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Non-functional Pituitary Adenoma Detected on 18F-fluorodeoxyglucose Positron Emission Tomography (18F-FDG-PET) in a Patient with Mucosa-associated Lymphoid Tissue Lymphoma

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dc.contributor.author이, 진하-
dc.contributor.author한, 승진-
dc.contributor.author박, 세은-
dc.contributor.author조, 미애-
dc.contributor.author정, 준원-
dc.contributor.author윤, 미진-
dc.contributor.author이, 유미-
dc.contributor.author이, 은직-
dc.contributor.author임, 승길-
dc.date.accessioned2014-01-07T05:00:28Z-
dc.date.available2014-01-07T05:00:28Z-
dc.date.issued2008-
dc.identifier.issn1015-6380-
dc.identifier.urihttp://repository.ajou.ac.kr/handle/201003/8809-
dc.description.abstract본 저자는 MALT 림프종으로 치료 중인 환자에서 양전자단층촬영술상 뇌하수체에 국소적인 FDG 섭취가 관찰되었고 안장 자기공명영상에서는 라트케열 낭으로 의심되는 소견이 발견되었으나, 호르몬검사상 비기능성 뇌하수체 선종으로 의심되는 사례를 경험하였기에 이를 보고하는 바이다.-
dc.description.abstractMagnetic resonance imaging (MRI) is the modality of choice for the detection and characterization of a pituitary adenoma. Uptake of 18F-fluorodeoxyglucose (FDG) by intrasellar tumors, including pituitary adenomas, has been reported in several previous studies. We report a case where a pituitary adenoma was detected on FDG-positron emission tomography(PET), but the tumor was not detected with the use of sellar MRI. A 31-year-old woman was referred to the clinic due to a focal increase of FDG uptake at the pituitary fossa seen on whole body FDG-PET. The patient was receiving chemotherapy due to a recurred B-cell lymphoma of the mucosa-associated lymphoid tissue type. Subsequently, sellar MRI was performed, and images showed a small non-enhancing heterogenous cystic lesion in the midline of the pituitary gland, radiologically suggestive of a Rathke`s cleft cyst. However, sellar MRI failed to identify a lesion consistent with a pituitary tumor that corresponded to the site of increased FDG uptake detected by the use of PET, despite the inclusion of a dynamic contrast enhanced sequence. Despite the negative findings of the MRI examination, basal and stimulated levels of the GnRH free α-subunit were profoundly increased. Therefore, we suspected the presence of a non-functional pituitary tumor in addition to a Rathke`s cleft cyst, rather than pituitary involvement of a lymphoma, based on the hormone levels and PET scan findings.-
dc.formattext/plain-
dc.language.isoko-
dc.titleNon-functional Pituitary Adenoma Detected on 18F-fluorodeoxyglucose Positron Emission Tomography (18F-FDG-PET) in a Patient with Mucosa-associated Lymphoid Tissue Lymphoma-
dc.title.alternative림프종 환자에서 양전자단층촬영술상 발견된 비기능성 뇌하수체선종 1예-
dc.typeArticle-
dc.subject.keywordLymphoma-
dc.subject.keywordnon-functioning pituitary adenoma-
dc.subject.keywordPET-
dc.contributor.affiliatedAuthor한, 승진-
dc.type.localJournal Papers-
dc.identifier.doi10.3803/jkes.2008.23.2.137-
dc.citation.titleJournal of Korean Endocrine Society-
dc.citation.volume23-
dc.citation.number2-
dc.citation.date2008-
dc.citation.startPage137-
dc.citation.endPage141-
dc.identifier.bibliographicCitationJournal of Korean Endocrine Society, 23(2). : 137-141, 2008-
dc.relation.journalidJ110156380-
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Journal Papers > School of Medicine / Graduate School of Medicine > Endocrinology & Metabolism
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