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Detection of Occult Thymoma Using Tc-99m tetrofosmin Scintigraphy (Tc-99m tetrofosmin 신티그래피로 우연히 발견된 흉선암종)

  • Kwon, Seong-Young;Jeong, Shin-Young;Seo, Young-Soon;Ha, Jung-Min;Chong, A-Ri;Oh, Jong-Ryool;Song, Ho-Chun;Min, Jung-Joon;Bom, Hee-Seung
    • Nuclear Medicine and Molecular Imaging
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    • v.42 no.3
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    • pp.259-260
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    • 2008
  • Tetrofosmin is a ligand that forms a lipophilic, cationic complex with Tc-99m. Tc-99m tetrofosmin was developed as a myocardial perfusion imaging agent and also used to depict tumors. Mediastinal tumors is also detected by Tc-99m tetrofosmin. We report a case of extracardiac mediastinal activity detected by Tc-99m tetrofosmin scintigraphy, which revealed thymoma.

Perforated Early Gastric Cancer -A case report- (진행성 위암으로 오인된 조기위암 천공 1예)

  • Lee Moon Soo;Kim Sung Yong;Oh Sang Hyun;hCae Man Kyu;Chung Il Kwon;Baek Moo Jun;Park Kyung Kyu;Kim Chang Ho;Cho Moo Sik
    • Journal of Gastric Cancer
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    • v.1 no.1
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    • pp.64-67
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    • 2001
  • An exceedingly rare case of perforated early gastric cancer is reported. A 68-year-old man developed peritonitis due to perforation of early gastric cancer. An emergency radical operation was performed and was followed by an uneventful recovery. Histologic examination of the surgical specimen showed type III early gastric cancer composed of a signet ring cell carcinoma. Five years after surgery, the patients was alive with no evidence of tumor recurrence. The rarity of this complication in early gastric cancer is discussed, and a review of the literature is presented.

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A Syndrome of Carotid Sinus Hypersensitivity in a Patient with Nasopharyngeal Carcinoma (비인강암 환자에서 발생한 경동맥동 과민증후군)

  • Yoon Hyung-Gue;Kang Jin-Hyung;Moon Han-Lim;Chae Jang-Seong;Kim Hoon-Kyo;Lee Kyung-Shik;Kim Dong-Jip;Lee Kwang-Soo;Yoon Sei-Chul;Cho Seung-Ho;Suh Byung-Do
    • Korean Journal of Head & Neck Oncology
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    • v.9 no.1
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    • pp.63-67
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    • 1993
  • The syndrome of carotid sinus hypersensitivity is cardovascular symptom complex including lightheadedness, transient loss of consciousness, perspiration, pallor, weakness of lower extremities, transient hypotension, bradycardia and seizure, which occurs from firing of hyperactive carotid sinus reflex. Most cases are idiopathic, but maliganant tumors involving parapharyngeal space have been occasionally implicated. We present a case of carotid sinus hypersensitivity due to nasopharyngeal carcinoma invading the parapharyngeal space with bilateral cervical lymphnode metastases(stage IV, $T_4N_2M_0$). The patient experienced several episodes of severe syncope proceeded by blurring of vision, dizziness and nausea, which were used to occur while he was working in erect position. The tumors were markedly regressed by external radiation therapy with successful resolution of syncope.

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A Case of Cerebral Salt Wasting Syndrome Associated with Tuberculous Meningitis (결핵성 뇌수막염에 동반된 뇌성 염분소실증후군(Cerebral salt wasting syndrome) 1예)

  • Lee, Ja Young;Lee, Eun Sil;Lee, Jae Hyong;Lim, Eun Ju;Kim, Hyoung Su;Jang, Ji Seon;Kim, Hyeon Kyu;Kim, Doo-Man;Park, Yong Bum;Lee, Jae Young;Mo, Eun Kyung
    • Tuberculosis and Respiratory Diseases
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    • v.59 no.3
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    • pp.306-310
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    • 2005
  • Hyponatremia which is due to excessive sodium loss in the urine and decrease in extracellular fluid volume following an acute or chronic central nervous system injury, has been conjunctively described as cerebral salt wasting syndrome (CSWS). This syndrome is often confused with dilutional hyponatremia due to inappropriate secretion of antidiuretic hormone. Accurate diagnosis and management are mandatory for improvement of the course of the disease. This report describes a case of a 31-year-old male patient with CSWS associated with tuberculous meningitis. The patient exhibited hyponatremia, polyuria, excessive natriuresis, volume depletion, and hypotension. He was diagnosed to manifest CSWS and was treated by administration of fluids, salt, and fludrocortisone. After the respective treatments, symptoms of polyuria and hypotension were gradually resolved and hyponatremia was corrected.

Synthesis of POSS Derived Organic-Inorganic Hybrid Esters for Insulating Oil Applications

  • Choi, Kyeong-Min;Harshavardhan, S.J.;Sridhar, Ch.;Vijaykumar, B.V.D.;Kumar, Deepak;Jang, Kiwan;Lee, Man-Sig;Shin, Dong-Soo
    • Bulletin of the Korean Chemical Society
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    • v.35 no.9
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    • pp.2769-2773
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    • 2014
  • In this work, a new family of polyhedral oligomeric silsesquioxanes (POSS) based esters have been synthesized that consists eight ester functional groups. These are classified into Type-I and Type-II esters based on the starting materials, octakis(3-chloropropyl)silsesquioxane (Cl-POSS) and octakis(3-hydroxypropyldimethylsiloxy) octasilsesquioxane (OHPS) respectively. These new POSS type ester moieties can be used as insulating oils and oil additives in the transformers and also considered to be alternatives to mineral and vegetable oils that are presently used in the insulation system.