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Tc-99m Pertechnetate / TI-201 감영 신티그라피에서 부갑상선 선종으로 오인된 흉선종 1 예
정용안(Yong An Chung),유이령(Ie Ryung Yoo),김성훈(Seong Jang Kim),정수교(Soo Kyo Chung),왕영필(Young Pil Wang),정지한(Ji Han Jung),이교영(Kyo Young Lee),김병기(Byung Kee Kim) 대한핵의학회 2001 핵의학 분자영상 Vol.35 No.4
A large superior mediastinal mass was found incidentally by ultrasonography in a 60-year-old man. There was an abnormal accumulation of Tl-201 in the lower pole of left thyroid gland, extending into left superior mediastinum on Tc-99m pertechnetate/Tl-201 subtraction scan. Laboratory findings relating thyroid and parathyroid were all within normal range. We considered the mass as a non-functioning parathyroid adenoma tentatively. However, subsequent surgery and pathologic examination revealed the mass to be a benign mixed thymoma. We report a case of patient with thymoma showing unusual Tc-99m pertechnetate/Tl-201 subtraction imaging and laboratory findings, and suggest to consider the possibility of other mediastinal tumors rather than parathyroid adenoma. (Korean J Nucl Med 2001;35:274-279)
코의 Angiocentric Immunoproliferative Lesions(AILs)
한지연(Ji Youn Han),김재유(Jae You Kim),이연수(Youn Soo Lee),정수미(Su Mee Chung),김민식(Min Shik Kim),윤세철(Sei Chul Yoon),김훈교(Hoon Kyo Kim),조승호(Seung Ho Cho),김병기(Byung Kee Kim),경식(Kyung Shik Lee),김동집(Dong Jip Kim) 대한두경부종양학회 1996 대한두경부 종양학회지 Vol.12 No.1
Lymphomatoid granulomatosis, polymorphic reticulosis, midline malignant reticulosis, or lethal midline granuloma have similar histologic features of an angiocentric and angiodestructive lymphoreticular proliferation representing the same nosologic entity. The term 'angiocentric immunoproliferative lesion' (AIL) was proposed by Jaffe, Costa, and Martin. The malignant potential of AILs is originally uncertain, but the facts that AILs have a relatively short survival, and most of them usually progress to an overt malignant lymphoma and survival is inversely proportional to the large, atypical lymphoreticular cells suggest that AILs are malignane. We experienced 17 AILs in nose during 16-year period and retrogradely analized them to recognize the problems in the diagnosis and to establish the further therapeutic strategies. The results were as follows; Twelve of total 17 patients who had diagnosed as histologic grade 1 and 2 had received radiation therapy as an initial treatment and the complete response rate was 91.7%(11/12), but 6 out of 11 had local recurrence and 5 had progress to overt maligant lymphoma within 2years. Three patients with the histologic grade 3 and 2 with unclear histologic grade had received CHOP chemotherapy and there was 1 case with complete response. Two patients with unclear histologic grade had been proved to be malignant histiocytosis by bone marrow biopsy during the clinical course. The overall duration of survival was 2 - 119 months and the 5-year survival rate was 71.9%. And the achievement of initial complete response was the most important prognostic factor of overall survival(P=0.006). Our results suggest that the treatment strategy according to the histologic grading scheme is efficient and more aggressive combination chemotherapy may be necessary to achieve complete response in patients with histologic grade III and II, because most of them progress to overt malignant lymphoma during its process.