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KMID : 0357919840180020136
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Korean Journal of Pathology
1984 Volume.18 No. 2 p.136 ~ p.143
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Benign Glandular Inclusions in Pelvic Lymph Nodes -Histopathologic Observation with special reference to histogenesis-
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김용일(金勇一)/Yong Il Kim
조혜제(趙惠濟)/Hae Hae Cho
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Abstract
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Benign glandular inclusions(BGI) are nonneoplastic glandular structures which are not
infrequent in pelvic lymph nodes, and the chance of finding these structures is
dependent on the intensity with which one searches. We examined the pelvic lymph
nodes from total 189 consecutive cases of radical hysterectomy for uterine malignancies
performed at Seoul National University Hospital over a period of two years from
January, 1979 to June, 1981.
These lymph nodes revealed glandular inclusions in fifteen(7.9%) of the 189 cases.
Over 50% of BGI were located either in the capsule or subcapsular portion of lymph
nodes. These were reflected by simple microcysts of tubes with a single layer of
ciliated cuboidal or columnar epithelium which resembles the epithelial cells lining the
endosalpinx, endorservical and endometrial glands. In serial sections of lymph nodes with
benign glandular inclusions, the following characteristic findings were observed.
First, these structures were extending from nodal capsular tissue to the adjacent
subcapsular portion of cortex and often invaginated into the medulla along the fibrous
trabeculae : secondly BGIs were not identifiable within the peripheral sinuses ; thirdly
these were often racemous and communicating: and fourthly, admixture of both serous
and mucinous linings in a same lymph nodes were present.
By these findings we propose that the benign glandular inclusions may be due to a
localized metaplastic proliferation of the peritoneal mesothelium which is derivative of
coelomic epithelium from which the M llerian system originates.
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