Liposarcoma CT: Difference between revisions
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* Focal or diffuse areas of fat associated with nonlipomatous components are commonly detected on computed tomographic or magnetic resonance images. | * Focal or diffuse areas of fat associated with nonlipomatous components are commonly detected on computed tomographic or magnetic resonance images. | ||
* The appearance and morphologic relationship between these areas frequently allow identification of the specific histologic subtype of liposarcoma. | * The appearance and morphologic relationship between these areas frequently allow identification of the specific histologic subtype of liposarcoma. | ||
* | * CT scan is also used to determine the stage of the disease assessing the presence of lymph nodes and distant metastasis.<ref name="KumarasamyGayer2011">{{cite journal|last1=Kumarasamy|first1=Narmadan A.|last2=Gayer|first2=Gabriela|title=Retroperitoneal Sarcomas|journal=Seminars in Ultrasound, CT and MRI|volume=32|issue=5|year=2011|pages=422–432|issn=08872171|doi=10.1053/j.sult.2011.06.002}}</ref> | ||
====CT Findings According to the Liposarcoma Subtype==== | ====CT Findings According to the Liposarcoma Subtype==== | ||
Revision as of 19:14, 19 September 2014
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Liposarcoma Microchapters |
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Diagnosis |
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Treatment |
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Case Studies |
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Liposarcoma CT On the Web |
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American Roentgen Ray Society Images of Liposarcoma CT |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
CT Scan
- Imaging findings of liposarcoma are frequently characteristic and correlate with each specific subtype.[1]
- Focal or diffuse areas of fat associated with nonlipomatous components are commonly detected on computed tomographic or magnetic resonance images.
- The appearance and morphologic relationship between these areas frequently allow identification of the specific histologic subtype of liposarcoma.
- CT scan is also used to determine the stage of the disease assessing the presence of lymph nodes and distant metastasis.[2]
CT Findings According to the Liposarcoma Subtype
| Subtypes | Density | Margins | Fat Content | Nodular muscle-density area in tumor | Calcifications | Necrotic or cystic areas |
| Atypical lipomatous tumor/well-differentiated liposarcoma (ALT/WDL) | Fat | Smooth regular | > 65% | ++ | Few/none | + |
| Dedifferentiated liposarcoma (DDL) | Mixed | Rough irregular | 30-60% | +++ | Few/none | ++ |
| Myxoid/round cell liposarcoma (ML/RCL) | Mixed | Rough irregular | 25-50% | + | Common | +++ |
| Pleomorphic liposarcoma (PL) | Soft tissue | Incomplete irregular | 6-25% | + | Few/none | + |
| Mixed-type liposarcoma | Mixed | Smooth regular | 30-60% | ++ | Common | + |
| Table adapted from CT Manifestations in Histologic Subtypes of Retroperitoneal Liposarcoma[3] | ||||||
References
- ↑ Kim, T; Murakami, T; Oi, H; Tsuda, K; Matsushita, M; Tomoda, K; Fukuda, H; Nakamura, H (1996). "CT and MR imaging of abdominal liposarcoma". American Journal of Roentgenology. 166 (4): 829–833. doi:10.2214/ajr.166.4.8610559. ISSN 0361-803X.
- ↑ Kumarasamy, Narmadan A.; Gayer, Gabriela (2011). "Retroperitoneal Sarcomas". Seminars in Ultrasound, CT and MRI. 32 (5): 422–432. doi:10.1053/j.sult.2011.06.002. ISSN 0887-2171.
- ↑ Jing Lu, Qin Qin, Liang-Liang Zhan, Xi Yang, Qing Xu, Jing Yu, Li-Na Dou, Hao Zhang, Yan Yang, Xiao-Chen Chen, Yue-Hua Yang, Hong-Yan Cheng & Xin-Chen Sun (2014). "Computed tomography manifestations of histologic subtypes of retroperitoneal liposarcoma". Asian Pacific journal of cancer prevention : APJCP. 15 (15): 6041–6046. PMID 25124571.