; 2, 5cm> ; 1) 6) location (UOQ; 13, UIQ; 4, LIQ; 3, LOQ; 1). The ultrasonographic findings (n=12) are as follow; 1) shape (round to oval; 5, lobulated; 5, irregular; 2) 2) border (smooth even; 9, rough uneven; 3) 3) internal echo (fine homogeneous; 5, coarse heterogeneous; 7) 4) boundary echo (regular fine; 4, irregular thick; 8) 5) posterior echo (enhanced; 11, no change; 1) 6) lateral echo (marked; 7, nonexistent; 5) 7) width/depth ratio (1.5> 1, 1.0-1.5; 7, 1.0< ; 4). Uncommon breast cancer show benign nature on mammogram, but malignant nature on ultrasonogram (especially boundary echo, internal echo, width/depth ratio)
Breast Neoplasms*
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Breast*
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Radiography
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Ultrasonography
3.Peripheral Cholangiocarcinoma.
The Korean Journal of Hepatology 2002;8(1):110-111
No abstract available.
Aged
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*Bile Duct Neoplasms/radiography
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Bile Ducts, Intrahepatic
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*Cholangiocarcinoma/radiography
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Female
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Human
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*Liver Neoplasms/radiography
4.Mucosa-Associated Lymphoid Tissue Lymphoma of the Esophagus Coexistent with Bronchus-Associated Lymphoid Tissue Lymphoma of the Lung.
Jae Joon CHUNG ; Myeong Jin KIM ; Jeong Hae KIE ; Ki Whang KIM
Yonsei Medical Journal 2005;46(4):562-566
Non-Hodgkin's lymphoma very rarely involves the esophagus, occurring in less than 1% of patients with gastrointestinal lymphoma. A few cases of mucosa-associated lymphoid tissue (MALT) lymphoma of the esophagus have been reported in the English literature. To our knowledge, there has been no report of MALT lymphoma of the esophagus coexistent with bronchus-associated lymphoid tissue lymphoma (BALT) of the lung. This report details the radiological and clinical findings of this first concurrent case.
Aged
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Bronchi/pathology
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Esophageal Neoplasms/*pathology/radiography
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Humans
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Lung Neoplasms/*pathology/radiography
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Lymphoma/*pathology/radiography
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Lymphoma, Mucosa-Associated Lymphoid Tissue/*pathology/radiography
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Male
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Neoplasms, Multiple Primary/*pathology/radiography
5.Retroperitoneal Malignant Mesenchymoma: A Case of Mesenchymal Mixed Tumor with Osteosarcoma, Leiomyosarcoma, Liposarcoma and Fibrosarcoma.
Jung Eun CHOI ; Hong Jun CHUNG ; Won Jong YOO ; Myung Hee CHUNG ; Mi Sook SUNG ; Hae Giu LEE ; Il Young PARK ; Jeana KIM
Korean Journal of Radiology 2002;3(4):264-266
Malignant mesenchymoma is an interesting but very rare tumor in which malignant differentiation has occurred twice or more. We report a case of retroperitoneal malignant mesenchymoma consisting of osteosarcoma, leiomyosarcoma, liposarcoma and fibrosarcoma. Abdominal CT showed a large retroperitoneal mass with two separate and distinct parts, namely an area of prominent calcification and one of clearly enhancing solid components. The mass contained histologically distinct tumorous components with no histologic admixure at the interfaces. The densely calcified nodule corresponded to osteosarcoma, and the noncalcified clearly enhancing nodules to leiomyosarcoma, liposarcoma and fibrosarcoma.
Case Report
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Fibrosarcoma/*radiography
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Human
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Leiomyosarcoma/*radiography
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Liposarcoma/*radiography
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Male
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Mesenchymoma/*radiography
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Middle Age
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Osteosarcoma/*radiography
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Retroperitoneal Neoplasms/*radiography
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Tomography, X-Ray Computed
6.A Case of Giant Gastric Villous Tumor with Carcinomatous Change.
Chae Ryeong JANG ; Seok Reyol CHOI ; Jeong Hwan CHO ; Young Hun KOO ; Seung Ho HAN ; Seung Hoon RYU ; Dong Hyun LEE ; Jin Seok JANG ; Jong Hun LEE ; Myung Hwan ROH ; Jin Han CHO
The Korean Journal of Gastroenterology 2005;45(6):431-435
Villous tumors of the stomach are somewhat rare with approximately 100 cases only reported in the literatures and have tendency to undergo malignant transformation as high as 72%. They are frequently multiple and associated with other gasrtrointestinal neoplasm. Thirty percent of them are associated with an independent gastric carcinoma. Gastric villous tumor has certain radiologic characteristics that may permit a preoperative diagnosis and also some distinctive clinicopathologic features which make early diagnosis and proper treatment possible. We experienced a 64-year-old man who complained of prolonged general weakness, weight loss for several months and left upper quadrant pain for four days. Esophagogastroduodenoscopy and barium study of upper gastrointestinal tract demonstrated typical, irregular, frond-like surfaced villous tumor occupying nearly whole gastric lumen and located eccentrically along the lesser curvature side. Endoscopic biopsy of the tumor revealed a gastric villous tumor with carcinomatous change.
Adenoma, Villous/pathology/radiography
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Carcinoma/pathology/radiography
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Humans
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Male
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Middle Aged
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Stomach Neoplasms/*pathology/radiography
7.Radiological Intervention of Hepatocellular Carcinoma.
The Korean Journal of Gastroenterology 2005;45(4):258-270
In spite of the nice screening program using the state-of-the-art imaging modalities, most patients with hepatocellular carcinoma (HCC) are not eligible for curative resection due to poor hepatic functional reserve and multiplicity of the tumors. Therefore they greatly rely on percutaneous interventional procedures. Among these, transcatheter arterial chemoembolization and local ablation therapies including ethanol injection therapy or radiofrequency (RF) thermal ablation have gained wider acceptance for the local treatment of unresectable HCC with growing evidence of survival gain. Although we need more prospective randomized trials to determine the definite role of these interventional therapies, the current consensus is that they are safe and effective for the local control of small HCC and have a potential to replace definitive surgical options. In this review, the basic principles and published clinical results including long-term survival rates and complications are reviewed. The benefits and limitations of each therapy are also discussed.
Carcinoma, Hepatocellular/radiography/*therapy
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Combined Modality Therapy
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English Abstract
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Humans
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Liver Neoplasms/radiography/*therapy
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*Radiography, Interventional
8.Primary Alveolar Soft Part Sarcoma of the Lung.
Yeong Dae KIM ; Chang Hun LEE ; Min Ki LEE ; Yeon Joo JEONG ; Jee Yeon KIM ; Do Youn PARK ; Mee Young SOL
Journal of Korean Medical Science 2007;22(2):369-372
Alveolar soft part sarcoma (ASPS) is a rare epithelial-like soft tissue sarcoma. The two main sites of its occurrence are the lower extremities in adults and the head and neck in children. Primary pulmonary involvement of this sarcoma, without evidence of soft tissue tumor elsewhere, is very exceptional. We present a case of primary ASPS of the lung in a 42-yr-old woman. A computed tomographic scan of the thorax demonstrated a well-circumscribed, solid tumor located in the right upper lobe. The mass was resected by right upper lobectomy. After 5 months, three metastatic lesions, involving lumbar vertebrae and occipital scalp, were found. Histologically, the tumor consisted of alveolar nests of large polygonal tumor cells, the cytoplasm of which frequently revealed periodic acid-Schiff-positive, diastase-resistant intracytoplasmic rod-like structures. On immunohistochemical staining, the tumor cells were positive only for vimentin and alpha-smooth muscle actin. Ultrastuctural study using electron microscopy revealed characteristic electron-dense, rhomboid intracytoplasmic crystals.
Soft Tissue Neoplasms/pathology/radiography
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Sarcoma/*pathology/*radiography
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Rare Diseases/pathology/radiography
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Pulmonary Alveoli/*pathology/*radiography
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Lung Neoplasms/*pathology/*radiography
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Humans
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Female
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Adult
9.Arterioportal Shunt Mimicking Hepatocellular Carcinoma.
The Korean Journal of Hepatology 2004;10(1):78-80
No abstract available.
Carcinoma, Hepatocellular/*radiography
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Diagnosis, Differential
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Hepatic Artery/*radiography
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Humans
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*Liver Circulation
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Liver Neoplasms/*radiography
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Male
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Middle Aged
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Portal Vein/*radiography
10.Periosteal Osteosarcoma Arising from the Rib and Scapula: Imaging Features in Two Cases.
Jae Beom HONG ; Kil Ho CHO ; Joon Hyuk CHOI
Korean Journal of Radiology 2014;15(3):370-375
Periosteal osteosarcoma is an extremely rare chondroblastic osteosarcoma in the flat bone. There were authors reporting of two cases of periosteal osteosarcoma in the highly unusual sites. One of them arose from the rib, in a 17-year-old male, which appeared as a hypodense juxtacortical mass with periosteal reaction on CT. The other one arose from the scapula, in a 17-year-old female, which showed the intermediate signal intensity (SI) on T1-weighted image (WI), heterogeneous high SI on T2WI, and rim-enhancement on contrast-enhanced T1WI with cortical destruction on MRI.
Adolescent
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Bone Neoplasms/*radiography
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Contrast Media/diagnostic use
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Female
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Humans
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Male
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Osteosarcoma/*radiography
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Ribs/*radiography
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Scapula/*radiography