Fibroma CT: Difference between revisions
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===Uterine Fibroma=== | ===Uterine Fibroma=== | ||
*On CT scans, fibromas are usually of soft tissue density but may exhibit coarse peripheral or central calcification. | *On CT scans, fibromas are usually of soft tissue density but may exhibit coarse peripheral or central calcification.<ref name="OhgiyaSeino2017">{{cite journal|last1=Ohgiya|first1=Yoshimitsu|last2=Seino|first2=Noritaka|last3=Miyamoto|first3=Shingo|last4=Takeyama|first4=Nobuyuki|last5=Hatano|first5=Kumi|last6=Munechika|first6=Jiro|last7=Ishizuka|first7=Kumiko|last8=Hirose|first8=Masanori|last9=Ohike|first9=Nobuyuki|last10=Hashimoto|first10=Toshi|last11=Sekizawa|first11=Akihiko|last12=Gokan|first12=Takehiko|title=CT features for diagnosing acute torsion of uterine subserosal leiomyoma|journal=Japanese Journal of Radiology|volume=36|issue=3|year=2017|pages=209–214|issn=1867-1071|doi=10.1007/s11604-017-0712-1}}</ref><ref name="RoyBierry2004">{{cite journal|last1=Roy|first1=C.|last2=Bierry|first2=G.|last3=Ghali|first3=S. El|last4=Buy|first4=X.|last5=Rossini|first5=A.|title=Acute torsion of uterine leiomyoma: CT features|journal=Abdominal Imaging|volume=30|issue=1|year=2004|pages=120–123|issn=0942-8925|doi=10.1007/s00261-004-0240-1}}</ref> | ||
*They may distort the usually smooth uterine contour | *They may distort the usually smooth uterine contour | ||
*Enhancement pattern is variable | *Enhancement pattern is variable | ||
==References== | ==References== | ||
{{Reflist|2}} | {{Reflist|2}} | ||
Revision as of 12:24, 11 June 2019
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Fibroma Microchapters |
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Diagnosis |
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Treatment |
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Fibroma CT On the Web |
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American Roentgen Ray Society Images of Fibroma CT |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Simrat Sarai, M.D. [2]
Overview
CT scan may be helpful in the diagnosis of fibroma. Findings on x-ray suggestive of a particular fibroma depends on the type of the fibroma. Findings on CT scan of ossifying fibroma include a well-circumscribed lesion, intracortical osteolysis with a characteristic sclerotic band, and moderate cortical expansion. Findings on CT scan of non- ossifying fibroma include sharply demarcated, asymmetrical, cortically based lucencies with a thin sclerotic rim. Findings on CT scan of chondromyxoid fibroma include a mild cortical expansion and characteristic lack of mineralization within chondromyxoid fibroma. Findings on CT scan of cemento-ossifying fibroma include a well circumscribed masses which expand the underlying bone.[1][1][1][1]
CT Findings
Ossifying Fibroma
Findings on CT scan of ossifying fibroma includes the following:[2][3][4]
- Seen as a well-circumscribed lesion
- Demonstrates evidence of intracortical osteolysis with a characteristic sclerotic band (osteoblastic rimming)
- Moderate cortical expansion
Non-ossifying Fibroma
- Non-ossifying fibromas are typically sharply demarcated, asymmetrical, cortically based lucencies with a thin sclerotic rim.[5]
- They often appear multiloculated.
- They are located in the metaphysis, adjacent to the physis. However, as the patient ages, they seem to migrate away from the growth plate.
- They have no associated periosteal reaction, cortical breach or associated soft tissue mass.
Ovarian Fibromas
- Fibromas usually manifest as diffuse, slightly hypoattenuating masses with poor, very slow contrast enhancement. Calcification and bilaterality are both uncommon.[1]
Pleural Fibromas
- Tends to have soft tissue attenuation on unenhanced scans and show relatively homogenous intense background enhancement on contrast enhanced scans.[1]
- Non-enhancing areas may be present corresponding to necrosis, myxoid degeneration, or haemorrhage within the tumour. A pedicular attachment may also be seen.
Cardiac Fibromas
- At CT, cardiac fibromas are homogeneous soft-tissue masses that are usually sharply marginated, but also can be infiltrative. Dystrophic calcification is common.[1]
Chondromyxoid Fibroma
- On computed tomography (CT), mild cortical expansion may be observed, and the lesions have a density greater than fluid throughout.[1]
- CT scans also exhibit characteristic lack of mineralization within chondromyxoid fibromas.
Cemento-ossifying Fibroma
- Cemento-ossifying fibromas are usually well circumscribed masses which expand the underlying bone.[1]
- They are usually small, but can become large. This is particularly the case when they arise from the maxilla or paranasal sinuses because there is more room to expand.
- They are initially lucent on x-ray with soft tissue attenuation on CT. As they mature, they gradually develop increasing amounts of calcification/ossification as they mature.
- They usually expand the bone without cortical breach.
- Following administration of contrast, the soft tissue component usually enhances on CT.
Uterine Fibroma
- On CT scans, fibromas are usually of soft tissue density but may exhibit coarse peripheral or central calcification.[6][7]
- They may distort the usually smooth uterine contour
- Enhancement pattern is variable
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 Fibroma. Radiopedia(2015) http://radiopaedia.org/articles/ossifying-fibroma Accessed on March 12, 2016
- ↑ Kawaguchi, Masaya; Kato, Hiroki; Miyazaki, Tatsuhiko; Kato, Keizo; Hatakeyama, Daijiro; Mizuta, Keisuke; Aoki, Mitsuhiro; Matsuo, Masayuki (2018). "CT and MR imaging characteristics of histological subtypes of head and neck ossifying fibroma". Dentomaxillofacial Radiology. 47 (6): 20180085. doi:10.1259/dmfr.20180085. ISSN 0250-832X.
- ↑ Owosho, Adepitan A.; Hughes, Marion A.; Prasad, Joanne L.; Potluri, Anitha; Costello, Bernard J.; Branstetter, Barton F. (2015). "Is Computed Tomography an Adequate Imaging Modality for the Evaluation of Juvenile Ossifying Fibroma? A Comparison of 2 Imaging Modalities (Computed Tomography and Magnetic Resonance Imaging)". Journal of Oral and Maxillofacial Surgery. 73 (7): 1304–1313. doi:10.1016/j.joms.2015.01.013. ISSN 0278-2391.
- ↑ Yang, B.T.; Wang, Y.Z.; Wang, X.Y.; Wang, Z.C. (2012). "Imaging study of ossifying fibroma with associated aneurysmal bone cyst in the paranasal sinus". European Journal of Radiology. 81 (11): 3450–3455. doi:10.1016/j.ejrad.2012.05.010. ISSN 0720-048X.
- ↑ Sabaté-Llobera, A.; Notta, P.C.; Pons-Escoda, A.; Puig-Calvo, O.; Martín-Comín, J. (2015). "Scintigraphic depiction of non-ossifying fibromas and the role of SPECT/CT". Revista Española de Medicina Nuclear e Imagen Molecular. 34 (3): 181–184. doi:10.1016/j.remn.2014.10.004. ISSN 2253-654X.
- ↑ Ohgiya, Yoshimitsu; Seino, Noritaka; Miyamoto, Shingo; Takeyama, Nobuyuki; Hatano, Kumi; Munechika, Jiro; Ishizuka, Kumiko; Hirose, Masanori; Ohike, Nobuyuki; Hashimoto, Toshi; Sekizawa, Akihiko; Gokan, Takehiko (2017). "CT features for diagnosing acute torsion of uterine subserosal leiomyoma". Japanese Journal of Radiology. 36 (3): 209–214. doi:10.1007/s11604-017-0712-1. ISSN 1867-1071.
- ↑ Roy, C.; Bierry, G.; Ghali, S. El; Buy, X.; Rossini, A. (2004). "Acute torsion of uterine leiomyoma: CT features". Abdominal Imaging. 30 (1): 120–123. doi:10.1007/s00261-004-0240-1. ISSN 0942-8925.