Ann Dermatol.  2011 Oct;23(Suppl 2):S151-S154. 10.5021/ad.2011.23.S2.S151.

Syringocystadenoma Papilliferum of the Back Combined with a Tubular Apocrine Adenoma

  • 1Department of Dermatology, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Incheon, Korea.


Syringocystadenoma papilliferum (SCAP) and tubular apocrine adenoma (TAA) are rare benign sweat gland tumors. SCAP and TAA may have a histopathologic overlap, but few cases of a SCAP combined with a TAA have been reported. Herein we describe an unusual case of a SCAP co-existing with a TAA located on the back of a 12-year-old girl.


Back; Syringocystadenoma papilliferum; Tubular apocrine adenoma

MeSH Terms

Sweat Glands


  • Fig. 1 An erythematous well-defined and papillomatous plaque with superficial erosion and crust on the left side of the lower back.

  • Fig. 2 Views of the tumor. (A) The upper portion of the tumor had a cystic invagination that extends downward from the epidermis, and the lower portion exhibited islands of irregular-shaped tubular structures in the deep dermis at the excision specimen (H&E, ×20). (B) Two different epithelial cell layers lining the invaginated area and papillary projections in the upper portion of tumor. The luminal row consisted of high columnar cells showing active decapitation secretion, and the outer row consisted of small cuboidal cells. There was stromal infiltration of many plasma cells (H&E, ×400). (C) The numerous cystic and branching tubular structures in the dermis surrounded by a paucicellular fibrous stroma. The tubular structures have a dual or multilayered epithelium and the luminal cells showing evidence of active decapitation secretion in the dermis (H&E, ×100).


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