Journal List > Korean J Gastroenterol > v.62(2) > 1007125

Jung, Kang, Hahn, Choi, and Kim: Primary Mucosa-associated Lymphoid Tissue Lymphoma of the Esophagus, Manifesting as a Submucosal Tumor

Abstract

We report a case of primary mucosa-associated lymphoid tissue (MALT) lymphoma in the esophagus that manifested as a large submucosal tumor (SMT). Primary esophageal lymphoma is very rare, occurring in less than 1% of all patients with gastrointestinal lymphoma. Only a few cases of MALT lymphoma in the esophagus have been reported in the English literature. A 53-year-old man was referred to Dongguk University Ilsan Hospital (Goyang, Korea) in July 2012 for further evaluation and treatment of an esophageal SMT. Endoscopy showed a cylindrically elongated submucosal mass with normal overlying mucosa in the mid esophagus, 25–30 cm from the incisor teeth. He underwent surgery to confirm the diagnosis. Pathologic findings showed diffuse small atypical lymphoid cells which were stained with Bcl-2, CD20, but not with CD3, CD5, CD23, Bcl-6, or cyclin D1. These cells showed a positive monoclonal band for immunoglobulin heavy chain gene rearrangement. Based on the pathological, immunohistochemical, and molecular biological features, the esophageal mass was diagnosed as extranodal marginal zone B-cell lymphoma of the MALT type.

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Fig. 1.
Endoscopic findings. (A) Endoscopic observation shows a cylindrically elongated submucosal mass in the mid esophagus (25–30 cm from the incisor teeth). (B) Endoscopic ultrasonography shows an ovoid homogenous hypoechoic mass (arrow) originating from the third hyperechoic layer (submucosa).
kjg-62-117f1.tif
Fig. 2.
Chest computed tomography findings. (A) There is a mediastinal solid mass arising from the esophagus wall (arrow). Its density is homogenous. (B) Sagittal reconstruction view shows a well-circumscribed longitudinal mass, following the path of the esophagus (arrow). There is a posterior displacement of the esophageal lumen by the mass.
kjg-62-117f2.tif
Fig. 3.
Pathologic features. (A) Diffuse infiltration of atypical lymphoid cells occupying the marginal zone of the lymphoid follicle (H&E; left, ×12.5; right, ×100). (B) Positive immunoreactivity for the bcl-2 protein (immunohistochemistry, ×200). (C) Positive immunoreactivity for the CD20 protein (immunohistochemistry, ×200).
kjg-62-117f3.tif
Table 1.
Clinical Findings of Reported Primary Esophageal MALT Lymphomas
Patient No. Author Age (yr) Sex Past medical history Complaint Helicobacter pylori infection Tumor feature Therapy
Site Size (cm) Endoscopic finding Primary Adjuvant
1 Chung et al.9 65 Male   Dysphagia No U‐ M 10×3×3 SMT Chemotherapy (CHOP×6)  
2 Nishryama et al.18 63 Female   None No M 10 SMT ND  
3 Hayashi et al.10 62 Female   None No ND   SMT Chemotherapy (R‐ CHOP×3)  
4 Hosaka et al.11 83 Female   Heartburn No U 1 and 1 SMT EMR  
5 Kishi et al.12 59 Male   Tarry stool No U‐ L 15×6.5×6 SMT Radiotherapy (36 Gy)  
6 Kitamoto et al.13 74 Male MCTD None No M   SMT Radiotherapy (36 Gy)  
7 Miyazaki et al.14 49 Male   None No L   SMT Operation  
8 Shim et al.15 61 Male Tbc, syphilis, autoimmune thyroiditis None Yes M‐ L 2×8 SMT Operation H. pylori eradication
9 Soweid and Zachary16 61 Male   None Yes (treated) U 1×2 and 1×2 SMT H. pylori eradication Chemotherapy (regimen unknown)
10 Yano et al.17 70 Female   None No M 0.6×0.8 and 2.0×0.8 SMT EMR Radiotherapy (30 Gy)
11 Ogura et al.19 60 Female   Dysphagia   U‐ L   SMT Chemotherapy (R‐ CHOP×6)  

MALT, mucosa‐ associated lymphoid tissue; MCTD, mixed connective tissue disease; Tbc, tuberculosis; U, upper; M, middle; L, lower; ND, no description in the original reports; SMT, submucosal tumor; CHOP, cyclophosphamide, doxorubicin, vincristine, and prednisolone; R‐ CHOP, rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisolone; EMR, endoscopic mucosal resection.

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