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Small Cell Neuroendocrine Carcinoma of Paranasal Sinuses: Radiologic Features in 14 Cases.
J Comput Assist Tomogr. 2020 Jul 06 [Online ahead of print]JC

Abstract

PURPOSE

The purpose of this study was to explore the characteristic computed tomography (CT) and magnetic resonance (MR) features of small cell neuroendocrine carcinoma (SNEC) of paranasal sinuses.

MATERIALS AND METHODS

Computed tomography (n = 8) and MR (n = 14) images and clinical findings from 14 patients with SNEC of paranasal sinuses were retrospectively reviewed.

RESULTS

Eight lesions were located in the ethmoidal sinus, 4 in the maxillary sinus, and 2 in the sphenoid sinus. Small cell neuroendocrine carcinoma of the sphenoid sinus showed bilateral asymmetry patterns. On CT images, bony changes were visible in all 8 cases. On MR, 4 cases contained hemorrhage, and 10 cases contained cystic or necrotic areas. All cases demonstrated marked heterogeneous enhancement, with half showing a "cribriform-like" or "geographic" appearance. The nasal cavity was the most common site invaded by SNEC of paranasal sinuses, followed by the orbits. A time-signal intensity curve examination showed a washout-type pattern in all but 1 case. The mean ± SD apparent diffusion coefficient value was 0.702 ± 0.112 (×10 mm/s). According to the Dulguerov staging system, 9 tumors were staged as N0 (1 T1, 1 T2, 5 T3, and 2 T4). The recurrence rate was 64.3%.

CONCLUSIONS

Some characteristics of radiological findings can provide important clues for preoperative diagnosis.

Authors+Show Affiliations

From the Department of Radiology, Eye, Ear, Nose and Throat Hospital, Shanghai Medical College, Fudan University, Shanghai, China.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32649429

Citation

Lin, Naier, et al. "Small Cell Neuroendocrine Carcinoma of Paranasal Sinuses: Radiologic Features in 14 Cases." Journal of Computer Assisted Tomography, 2020.
Lin N, Qi M, Wang Z, et al. Small Cell Neuroendocrine Carcinoma of Paranasal Sinuses: Radiologic Features in 14 Cases. J Comput Assist Tomogr. 2020.
Lin, N., Qi, M., Wang, Z., Luo, S., Pan, Y., Zhang, F., & Sha, Y. (2020). Small Cell Neuroendocrine Carcinoma of Paranasal Sinuses: Radiologic Features in 14 Cases. Journal of Computer Assisted Tomography. https://doi.org/10.1097/RCT.0000000000001065
Lin N, et al. Small Cell Neuroendocrine Carcinoma of Paranasal Sinuses: Radiologic Features in 14 Cases. J Comput Assist Tomogr. 2020 Jul 6; PubMed PMID: 32649429.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Small Cell Neuroendocrine Carcinoma of Paranasal Sinuses: Radiologic Features in 14 Cases. AU - Lin,Naier, AU - Qi,Meng, AU - Wang,Zhengyue, AU - Luo,Siqi, AU - Pan,Yucheng, AU - Zhang,Fang, AU - Sha,Yan, Y1 - 2020/07/06/ PY - 2020/7/11/entrez PY - 2020/7/11/pubmed PY - 2020/7/11/medline JF - Journal of computer assisted tomography JO - J Comput Assist Tomogr N2 - PURPOSE: The purpose of this study was to explore the characteristic computed tomography (CT) and magnetic resonance (MR) features of small cell neuroendocrine carcinoma (SNEC) of paranasal sinuses. MATERIALS AND METHODS: Computed tomography (n = 8) and MR (n = 14) images and clinical findings from 14 patients with SNEC of paranasal sinuses were retrospectively reviewed. RESULTS: Eight lesions were located in the ethmoidal sinus, 4 in the maxillary sinus, and 2 in the sphenoid sinus. Small cell neuroendocrine carcinoma of the sphenoid sinus showed bilateral asymmetry patterns. On CT images, bony changes were visible in all 8 cases. On MR, 4 cases contained hemorrhage, and 10 cases contained cystic or necrotic areas. All cases demonstrated marked heterogeneous enhancement, with half showing a "cribriform-like" or "geographic" appearance. The nasal cavity was the most common site invaded by SNEC of paranasal sinuses, followed by the orbits. A time-signal intensity curve examination showed a washout-type pattern in all but 1 case. The mean ± SD apparent diffusion coefficient value was 0.702 ± 0.112 (×10 mm/s). According to the Dulguerov staging system, 9 tumors were staged as N0 (1 T1, 1 T2, 5 T3, and 2 T4). The recurrence rate was 64.3%. CONCLUSIONS: Some characteristics of radiological findings can provide important clues for preoperative diagnosis. SN - 1532-3145 UR - https://www.unboundmedicine.com/medline/citation/32649429/Small_Cell_Neuroendocrine_Carcinoma_of_Paranasal_Sinuses:_Radiologic_Features_in_14_Cases L2 - https://doi.org/10.1097/RCT.0000000000001065 DB - PRIME DP - Unbound Medicine ER -
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