Retroperitoneal well-differentiated inflammatory liposarcoma: a diagnostic dilemma

被引：7

作者：

Kawano, Rinsaku ^{[1
]}

Nishie, Akihiro ^{[1
]}

Yoshimitsu, Kengo ^{[1
]}

Irie, Hiroyuki ^{[1
]}

Tajima, Tsuyoshi ^{[1
]}

Hirakawa, Masakazu ^{[1
]}

Ishigami, Kousei ^{[1
]}

Ushijima, Yasuhiro ^{[1
]}

Okamoto, Daisuke ^{[1
]}

Yabuuchi, Hidetake ^{[1
]}

Taketomi, Akinobu ^{[2
]}

Nishihara, Yunosuke ^{[3
]}

Fujita, Nobuhiro ^{[3
]}

Honda, Hiroshi ^{[1
]}

机构：

[1] Kyushu Univ, Grad Sch Med Sci, Dept Clin Radiol, Higashi Ku, Fukuoka 8128582, Japan

[2] Kyushu Univ, Grad Sch Med Sci, Dept Surg & Sci, Fukuoka 8128582, Japan

[3] Kyushu Univ, Grad Sch Med Sci, Dept Anat Pathol, Fukuoka 8128582, Japan

来源：

RADIATION MEDICINE | 2008年 / 26卷 / 07期

关键词：

Well-differentiated inflammatory liposarcoma; Retroperitoneum; CT; MRI; Lymphoma;

D O I：

10.1007/s11604-008-0255-6

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

We present a case of retroperitoneal well-differentiated inflammatory liposarcoma that was extremely difficult to diagnose preoperatively. Computed tomography and magnetic resonance images showed a 5-cm homogeneous soft-tissue mass with a decreased apparent diffusion coefficient and without fat component in the retroperitoneum. Minimal fat stranding was detected around the mass. The preoperative working diagnosis was malignant lymphoma or inflammatory pseudotumor, whereas the final diagnosis after surgery was well-differentiated inflammatory liposarcoma. As a result, only a large component of lymphoid infiltration was recognized as a tumor preoperatively, and minimal fat stranding represented a component of lipoma-like liposarcoma. In this entity, a lipomatous component could easily be missed on radiologic imaging because of the conspicuity of lymphoid infiltration. We should consider the possibility of this variant when we evaluate a retroperitoneal tumor.

引用

页码：450 / 453

页数：4

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