scholarly journals Appendiceal Orifice Inflammation in Ulcerative Colitis Mimicking Mucosa-Associated Lymphoid Tissue Lymphoma in the Cecum

2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Masaya Iwamuro ◽  
Takahide Takahashi ◽  
Takehiro Tanaka ◽  
Tomohiro Toji ◽  
Sakiko Hiraoka ◽  
...  
Keyword(s):  
Ulcerative Colitis ◽  
Malt Lymphoma ◽  
Lymphoid Tissue ◽  
Marginal Zone ◽  
Japanese Woman ◽  
Marginal Zone Lymphoma ◽  
Endoscopic Appearance ◽  
Screening Endoscopy ◽  
Old Japanese ◽  
Reddish Lesion

A 55-year-old Japanese woman, who had been diagnosed with ulcerative colitis at 18 years of age, underwent screening endoscopy examinations. Esophagogastroduodenoscopy revealed an extranodal marginal zone lymphoma of mucosa-associated lymphoid tissue (MALT lymphoma) of the stomach. Colonoscopy showed a slightly elevated reddish lesion with dilated microvessels but no erosions or ulcers. Although MALT lymphoma in the cecum was endoscopically suspected, flow cytometry and pathological analyses led to the diagnosis of appendiceal orifice inflammation in ulcerative colitis. This case highlights the diversity of the endoscopic appearance of appendiceal orifice inflammation in ulcerative colitis.

MALT lymphoma of the colon: a clinicopathological review

2020 ◽  
Vol 73 (7) ◽  
pp. 378-383 ◽  
Author(s):  
Norris Hollie ◽  
Saja Asakrah
Keyword(s):  
Malt Lymphoma ◽  
Lymphoid Tissue ◽  
Marginal Zone ◽  
Cell Lymphoma ◽  
Polypoid Lesion ◽  
B Cell Lymphoma ◽  
Marginal Zone Lymphoma ◽  
Histological Evaluation ◽  
Molecular Features ◽  
Difficult Cases

Extranodal marginal zone lymphoma of mucosa-associated lymphoid tissue (MALT lymphoma) occurs in approximately 9% of non-Hodgkin B cell lymphoma. However, it occurs only rarely within the colon. The presentation is often asymptomatic, and can have multiple endoscopic appearances, including a single or multinodular polypoid lesion. Furthermore, small biopsies can make histological evaluation challenging. The 2016 WHO classification update includes many molecular features of entities and expands the differential diagnosis of lymphoid lesions of the colon. In addition to immunohistochemistry, molecular methods may be tempting to use for small difficult cases. Furthermore, treatment approaches are varied for this entity, and not well studied. Therefore, an updated review on MALT lymphoma of the colon is needed.

scholarly journals Primary Hepatic Extranodal Marginal Zone Lymphoma of Mucosa-Associated Lymphoid Tissue in a Patient with Chronic Hepatitis B Virus Infection: Case Report and Summary of the Literature

Medicina ◽  
2021 ◽  
Vol 57 (3) ◽  
pp. 280
Author(s):  
Yuki Yamashita ◽  
Satoru Joshita ◽  
Hiroyuki Kobayashi ◽  
Shun-ichi Wakabayashi ◽  
Ayumi Sugiura ◽  
...  
Keyword(s):  
Hepatitis B ◽  
Malt Lymphoma ◽  
Lymphoid Tissue ◽  
Marginal Zone ◽  
Disease Diagnosis ◽  
Marginal Zone Lymphoma ◽  
Focal Liver Lesions ◽  
Liver Lesions ◽  
Extranodal Marginal Zone Lymphoma ◽  
Chronic Hepatitis B Virus

Background: The incidence of extranodal marginal zone lymphoma of mucosa-associated lymphoid tissue (MALT lymphoma) is low, at 7–8% of all non-Hodgkin lymphoma cases. The most common site of MALT lymphoma occurrence is the stomach. Primary hepatic extranodal marginal zone lymphoma of MALT is classified as a type of non-gastric MALT lymphoma and is considered extremely rare, with no consensus on imaging study findings or treatment due to a limited number of reports. We herein describe a rare case of primary hepatic extranodal marginal zone lymphoma of MALT with underlying hepatitis B infection (HBV) and present useful diagnostic findings of various imaging modalities, including contrast-enhanced ultrasonography (CEUS) with Sonazoid. Case presentation: A 66-year-old woman was diagnosed as being a non-active carrier of HBV at 51 years of age at the time of total hysterectomy and bilateral adnexectomy for uterine cervical cancer. She was admitted to our hospital following the incidental detection of two focal liver lesions on computed tomography. The lesions were considered malignant based on clinical and other radiologic imaging findings. Her CEUS results of hypo-enhancement in the portal and late phases were consistent with those of previously reported cases of hepatic extranodal marginal zone lymphoma of MALT, and histological liver biopsy findings were compatible with the diagnosis. Conclusions: Primary hepatic extranodal marginal zone lymphoma of MALT is a rare condition that can appear in HBV carriers. Characteristic CEUS findings may help in disease diagnosis. Clinicians should bear primary hepatic extranodal marginal zone lymphoma of MALT in mind when encountering patients with focal liver lesions which exhibit image findings different from those of typical hepatocellular carcinoma.

scholarly journals Adnexal mass secondary to extranodal marginal zone lymphoma of mucosa-associated lymphoid tissue (MALT lymphoma) with associated amyloid deposition

2014 ◽  
Vol 2014 (nov14 1) ◽  
pp. bcr2014206699-bcr2014206699 ◽  
Author(s):  
N. Mehta ◽  
H. Schoder ◽  
A. Chiu ◽  
J. K. Schoolmeester ◽  
C. Portlock
Keyword(s):  
Malt Lymphoma ◽  
Lymphoid Tissue ◽  
Marginal Zone ◽  
Adnexal Mass ◽  
Amyloid Deposition ◽  
Marginal Zone Lymphoma ◽  
Extranodal Marginal Zone Lymphoma

Long-term safety and activity of cladribine in patients with extranodal B-cell marginal zone lymphoma of the mucosa-associated lymphoid tissue (MALT) lymphoma

2015 ◽  
Vol 35 (2) ◽  
pp. 177-186 ◽  
Author(s):  
Barbara Kiesewetter ◽  
Werner Dolak ◽  
Ingrid Simonitsch-Klupp ◽  
Marius E. Mayerhoefer ◽  
Markus Raderer
Keyword(s):  
B Cell ◽  
Malt Lymphoma ◽  
Lymphoid Tissue ◽  
Marginal Zone ◽  
Marginal Zone Lymphoma
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