Dermoscopy of a rare case of linear syringocystadenoma papilliferum with review of the literature

Abstract

Syringocystadenoma papilliferum (SCAP) is a benign hamartomatous tumor arising from pluripotent cells with either apocrine or eccrine differentiation. We report a rare case of de novo linear SCAP in a 12-year-old female child with lesions over the chest along with the dermoscopic findings.

Reflectance confocal microscopic findings of a tiny syringocystadenoma papilliferum

“…The reports describing the dermoscopic features of SCAP are limited in the published literature 1, 2, 3, 4, 5. In these cases, SCAP lesions were mostly associated with nevus sebaceous2, 3, 4, 5 except 1 case of linear SCAP 1 . The dermoscopic features of SCAP described in those reports were exophytic papillary structures with central depression/erosion/crust/ulceration and vascular structures (hairpin, polymorphous, or comma vessels) on a milky red or erythematous background.…”

Dermoscopic clues to syringocystadenoma papilliferum

“…Polymorphic vessels can be appreciated within the darker ulcerated areas. [ 5 ] We noted multiple, bluish-white to reddish-white, structureless areas with central umbilication and polymorphic vessels. Whitish scaling and yellowish crusting were also noted in our patient.…”

“…The dermoscopic findings of syringocystadenoma papilliferum and its differentials are summarized in Table 1 . [ 5 6 ] Treatment options of SCAP include surgical excision or ablation with CO 2 laser.…”

Enlarging facial tumor in a teenager

“…A linear configuration is noted in a subset of patients, particularly involving the head and neck. 4 Syringocystadenoma papilliferum most commonly presents as an isolated growth without association with other common benign adnexal tumors. Approximately one-third of cases arise from a preexisting nevus sebaceous.…”

“…As noted in our patient, these can enlarge and become more noticeable during puberty. A linear configuration is noted in a subset of patients, particularly involving the head and neck 4 …”