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Citation:
Gaillard F, Knipe H, Fatty nodal metaplasia. Reference article, Radiopaedia.org (Accessed on 03 Dec 2023) https://doi.org/10.53347/rID-1330
Fatty nodal metaplasia in the neck occurs as a result of chronic inflammation or radiotherapy 3. The normal fatty nodal hilum enlarges, such that the lymph node appears cystic. However, its center is of fatty density. There is no surrounding stranding, and the node otherwise looks normal.
Differential diagnosis
Lymph nodes displaying these characteristics must be distinguished from cystic necrotic nodes and 2nd branchial cleft cysts.
- 1. Choi J.W., S.S. Kim, E.Y. Kim and M. Heran. “Peripheral T-Cell Lymphoma in the Neck: CT Findings of Lymph Node Involvement.” AJNR Am J Neuroradiol 27, no. 5 (May 1, 2006): 1079-1082. [Link].
- 2. Yousem DM, PM Som, DB Hackney et al. “Central nodal necrosis and extracapsular neoplastic spread in cervical lymph nodes: MR imaging versus CT.” Radiology 182, no. 3 (March 1, 1992): 753-759. [Link].
- 3. PM Som "Lymph nodes of the neck" Radiology 1987 165: 593-600.
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