Abstract:
AIMS:Rare gastric lesions composed of a combined proliferation of chief and oxyntic cells have been variably called adenocarcinoma of fundic gland type and oxyntic gland polyp/adenoma. Herein, we present a series of cases that show a morphological spectrum of chief and oxyntic cell proliferations. METHODS AND RESULTS:Routine and consultation cases were collated from five institutions. Information regarding site, size, endoscopic appearance, clinical history and medication use, when available, was accrued, as was the histological features and immunoprofiles. A total of 12 cases were collated. Age ranged from 39 to 81 years. All the lesions were located in the fundus; seven of eight were polypoid lesions endoscopically. Lesions were primarily solitary, averaged 4.6 mm in diameter (largest 9 mm) and comprised >50% chief cells. The predominant architectural pattern was of anastomosing and solid and clustered glands or a mixture of these patterns. Lesions were limited mainly to the mucosa, although two showed submucosal involvement. None had known metastatic disease. CONCLUSIONS:This series included lesions that were previously described as gastric adenocarcinoma of fundic gland type and oxyntic gland polyp/adenoma. They are located exclusively in the fundus and composed predominantly of chief cells with low-grade cytology and appear to show a morphological continuum.
journal_name
Histopathologyjournal_title
Histopathologyauthors
Chan K,Brown IS,Kyle T,Lauwers GY,Kumarasinghe MPdoi
10.1111/his.12859subject
Has Abstractpub_date
2016-05-01 00:00:00pages
825-33issue
6eissn
0309-0167issn
1365-2559journal_volume
68pub_type
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