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Congress: ECR25
Poster Number: C-12223
Type: Poster: EPOS Radiologist (educational)
Authorblock: I. Ueno1, M. H. Carmo1, A. H. Suyama Tsuji1, M. D. S. Bandeira Filho1, R. Bastos Monteiro1, J. R. Fonseca2, H. Yamashita2, A. M. B. Wolosker2; 1São Paulo/BR, 2SAO PAULO/BR
Disclosures:
Italo Ueno: Nothing to disclose
Mariana Helena Carmo: Nothing to disclose
Andre Hiroki Suyama Tsuji: Nothing to disclose
Marcelo Dos Santos Bandeira Filho: Nothing to disclose
Roberto Bastos Monteiro: Nothing to disclose
Jose Roberto Fonseca: Nothing to disclose
Helio Yamashita: Nothing to disclose
Angela Maria Borri Wolosker: Nothing to disclose
Keywords: Ear / Nose / Throat, Head and neck, Respiratory system, CT, MR, MR-Diffusion/Perfusion, Education, Technical aspects, Image registration
Learning objectives To review the convoluted cerebriform pattern entities and their characterisation on magnetic resonance imaging with focus on the radiological features that aid in the differential diagnoses.
Read more Background A convoluted cerebriform pattern (CCP) is a term for characterizing the appearance of a sinonasal inverted papilloma (IP) on MRI, but it is not pathognomonic. This pattern is present on T2-weighted (T2W) and contrast-enhanced T1-weighted (T1W C+) images and appears as alternating signal intensity bands. It is also considered in pathology with the hyperplastic epithelium and the less cellular edematous stroma (high vascularization).
Read more Findings and procedure details MRI is widely used in diagnosis in nasal cavity and sinuses lesions due to superior soft-tissue resolution and multiplanar capabilities.[1] These lesions cannot be distinguished based solely on their typical signs or features.The CCP is not specific to IP; although some studies reported up to 80% of the cases, [2] it is also present in malignant masses, such as non-Hodgkin’s lymphoma (NHL), squamous cell carcinoma, esthesioneuroblastoma, and adenocarcinoma. [3,4] Some authors show a low frequency of rhinosinusitis with nasal polyps...
Read more Conclusion MRI is widely used in diagnosis in nasal cavity and sinuses lesions due to superior soft-tissue resolution and multiplanar capabilities.These lesions cannot be distinguished based solely on their typical signs or features.The CCP is not specific to IP; although some studies reported up to 80% of the cases, it is also present in malignant masses, such as non-Hodgkin’s lymphoma (NHL), squamous cell carcinoma, esthesioneuroblastoma, and adenocarcinoma.In small and abundant edematous stroma band lesions, the CCP pattern cannot be detected. Other...
Read more References Jeon TY, Kim HJ, Chung SK, Dhong HJ, Kim HY, Yim YJ, et al. Sinonasal Inverted Papilloma: Value of Convoluted Cerebriform Pattern on MR Imaging. AJNR Am J Neuroradiol. setembro de 2008;29(8):1556–60. Chawla A, Shenoy J, Chokkappan K, Chung R. Imaging Features of Sinonasal Inverted Papilloma: A Pictorial Review. Current Problems in Diagnostic Radiology. setembro de 2016;45(5):347–53. Yan CH, Tong CCL, Penta M, Patel VS, Palmer JN, Adappa ND, Nayak JV, Hwang PH, Patel ZM. Imaging predictors for malignant transformation of inverted...
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