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題 名 | Image Characteristics of Muscular Sarcoidosis and Muscular Lymphoma: Report of Two Cases with Comparison between Them=肌肉型類肉瘤症與原發性肌肉淋巴瘤:兩病例之比較報告 |
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作 者 | 薛涵中; 顏若芳; 鄭媚方; 陳信嘉; 洪瑞隆; | 書刊名 | 臺灣癌症醫學雜誌 |
卷 期 | 2:1 2015.03[民104.03] |
頁 次 | 頁69-75 |
分類號 | 415.6 |
關鍵詞 | 淋巴瘤; 類肉瘤症; 正子掃描; 核磁共振; Lymphoma; Sarcoidosis; PET; MRI; |
語 文 | 英文(English) |
中文摘要 | 近年來,正子掃描廣泛用於淋巴瘤的分期檢查。因此,與淋巴瘤在正子掃瞄上有相似表現的疾病,可能會造成臨床分期的錯誤,進而影響治療策略。過去已有文獻報導淋巴瘤與類肉瘤症並存的案例,稱為類肉瘤 —淋巴瘤症候群。本文描述兩位患有瀰漫性大 B細胞淋巴瘤的病人,在正子掃描下,其骨骼肌均表現高葡萄糖吸收量。第一位病人診斷為淋巴瘤,肌肉病灶經切片後,證實為合併肌肉型類肉瘤症;第二位病人則是原發性肌肉淋巴瘤。核磁共振攝影可用以協助區辨肌肉型類肉瘤症與原發性肌肉淋巴瘤:典型的肌肉型類肉瘤症在核磁共振上表現「三斑」與「暗星」徵象,原發性肌肉淋巴瘤則表現均勻的高顯影劑顯影。雖然核磁共振掃瞄可輔助鑑別診斷,但組織學檢查仍為區辨標準。在治療類肉瘤症與淋巴瘤的病人,正子掃瞄可用以評估疾病範圍與活性,核磁共振可提供額外的診斷資訊,但當病人的治療計劃會因診斷而改變時,仍應進行組織切片做確切的區辨。 |
英文摘要 | The association between sarcoidosis and lymphoproliferative diseases is well-recognized. As fluorine-18 fluorodeoxyglucose (FDG)-positron emission tomography (PET) is increasingly utilized in lymphoma staging, it is important for clinicians to be aware of lymphoma mimickers on FDG-PET. Here we describe two patients with diffuse large B-cell lymphoma who presented with high muscular FDG-uptake. The first patient had histologically proven concomitant muscular sarcoidosis, while the second patient had primary skeletal muscle lymphoma. FDG-PET is of limited utility in discerning sarcoidosis and lymphoma, as both lesions are FDG-avid. Magnetic resonance imaging may provide clues to differentiate these two entities non-invasively. The “3 stripes” and “dark star” signs are characteristic for muscular sarcoidosis, whereas muscular lymphoma usually demonstrates homogenous gadolinium enhancement. Nevertheless, histological examination remains the gold standard in distinguishing hese two diseases. In conclusion, while FDG-PET may be useful in monitoring disease extent and activity of both sarcoidosis and lymphoma, and MRI may provide additional diagnostic information, biopsy is still recommended when clinical decision-making dictates confirmatory diagnosis. |
本系統中英文摘要資訊取自各篇刊載內容。