Fibroma CT
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Maneesha Nandimandalam, M.B.B.S.[2], Simrat Sarai, M.D. [3]
Overview
CT scan may be helpful in the diagnosis of fibroma. Findings on CT 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.
CT Findings
Ossifying Fibroma
Findings on CT scan of ossifying fibroma includes the following:[1][2][3]
- 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.[4]
- They often appear multiloculated.
- They are located in the metaphysis. 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
- They usually manifest as diffuse, slightly hypoattenuating masses with poor, very slow contrast enhancement. Calcification and bilaterality are both uncommon.[5][6][7]
Pleural Fibromas
- Tends to have soft tissue attenuation on unenhanced scans and show relatively homogenous intense background enhancement on contrast enhanced scans.[8][9][10]
- Non-enhancing areas may be present corresponding to necrosis, myxoid degeneration, or haemorrhage within the tumor. A pedicular attachment may also be seen.
Cardiac Fibromas
- On CT, cardiac fibromas are homogeneous soft-tissue masses that are usually sharply marginated, but also can be infiltrative. Dystrophic calcification is common.
Chondromyxoid Fibroma
- On computed tomography (CT), mild cortical expansion may be observed, and the lesions have a density greater than fluid throughout.[11][12][13]
- 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.
- 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.
- 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.[14][15]
- They may distort the usually smooth uterine contour
- Enhancement pattern is variable
References
- ↑ 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.
- ↑ Mariana Horta & Teresa Margarida Cunha (2015). "Sex cord-stromal tumors of the ovary: a comprehensive review and update for radiologists". Diagnostic and interventional radiology (Ankara, Turkey). 21 (4): 277–286. doi:10.5152/dir.2015.34414. PMID 26054417. Unknown parameter
|month=ignored (help) - ↑ Meng-yu Liu, Hua-dan Xue & Zheng-yu Jin (2012). "[CT findings of ovarian fibroma in 9 patients]". Zhongguo yi xue ke xue yuan xue bao. Acta Academiae Medicinae Sinicae. 34 (2): 104–108. doi:10.3881/j.issn.1000-503X.2012.02.002. PMID 22776593. Unknown parameter
|month=ignored (help) - ↑ Zhang, Zhixu; Wu, Yan; Gao, Jianbo (2014). "CT Diagnosis in the Thecoma–Fibroma Group of the Ovarian Stromal Tumors". Cell Biochemistry and Biophysics. 71 (2): 937–943. doi:10.1007/s12013-014-0288-7. ISSN 1085-9195.
- ↑ Bickelhaupt, S.; Shah, R.; Schneider, S.; Wrazidlo, W.; Schlemmer, H.; Lederer, W. (2015). "Computer- und magnetresonanztomografische Charakterisierung eines solitären fibrösen Tumors der Pleura". RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren. 187 (06): 489–491. doi:10.1055/s-0034-1385819. ISSN 1438-9029.
- ↑ Mittal, MaheshKumar; Mittal, Aliza; Sinha, Mukul; Sureka, Binit; Thukral, BrijBhushan (2013). "Radiological review of pleural tumors". Indian Journal of Radiology and Imaging. 23 (4): 313. doi:10.4103/0971-3026.125577. ISSN 0971-3026.
- ↑ Cardinale, Luciano; Ardissone, Francesco; Garetto, Irene; Marci, Valerio; Volpicelli, Giovanni; Solitro, Federica; Fava, Cesare (2017). "Imaging of benign solitary fibrous tumor of the pleura: a pictorial essay". Rare Tumors. 2 (1): 1–4. doi:10.4081/rt.2010.e1. ISSN 2036-3613.
- ↑ Tarhan, N. C.; Yologlu, Z.; Tutar, N. U.; Coskun, M.; Agildere, A. M.; Arikan, U. (2000). "Chondromyxoid fibroma of the temporal bone: CT and MRI findings". European Radiology. 10 (10): 1678–1680. doi:10.1007/s003300000323. ISSN 0938-7994.
- ↑ Cappelle, Sarah; Pans, Steven; Sciot, Raf (2016). "Imaging features of chondromyxoid fibroma: report of 15 cases and literature review". The British Journal of Radiology. 89 (1064): 20160088. doi:10.1259/bjr.20160088. ISSN 0007-1285.
- ↑ Shen, Shuai; Chen, Miao; Jug, Rachel; Yu, Cheng-Qian; Zhang, Wan-Lin; Yang, Lian-He; Wang, Liang; Yu, Juan-Han; Lin, Xu-Yong; Xu, Hong-Tao; Ma, Shuang (2017). "Radiological presentation of chondromyxoid fibroma in the sellar region". Medicine. 96 (49): e9049. doi:10.1097/MD.0000000000009049. ISSN 0025-7974.
- ↑ 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.