Spontaneous regression of intraoral mucosa‐associated lymphoid tissue lymphoma: Molecular study of a case

Mucosa‐associated lymphoid tissue (MALT) lymphoma presentation in the oral cavity is very rare. Reported herein is a case of intraoral MALT lymphoma of the minor salivary gland in a 70‐year‐old woman with Sjogren’s syndrome. Unexpectedly, a spontaneous clinically and histologically confirmed regress...

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Veröffentlicht in:Pathology international 2006-06, Vol.56 (6), p.331-335
Hauptverfasser: Sakuma, Hidenori, Okabe, Mitsukuni, Yokoi, Motoo, Eimoto, Tadaaki, Inagaki, Hiroshi
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creator Sakuma, Hidenori
Okabe, Mitsukuni
Yokoi, Motoo
Eimoto, Tadaaki
Inagaki, Hiroshi
description Mucosa‐associated lymphoid tissue (MALT) lymphoma presentation in the oral cavity is very rare. Reported herein is a case of intraoral MALT lymphoma of the minor salivary gland in a 70‐year‐old woman with Sjogren’s syndrome. Unexpectedly, a spontaneous clinically and histologically confirmed regression occurred 1 month after the tumor biopsy for diagnosis. Considering that salivary MALT lymphoma is associated with Sjogren’s syndrome and that the chronic inflammation caused by Sjogren’s syndrome persisted, it is hypothesized that the tumor clone might be present in the regressed lesion. Minimal residual tumor clone identical with the primary lesion was detected using the polymerase chain reaction (PCR) clonality assay for immunoglobulin heavy chain gene (IgH) rearrangement. No recurrence was clinically evident 38 months after the diagnosis. Spontaneous regression of MALT lymphoma should be examined at the molecular level in addition to clinical and histological evaluations. When minimal residual disease is detected, close follow up is necessary for early detection of the tumor relapse.
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subjects Aged
Clone Cells - pathology
DNA, Neoplasm - analysis
Female
Gene Rearrangement, B-Lymphocyte, Heavy Chain - genetics
Gene Rearrangement, B-Lymphocyte, Heavy Chain - immunology
Humans
Lymphoma, B-Cell, Marginal Zone - genetics
Lymphoma, B-Cell, Marginal Zone - immunology
Lymphoma, B-Cell, Marginal Zone - pathology
minimal residual disease
mucosa‐associated lymphoid tissue lymphoma
Neoplasm Regression, Spontaneous - genetics
Neoplasm Regression, Spontaneous - immunology
Neoplasm Regression, Spontaneous - pathology
Neoplasm, Residual - genetics
Neoplasm, Residual - immunology
Neoplasm, Residual - pathology
Oncogene Proteins, Fusion - genetics
oral cavity
Reverse Transcriptase Polymerase Chain Reaction
Salivary Gland Neoplasms - genetics
Salivary Gland Neoplasms - immunology
Salivary Gland Neoplasms - pathology
Salivary Glands, Minor - immunology
Salivary Glands, Minor - pathology
Sjogren’s syndrome
spontaneous regression
title Spontaneous regression of intraoral mucosa‐associated lymphoid tissue lymphoma: Molecular study of a case
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