抄録
Introduction: The purpose of this retrospective study was to evaluate imaging features of undifferentiated carcinoma of the pancreas. Methods: The study group included eight patients with surgically resected undifferentiated carcinoma of the pancreas. Multidetector-row computed tomography (MDCT, n = 8) and magnetic resonance imaging (MRI, n = 6) findings were retrospectively reviewed. Results: On MDCT, all eight cases were hypovascular with upstream main pancreatic duct (MPD) dilatation, and only 1 showed exophytic growth. Five cases (62.5%) showed necrosis/cystic change, and calcification was observed in two cases (25%). Calcification reflected tumour osteoid components. On MRI, haemorrhage and hemosiderin were observed in 4 of 6 (66.7%) cases. In addition, tumour thrombus in the splenic vein (n = 1) and intraductal tumour growth in the MPD (n = 2) were pathologically identified, although imaging studies only revealed 1 of these latter cases. Conclusion: Undifferentiated carcinoma of the pancreas may present as a tumour with haemorrhagic necrosis. Coexistence of calcification, intraductal tumour growth in the MPD and tumour thrombus may support the imaging diagnosis of this entity.
| 元の言語 | 英語 |
|---|---|
| ページ（範囲） | 580-588 |
| ページ数 | 9 |
| ジャーナル | Journal of Medical Imaging and Radiation Oncology |
| 巻 | 63 |
| 発行部数 | 5 |
| DOI | |
| 出版物ステータス | 出版済み - 10 1 2019 |
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All Science Journal Classification (ASJC) codes
- Oncology
- Radiology Nuclear Medicine and imaging
これを引用
Imaging features of undifferentiated carcinoma of the pancreas. / Ishigami, Kousei; Nishie, Akihiro; Yamamoto, Takeo; Asayama, Yoshiki; Ushijima, Yasuhiro; Kakihara, Daisuke; Fujita, Nobuhiro; Morita, Koichiro; Ohtsuka, Takao; Kawabe, Ken; Mochidome, Naoki; Honda, Hiroshi.
：: Journal of Medical Imaging and Radiation Oncology, 巻 63, 番号 5, 01.10.2019, p. 580-588.研究成果: ジャーナルへの寄稿 › 記事
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TY - JOUR
T1 - Imaging features of undifferentiated carcinoma of the pancreas
AU - Ishigami, Kousei
AU - Nishie, Akihiro
AU - Yamamoto, Takeo
AU - Asayama, Yoshiki
AU - Ushijima, Yasuhiro
AU - Kakihara, Daisuke
AU - Fujita, Nobuhiro
AU - Morita, Koichiro
AU - Ohtsuka, Takao
AU - Kawabe, Ken
AU - Mochidome, Naoki
AU - Honda, Hiroshi
PY - 2019/10/1
Y1 - 2019/10/1
N2 - Introduction: The purpose of this retrospective study was to evaluate imaging features of undifferentiated carcinoma of the pancreas. Methods: The study group included eight patients with surgically resected undifferentiated carcinoma of the pancreas. Multidetector-row computed tomography (MDCT, n = 8) and magnetic resonance imaging (MRI, n = 6) findings were retrospectively reviewed. Results: On MDCT, all eight cases were hypovascular with upstream main pancreatic duct (MPD) dilatation, and only 1 showed exophytic growth. Five cases (62.5%) showed necrosis/cystic change, and calcification was observed in two cases (25%). Calcification reflected tumour osteoid components. On MRI, haemorrhage and hemosiderin were observed in 4 of 6 (66.7%) cases. In addition, tumour thrombus in the splenic vein (n = 1) and intraductal tumour growth in the MPD (n = 2) were pathologically identified, although imaging studies only revealed 1 of these latter cases. Conclusion: Undifferentiated carcinoma of the pancreas may present as a tumour with haemorrhagic necrosis. Coexistence of calcification, intraductal tumour growth in the MPD and tumour thrombus may support the imaging diagnosis of this entity.
AB - Introduction: The purpose of this retrospective study was to evaluate imaging features of undifferentiated carcinoma of the pancreas. Methods: The study group included eight patients with surgically resected undifferentiated carcinoma of the pancreas. Multidetector-row computed tomography (MDCT, n = 8) and magnetic resonance imaging (MRI, n = 6) findings were retrospectively reviewed. Results: On MDCT, all eight cases were hypovascular with upstream main pancreatic duct (MPD) dilatation, and only 1 showed exophytic growth. Five cases (62.5%) showed necrosis/cystic change, and calcification was observed in two cases (25%). Calcification reflected tumour osteoid components. On MRI, haemorrhage and hemosiderin were observed in 4 of 6 (66.7%) cases. In addition, tumour thrombus in the splenic vein (n = 1) and intraductal tumour growth in the MPD (n = 2) were pathologically identified, although imaging studies only revealed 1 of these latter cases. Conclusion: Undifferentiated carcinoma of the pancreas may present as a tumour with haemorrhagic necrosis. Coexistence of calcification, intraductal tumour growth in the MPD and tumour thrombus may support the imaging diagnosis of this entity.
UR - http://www.scopus.com/inward/record.url?scp=85068515570&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85068515570&partnerID=8YFLogxK
U2 - 10.1111/1754-9485.12925
DO - 10.1111/1754-9485.12925
M3 - Article
C2 - 31268241
AN - SCOPUS:85068515570
VL - 63
SP - 580
EP - 588
JO - Journal of Medical Imaging and Radiation Oncology
JF - Journal of Medical Imaging and Radiation Oncology
SN - 1754-9477
IS - 5
ER -