| Japanese |
|---|
| Title | 肝実質以外の病変による肝シンチグラムの異常所見 |
|---|
| Subtitle | 原著 |
|---|
| Authors | 勝部吉雄, 東浦利昌, 竹下昭尚 |
|---|
| Authors(kana) | |
|---|
| Organization | 鳥取大学医学部放射線科 |
|---|
| Journal | 核医学 |
|---|
| Volume | 7 |
|---|
| Number | 6 |
|---|
| Page | 377-384 |
|---|
| Year/Month | 1970/12 |
|---|
| Article | 原著 |
|---|
| Publisher | 日本核医学会 |
|---|
| Abstract | 「I. はじめに」肝スキャンは診断上限界があるとはいえ, 今日では臨床上, ルーチンに行なわれつつある. そして肝シンチグラム上欠損を示す疾患についての報告は枚挙に暇がない程多い. しかも, これらの報告のほとんどが肝癌などの肝実質の病変によって生じたものについての報告である. しかし, 肝は柔かく, 周囲の他臓器の病変などでも容易に圧迫され, 肝シンチグラム上変化がみられる. わが国では, 主にこの点をとりあげて報告したものはすくない. とくに腎腫瘍以外の影響による肝シンチグラムの欠損ないしは変形についての報告はほとんどない. 悪性腫瘍が他の臓器に存在するとき, 肝シンチグラム上欠損があれば多くの場合肝転移が考えられるか, 原発の悪性腫瘍に圧迫されても同様な所見がみられることがある. このことは, 肝シンチグラムを読む上に大切なことであり, 以下に述べるわれわれの経験は参考になろう. |
|---|
| Practice | 臨床医学：一般 |
|---|
| Keywords | |
|---|
| English |
|---|
| Title | False positive liver scans simulating intrahepatic neoplasms. |
|---|
| Subtitle | |
|---|
| Authors | Yoshio Katsube, Toshimasa Higashiura, Akihisa Takeshita, Y.Anno* |
|---|
| Authors(kana) | |
|---|
| Organization | Department of Radiology, Tottori University School of Medicine, *Prof |
|---|
| Journal | The Japanese Journal of nuclear medicine |
|---|
| Volume | 7 |
|---|
| Number | 6 |
|---|
| Page | 377-384 |
|---|
| Year/Month | 1970/12 |
|---|
| Article | Original article |
|---|
| Publisher | THE JAPANESE SOCIETY OF NUCLEAR MEDICINE |
|---|
| Abstract | As a result of its great pliability, the liver can change its shape and form when it is compressed by neighbouring disease processes. The resultant liver scan frequently simulates that of true intrahepatic space occupying lesions. The authors reported some of their own experiences with false positive liver scans caused by extrahepatic factors as follows : [I. retroperitoneal] Case 1. Leiomyosarcoma originating from left retroperitoneal cavity. A liver scan showed a marked defect of the left lobe that was attributable to compression of large extrahepatic mass. Case 2. A patient with carcinoma of the head of pancreas in whom selective celiac angiography and liver scan were performed. The liver scan showed slight indentation in the hepatic hilus that was difficult to distinguish from normal variations despite of typical opacification of tumor vessels on angiogram. Case 3. A patient with carcinoma of the body of pancreas whose liver scans showed a round area of decreased activity of the left lobe caused by upward compression of the tumor. Similar findings could be seen in right renal and suprarenal tumor. [II. intrabdominal] Case 4. A patient wlth dilated gas-filled intrahepatic bile ducts due to insufficiency of sphincter of Oddi. Band like filling defects were seen on liver scan. Case 5. Carcinoma of the stomach. Large amount of ascites compressed and displaced the liver to the left. Liver metastases were suspected on the scintigram but no mass was found at autopsy. Case 6. Interposition of colon. Overriding colon on the liver separates the left lobe from the right lobe on the liver scan. [III. intrathoracic] Case 7. Right pleural effusion compressed the liver downwards, consequently reversed S-shaped margin of its superior surface may be scarcely recognized. Similar condition may occur in emphysema, asthma and diaphragmatic tumor. [VI. the other] Anomalous conditions of heart, costal imprints in obese individuals and marked thoracic cage deformity may provide a false positive liver scan. The above mentioned factors should be considered in appreciating the liver scan. When it is difficult to distinguish from true hepatic metastases, one must employ other useful radiological techniques such as selective angiography. |
|---|
| Practice | Clinical medicine |
|---|
| Keywords | |
|---|