title: Esophageal metastasis secondary to extranodal nasal-type natural killer/T-cell lymphoma: A case report.
abstract: We herein report a case of recurrent nasal natural killer (NK)/T-cell lymphoma in a 21-year-old male patient. The patient presented with an esophageal mass, fever and difficulty in swallowing. There were no other obvious sites of recurrence apart from the esophageal lesion. Metastatic esophageal lesions are extremely rare. The histological analysis demonstrated a highly aggressive tumor with a characteristic angiodestructive growth pattern and nasal cavity necrosis. The lymphoma cells were immunopositive for leukocyte common antigen, T-cell intracytoplasmic antigen 1 and CD68, negative for CD56 and CD3, and positive for Epstein-Barr virus. A computed tomography scan revealed mild thickening of the wall of the lower esophagus. The barium swallow revealed stiffness of the esophageal wall, with limited expansion and mucosal damage. The final diagnosis was primary nasal NK/T-cell lymphoma, with metastasis to the esophagus. Clinically, it is important to distinguish nasal-type NK/T-cell lymphoma from other types of tumors, as its prognosis and treatment of secondary metastases differ significantly.
authors.affiliation: Department of Oncology, Tai-He Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China.
authors.forename: Zheng-Ying
authors.initials: ZY
authors.lastname: Mo
authors.affiliation: Department of Radiology, Ren-Ming Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China.
authors.forename: Ping
authors.initials: P
authors.lastname: Wang
authors.affiliation: Department of Clinical Laboratory, Tai-He Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China.
authors.forename: Hong-Wei
authors.initials: HW
authors.lastname: Yang
authors.affiliation: Department of Clinical Laboratory, Tai-He Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China.
authors.forename: Wen-Bin
authors.initials: WB
authors.lastname: Li
authors.affiliation: Department of Clinical Laboratory, Tai-He Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China.
authors.forename: Qing-LE
authors.initials: QL
authors.lastname: Liang
keywords: distant metastasis; extranodal type; natural killer/T-cell lymphoma