title: Successful Treatment of Advanced Primary Cutaneous Apocrine Carcinoma on the Scrotum with Systemic Chemotherapy and Radiotherapy Followed by Denosumab.
abstract: Primary cutaneous apocrine carcinoma (PCAC) is a rare and highly aggressive cutaneous adnexal type of tumor that has a high metastasis rate and a poor prognosis. Although there are several case reports describing the successful treatment of PCAC with chemoradiotherapy or molecular targeting therapy, no standard therapy for the treatment of advanced PCAC has been established yet. Since receptor activator of nuclear factor kappa-B ligand (RANKL) is expressed in cancers of apocrine origin, leading to immunosuppression at the tumor site, we hypothesized that targeting RANKL with denosumab might be useful for the treatment of PCAC. In this report, we describe a case with advanced PCAC on the scrotum successfully treated with systemic chemotherapy using carboplatin and paclitaxel, and radiotherapy followed by denosumab.
authors.affiliation: Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Japan.
authors.forename: Sadanori
authors.initials: S
authors.lastname: Furudate
authors.affiliation: Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Japan.
authors.forename: Taku
authors.initials: T
authors.lastname: Fujimura
authors.affiliation: Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Japan.
authors.forename: Akira
authors.initials: A
authors.lastname: Tsukada
authors.affiliation: Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Japan.
authors.forename: Yota
authors.initials: Y
authors.lastname: Sato
authors.affiliation: Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Japan.
authors.forename: Takanori
authors.initials: T
authors.lastname: Hidaka
authors.affiliation: Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Japan.
authors.forename: Kayo
authors.initials: K
authors.lastname: Tanita
authors.affiliation: Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Japan.
authors.forename: Yumi
authors.initials: Y
authors.lastname: Kambayashi
authors.affiliation: Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Japan.
authors.forename: Takahiro
authors.initials: T
authors.lastname: Haga
authors.affiliation: Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Japan.
authors.forename: Akira
authors.initials: A
authors.lastname: Hashimoto
authors.affiliation: Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Japan.
authors.forename: Setsuya
authors.initials: S
authors.lastname: Aiba
keywords: Chemoradiotherapy; Denosumab; Primary cutaneous apocrine carcinoma; RANKL; Tumor microenvironment