上唇に発生したPoroid hidradenomaの1例 −本邦における報告例に関する文献的考察−

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  • A case of poroid hidradenoma of the upper lip: a review of the literature on Japanese cases
  • 上唇に発生したPoroid hidradenomaの1例 : 本邦における報告例に関する文献的考察
  • ウワクチビル ニ ハッセイ シタ Poroid hidradenoma ノ 1レイ : ホンポウ ニ オケル ホウコクレイ ニ カンスル ブンケンテキ コウサツ

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Poroid hidradenoma is a relatively rare cutaneous adenexal tumor and a subtype of poromas derived from eccrine sweat ducts, with both solid and cystic components confined entirely to the dermis, with no connection to the epidermis. Most cases of this tumor arise in the extremities and trunk, and poroid hidradenoma occurring in the orofacial region has not been reported previously. We present a case of poroid hidradenoma arising in the upper lip and review the literature on Japanese cases. A 82-year-old woman was referred for treatment of a painless mass on the upper lip. Magnetic resonance imaging showed a ball-like mass measuring 18×12×12mm in the upper lip. Histopathological examination of a biopsy specimen revealed a cutaneous adenexal benign tumor suspected to be a poroma, and the extirpated tumor was diagnosed to be a poroid hidradenoma. Although most cases of poroid hidradenoma have been treated by dermatologists or plastic surgeons, we should be aware that this tumor can arise in the oral region, especially the lip or cheek.

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