Primary renal lymphomas are very rare since renal involvement by the disease is most often a manifestation of disseminated disease. We report an 88-year-old man with low-grade extranodal marginal zone B cell lymphoma of mucosa-associated lymphoid tissue (MALT) (MALT lymphoma) arising in the kidney. After the workup, the patient was thought to have renal cell carcinoma and underwent partial neph...

The indolent and favorable clinical course of extranodal B cell lymphoma of mucosa-associated lymphoid tissue type (MALT lymphoma) of stomach is well known. For both physician and patient, one of the most fearful parts for gastric MALT lymphoma must be the bone marrow aspiration and biopsy (BMAB) rather than the disease itself. Guidelines from authorities still does not reach to a concurrence o...

piration cytology (FNAC) has increased to around 5060% (1), chronic lymphocytic thyroiditis and small cell undifferentiated carcinoma (anaplastic carcinoma) are still being confused with thyroid lymphoma (2). No reports concerning the ultrasonographic (US) and computed tomographic (CT) features of primary mucosa-associated lymphoid tissue (MALT) lymphoma have yet been published in the Korean ra...

Primary thyroid lymphoma is a rare malignancy, representing 2-8% of all thyroid malignancies and 1-2% of all extranodal lymphomas. The majority of cases concern non-Hodgkin's lymphoma of B cell origin, following by Hodgkin's disease, T cell lymphomas and rarely marginal zone B-cell mucosa-associated lymphoid tissue (MALT) lymphomas. MALT lymphomas have been associated with long-standing autoimm...

We herein report the case of a 93-year-old woman with breast cancer on the left side. Preoperative computed tomography of the chest showed irregularities and narrowing of the mid-trachea. Bronchoscopy was performed, and the results of a biopsy supported a diagnosis of mucosa-associated lymphoid tissue (MALT) lymphoma. The patient responded to treatment with prednisone alone, with a reduction in...

Primary esophageal lymphoma is an extremely rare disease. We report a 76-year-old woman with esophageal lymphoma who achieved remission after Helicobacter pylori (HP) eradication. Esophagogastroduodenoscopy (EGD) revealed a mass in the lower esophagus, and she was diagnosed with stage IE mucosa-associated lymphoid tissue (MALT) lymphoma. She rejected any anti-lymphoma treatment except for HP er...

Pulmonary mucosa-associated lymphoid tissue-derived (MALT) lymphoma is a rare disease. This disorder is considered to be a model of antigen-driven lymphoma, which is driven either by autoantigens or by chronic inflammatory conditions. Low-grade B-cell MALT lymphoma may develop from a nonneoplastic pulmonary lymphoproliferative disorder, such as lymphocytic interstitial pneumonitis (LIP). A rece...

MalT, the specific activator of the maltose regulon, is the prototype of a family of high-molecular-mass ATP-binding bacterial transcription activators. On binding of its two positive effectors, the inducer maltotriose and ATP, MalT oligomerizes to an active state competent for promoter binding and transcription activation. In addition to its previously known DNA-binding domain, limited proteol...

Mucosa-associated lymphoid tissue (MALT) lymphoma usually originates from the stomach and presents with low 18F-fluorodeoxyglucose (FDG) avidity with average maximum standard uptake value of 3.6. Colorectal MALT lymphoma is a rare entity that contributes to 1.6% of all MALT lymphomas and < 0.2% of large intestinal malignancies. The case reported herein firstly revealed stage IIE MALT lymphoma w...

We present a case of a 56-year-old man with 3 synchronous gastric tumors. The patient presented with melena, and 3 gastric abnormalities were detected on gastroduodenoscopic examination, including a small ulcerative lesion in the gastric antrum, a submucosal mass in the gastric body, and severe erosion in the fundus. Histological examination of biopsy samples yielded respective diagnoses of gas...