Korean J Pathol.
2001 Jun;35(3):245-247.
Nevus Cell Inclusions in the Lymph Node: A Report of Two Cases
- Affiliations
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- 1Department of Pathology, Yonsei University Wonju College of Medicine, Wonju 220-701, Korea, pathol@wonju.yonsei.ac.kr
- 2Yonsei University College of Medicine, Seoul
- 3Konyang University College of Medicine, Daejun, Korea
Abstract
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Nevus cell inclusion in the lymph node is an uncommon histologic finding and usually is
an incidental finding in the capsule, fibrous trabeculae, perinodal adipose tissue, and
parenchyma of the axillary, inguinal, or cervical lymph nodes which are removed as part
of cancer diagnostic or therapeutic procedures. The aggregated pigmented nevus cells in
the lymph node resemble the cells of the cutaneous nevi. It is important to differentiate
them from metastatic carcinoma or malignant melanoma. The characteristic features of
nevus cell inclusions are presence of nevus cells within the capsule and supporting
stroma, without presence in the marginal sinus of the lymph node, and the absence of
cytological atypia or mitosis of nevus cells. We report two cases of nevus cell
inclusions, in the axillary lymph nodes in a patient with breast carcinoma and in an
enlarged inguinal lymph node in a patient without a malignant tumor.