title: Agminated syringocystadenoma papilliferum: a new clinical presentation of a rare benign adnexal neoplasm.
abstract: Syringocystadenoma papilliferum is a rare adnexal tumor that often occurs as a solitary tumor in the head and neck region, although occurrences on other anatomical locations have been described. Linear configurations have been described, but an agminated form is a more rare and underreported variant of this tumor. We describe a case of a healthy 10-year old female with agminated syringocystadenoma papilliferum occurring on her left supraclavicular region, with the clinical appearance of grouped molluscum contagiosum papules.Case synopsis A healthy 10-year-old girl was referred for the treatment of a "collection of molluscum contagiosum" of the left supra clavicular region of several years duration. The lesions were asymptomatic and refractory to cryotherapy. The patient was a healthy girl with no significant systemic findings. Cutaneous exam revealed a clustered group of pink, dome shaped, umbilicated papules over a 1.5 x 1 cm area within the left supraclavicular fossa (Figure 1a). An excisional biopsy was performed. Routine H&E stained sections revealed cystic epidermal invaginations with papillary projections. The superficial portions of the cyst were lined by stratified keratinizing epithelium, whereas the deeper papillated portion exhibited a double layer of basal-like cells and luminal eosinophilic columnar cells with focal decapitation secretion. The papillary structures contained fibrovascular cores and lymphoplasmacytic infiltrates. A component of hamartomatous follicular growth was not identified (Figure 1b-d.). A diagnosis was made of agminated syringocystadenoma papilliferum.
authors.affiliation: Weill Medical College of Cornell University.
authors.forename: Kunle
authors.initials: K
authors.lastname: Ogunrinade
authors.forename: Steven H
authors.initials: SH
authors.lastname: Blobstein
authors.forename: Garrett T
authors.initials: GT
authors.lastname: Desman
mesh_terms: D006607:Adenoma, Sweat Gland / Q000473:pathology* / Q000601:surgery; D002648:Child; D005260:Female; D006801:Humans; D013544:Sweat Gland Neoplasms / Q000473:pathology* / Q000601:surgery