caa a22 4500 38808538X CHVBK 20180307125228.0 cr unu---uuuuu 161130e199911 xx s 000 0 eng 10.1017/S0022215100145797 doi S0022215100145797 pii (NATIONALLICENCE)cambridge-10.1017/S0022215100145797 Echography of metastatic nodes treated by radiotherapy [Elektronische Daten] The purpose of this study was to evaluate whether the ultrasonographic appearances of nodal metastases in nasopharyngeal carcinoma (NPC) revert to normal after radiotherapy. Serial ultrasonography was performed in 18 patients with palpable nodal metastases in the neck who underwent radiotherapy for NPC. All patients had a pre-radiotherapy baseline and another study at least one year after radiotherapy. The largest node in each patient was evaluated for any change in the ultrasonographic features following radiotherapy. One year after radiotherapy nodes returned to normal size for their respective areas, the shape of the node and the echogenic hilus also reverted to normal. However, the nodes are more echogenic than nodes in normal subjects. This distinguishes these nodes from nodes not affected by radiotherapy. The histological basis for this observation is presumed to be the result of fibrosis. At first glance the post-radiotherapy nodes may resemble normal nodes, however subtle changes within the node and adjacent soft tissues can be recognized on ultrasonography. During long-term follow-up, the appearance of nodes at sites previously uninvolved or any change in the appearance of nodes should alert the sonologist to the possibility of recurrence. Copyright © JLO (1984) Limited 1999 Ultrasonography nationallicence Nasopharyngeal neoplasms nationallicence Lymph nodes nationallicence Neoplasm metastasis nationallicence Radiotherapy nationallicence Ahuja A. Department of Diagnostic Radiology and Organ Imaging, Prince of Wales Hospital, Shatin, NT, Hong Kong. Leung S. F. Department of Clinical Oncology, Prince of Wales Hospital, Shatin, NT, Hong Kong. Ying M. Department of Diagnostic Radiology and Organ Imaging, Prince of Wales Hospital, Shatin, NT, Hong Kong. Metreweli C. Department of Diagnostic Radiology and Organ Imaging, Prince of Wales Hospital, Shatin, NT, Hong Kong. The Journal of Laryngology & Otology Cambridge University Press 113/11(1999-11), 993-998 0022-2151 113:11<993 1999 113 JLO https://doi.org/10.1017/S0022215100145797 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0022215100145797 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ahuja A. Department of Diagnostic Radiology and Organ Imaging, Prince of Wales Hospital, Shatin, NT, Hong Kong NATIONALLICENCE 700 1- Leung S. F. Department of Clinical Oncology, Prince of Wales Hospital, Shatin, NT, Hong Kong NATIONALLICENCE 700 1- Ying M. Department of Diagnostic Radiology and Organ Imaging, Prince of Wales Hospital, Shatin, NT, Hong Kong NATIONALLICENCE 700 1- Metreweli C. Department of Diagnostic Radiology and Organ Imaging, Prince of Wales Hospital, Shatin, NT, Hong Kong NATIONALLICENCE 773 0- The Journal of Laryngology & Otology Cambridge University Press 113/11(1999-11), 993-998 0022-2151 113:11<993 1999 113 JLO CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge