Difficulty differentiating primary mediastinal classical Hodgkin lymphoma from inflammatory myofibroblastic tumor: A case report

Author:

Akata Kentaro12ORCID,Yamasaki Kei2ORCID,Chiba Yosuke2,Kawaguchi Takako2,Dosaka Hiroki2,Morimoto Toshiki3,Higashi Yasuyuki3,Nishida Chinatsu3,Shimajiri Shohei4,Yatera Kazuhiro2

Affiliation:

1. Division of Infection Control and Prevention University of Occupational and Environmental Health, Japan Kitakyushu Japan

2. Department of Respiratory Medicine University of Occupational and Environmental Health, Japan Kitakyushu Japan

3. Department of Environmental Health Engineering Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Japan Kitakyushu Japan

4. Department of Pathology University of Environmental and Occupational Health, Japan Kitakyushu Japan

Abstract

AbstractA 20‐year‐old Japanese man visited our hospital because an enlarged mediastinal shadow had been detected on chest x‐ray. Chest computed tomography revealed a large mediastinal mass with multiple lymph node enlargement, pericardial effusion, and bilateral pleural effusion. He was diagnosed with inflammatory myofibroblastic tumor (IMT) based on a thoracoscopic tumor biopsy. Initial corticosteroid and celecoxib treatment was only partially effective; therefore, additional tumor rebiopsy and left axillary lymph node biopsy were performed. Based on the findings, the patient was rediagnosed with classical Hodgkin lymphoma (CHL). To date, there has only been one report of a case initially diagnosed as IMT and rediagnosed as CHL, as in our case, and only three reports of malignant lymphoma mimicking IMT. When IMT is suspected based on pathological findings and subsequently with treatment failure, possible CHL and performing rebiopsy should be considered.

Publisher

Wiley

Subject

Pulmonary and Respiratory Medicine,Oncology,General Medicine

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