Imaging pitfalls of pancreatic serous cystic neoplasm and its potential mimickers.
The aim of this article is to clarify diagnostic pitfalls of pancreatic serous cystic neoplasm (SCN) that may result in erroneous characterization. Usual and unusual imaging findings of SCN as well as potential SCN mimickers are presented. The diagnostic key of SCN is to look for a cluster of microcysts (honeycomb pattern), which may not be always found in the center. Fibrosis in SCN may be mistaken for a mural nodule of intraductal papillary mucinous neoplasm (IPMN). The absence of cyst wall enhancement may be helpful to distinguish SCN from mucinous cystic neoplasm. However, oligocystic SCN and branch duct type IPMN may morphologically overlap. In addition, solid serous adenoma, an extremely rare variant of SCN, is difficult to distinguish from neuroendocrine tumor.
Kousei Ishigami, Catherine M Metz, Department of Radiology, University of Iowa Hospitals and Clinics, Iowa City, IA 52242, United States.
Kousei
K
Ishigami
Kousei Ishigami, Catherine M Metz, Department of Radiology, University of Iowa Hospitals and Clinics, Iowa City, IA 52242, United States.
Akihiro
A
Nishie
Kousei Ishigami, Catherine M Metz, Department of Radiology, University of Iowa Hospitals and Clinics, Iowa City, IA 52242, United States.
Yoshiki
Y
Asayama
Kousei Ishigami, Catherine M Metz, Department of Radiology, University of Iowa Hospitals and Clinics, Iowa City, IA 52242, United States.
Yasuhiro
Y
Ushijima
Kousei Ishigami, Catherine M Metz, Department of Radiology, University of Iowa Hospitals and Clinics, Iowa City, IA 52242, United States.
Yukihisa
Y
Takayama
Kousei Ishigami, Catherine M Metz, Department of Radiology, University of Iowa Hospitals and Clinics, Iowa City, IA 52242, United States.
Nobuhiro
N
Fujita
Kousei Ishigami, Catherine M Metz, Department of Radiology, University of Iowa Hospitals and Clinics, Iowa City, IA 52242, United States.
Shunichi
S
Takahata
Kousei Ishigami, Catherine M Metz, Department of Radiology, University of Iowa Hospitals and Clinics, Iowa City, IA 52242, United States.
Takao
T
Ohtsuka
Kousei Ishigami, Catherine M Metz, Department of Radiology, University of Iowa Hospitals and Clinics, Iowa City, IA 52242, United States.
Tetsuhide
T
Ito
Kousei Ishigami, Catherine M Metz, Department of Radiology, University of Iowa Hospitals and Clinics, Iowa City, IA 52242, United States.
Hisato
H
Igarashi
Kousei Ishigami, Catherine M Metz, Department of Radiology, University of Iowa Hospitals and Clinics, Iowa City, IA 52242, United States.
Shuji
S
Ikari
Kousei Ishigami, Catherine M Metz, Department of Radiology, University of Iowa Hospitals and Clinics, Iowa City, IA 52242, United States.
Catherine M
CM
Metz
Kousei Ishigami, Catherine M Metz, Department of Radiology, University of Iowa Hospitals and Clinics, Iowa City, IA 52242, United States.
Hiroshi
H
Honda
Computed tomography; Intraductal papillary mucinous neoplasm; Magnetic resonance imaging; Mucinous cystic neoplasm; Serous cystic neoplasm