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Skin - Nonmelanocytic tumors

Adnexal tumors - eccrine sweat glands

Syringocystadenoma papilliferum

Reviewer: Christopher Hale, M.D. (see Reviewers page)
Revised: 5 July 2012, last major update June 2012
Copyright: (c) 2001-2012, PathologyOutlines.com, Inc.

General
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● Also known as papillary syringadenoma
● Warty tumor of scalp, neck and face that occurs at any age
● Slow growing or a recent change in an apparent birthmark
● 1/3 have adjacent nevus sebaceous, 10% have adjacent basal cell carcinoma
● Eccrine syringofibroadenoma: with prominent fibrous stroma
● Syringocystadenocarcinoma papilliferum: malignant counterpart

Clinical images
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Various images

Micro description
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● Glandular papillary proliferation connected to skin surface, dense plasma cell infiltrate

Micro images
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Various images

Positive stains
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● Plasma cells are IgA+, IgG+

End of Skin - Nonmelanocytic tumors > Adnexal tumors - eccrine sweat glands > Syringocystadenoma papilliferum

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