Liposarcoma CT: Difference between revisions
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==CT Scan== | ==CT Scan== | ||
* Imaging findings of liposarcoma are frequently characteristic. | * Imaging findings of liposarcoma are frequently characteristic and correlate with each specific subtype.<ref name="KimMurakami1996">{{cite journal|last1=Kim|first1=T|last2=Murakami|first2=T|last3=Oi|first3=H|last4=Tsuda|first4=K|last5=Matsushita|first5=M|last6=Tomoda|first6=K|last7=Fukuda|first7=H|last8=Nakamura|first8=H|title=CT and MR imaging of abdominal liposarcoma.|journal=American Journal of Roentgenology|volume=166|issue=4|year=1996|pages=829–833|issn=0361-803X|doi=10.2214/ajr.166.4.8610559}}</ref> | ||
* 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. | ||
*The size of | |||
====CT Findings According to the Liposarcoma Subtype==== | ====CT Findings According to the Liposarcoma Subtype==== | ||
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| style="padding: 5px 5px; background: #4479BA; font-weight: bold; width: 100px; text-align:center" | {{fontcolor|#FFF|Margins}} | | style="padding: 5px 5px; background: #4479BA; font-weight: bold; width: 100px; text-align:center" | {{fontcolor|#FFF|Margins}} | ||
| style="padding: 5px 5px; background: #4479BA; font-weight: bold; width: 100px; text-align:center" | {{fontcolor|#FFF|Fat Content }} | | style="padding: 5px 5px; background: #4479BA; font-weight: bold; width: 100px; text-align:center" | {{fontcolor|#FFF|Fat Content }} | ||
| style="padding: 5px 5px; background: #4479BA; font-weight: bold; width: 100px; text-align:center" | {{fontcolor|#FFF| | | style="padding: 5px 5px; background: #4479BA; font-weight: bold; width: 100px; text-align:center" | {{fontcolor|#FFF|Nodular muscle-density area in tumor}} | ||
| style="padding: 5px 5px; background: #4479BA; font-weight: bold; width: 100px; text-align:center" | {{fontcolor|#FFF|Calcifications}} | | style="padding: 5px 5px; background: #4479BA; font-weight: bold; width: 100px; text-align:center" | {{fontcolor|#FFF|Calcifications}} | ||
| style="padding: 5px 5px; background: #4479BA; font-weight: bold; width: 100px; text-align:center" | {{fontcolor|#FFF| | | style="padding: 5px 5px; background: #4479BA; font-weight: bold; width: 100px; text-align:center" | {{fontcolor|#FFF|Necrotic or cystic areas}} | ||
|- | |- | ||
| style="padding: 5px 5px; background: #4479BA; font-weight: bold;" | {{fontcolor|#FFF|Atypical lipomatous tumor/well-differentiated liposarcoma (ALT/WDL)}} | | style="padding: 5px 5px; background: #4479BA; font-weight: bold;" | {{fontcolor|#FFF|Atypical lipomatous tumor/well-differentiated liposarcoma (ALT/WDL)}} | ||
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}}</ref> </small> | }}</ref> </small> | ||
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Revision as of 18:51, 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.
- The size of
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[2] | ||||||
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.
- ↑ 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.