论文部分内容阅读
目的:探讨鼻咽非霍奇金淋巴瘤(NHL)的影像学特征。材料与方法:回顾性分析经病理证实的28例鼻咽NHL的MR或CT表现,其中22例行CT检查,6例行MR检查。观察肿块的形态、有无坏死、邻近结构及颈部淋巴结浸润的特点。结果:16例表现为鼻咽粘膜对称性或大致对称性弥漫性增厚,12例表现为鼻咽顶后壁和(或)一侧壁局限性增厚,形成软组织肿块,并突向鼻咽腔。25例密度(信号)强化均匀。病灶累及口咽壁者14例,其中腭或(和)舌根扁桃体浸润4例;累及喉咽2例;累及鼻腔4例;枕骨斜坡受侵并累及颅底肌肉1例。17例患者合并颈部淋巴结肿大,其中4例内出现坏死。结论:鼻咽NHL常侵犯鼻咽多个侧壁,病灶及淋巴结坏死少见,很少累及颅底骨质,易向下蔓延至咽淋巴环其他部位。影像学检查对其诊断、鉴别诊断及病灶范围的判断有重要价值。
Objective: To investigate the imaging features of nasopharyngeal non-Hodgkin’s lymphoma (NHL). Materials and Methods: The pathologic findings of 28 cases of nasopharyngeal NHL were retrospectively analyzed. Among them, CT was performed in 22 cases and MR in 6 cases. Observation of tumor morphology, with or without necrosis, adjacent structures and cervical lymph node infiltration characteristics. Results: In 16 cases, nasopharyngeal mucosa showed diffuse thickening symmetry or general symmetry, 12 cases showed localized thickening of posterior wall and / or side wall of nasopharynx, forming soft tissue mass and projecting to the nasopharynx Cavity. 25 cases of density (signal) enhanced uniform. There were 14 patients with oropharyngeal wall involvement in the lesion, including 4 cases of palatal (and) tongue tonsil invasion, 2 cases of hysteropharyngeal involvement, 4 cases of nasal cavity involvement, 1 case of occipital slope incarceration and involvement of skull base muscle. Seventeen patients had neck lymph nodes with necrosis in 4 of them. Conclusion: Nasopharyngeal NHL often infiltrates multiple side walls of the nasopharynx. Necrotic lesions and lymph node necrosis are rare, rarely involving the skull base, and easily spread to the other parts of the pharyngeal lymph nodes. Imaging examination of its diagnosis, differential diagnosis and determine the scope of the lesion of great value.