Lymphatic invasion of nevus cells observed in intradermal nevus.

Abstract	A pigmented nevus was observed on the medial aspect of the left scapula of a 30-year-old woman. Histologically, the lesion showed the pattern of a typical intradermal nevus, consisting of type A, B and C cells. However, the most characteristic feature of this intradermal nevus was the projection of polypoid masses of nevus cells containing melanin into the lumen of a lymphatic vessel in the upper dermis. To our knowledge, lymphatic invasion in pigmented nevi is rare; this finding is interesting, if we consider the relationship between nevus cells and lymph nodes.
Authors	M Katsumata, T Matsunaga, R Maruyama, K Ezoe
Journal	The Journal of dermatology (J Dermatol) Vol. 17 Issue 4 Pg. 264-5 (Apr 1990) ISSN: 0385-2407 [Print] England
PMID	2365905 (Publication Type: Case Reports, Journal Article)
Chemical References	Melanins
Topics	Adult Female Humans Lymph Nodes (pathology) Melanins Neoplasm Invasiveness Nevus, Pigmented (etiology, pathology) Skin Neoplasms (etiology, pathology)

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