エピテリオイド繊維性ヒステオシトーマは,深層の皮膜と皮下脂肪組織を含む
Anum Dileep1, Shawn E Cowper2,3, Gauri Panse2,3
1Department of Pathology and Laboratory Medicine, Hartford Hospital, Hartford, Connecticut, USA.
Journal of cutaneous pathology
|February 15, 2026
まとめ
エピテリオイド繊維性ヒスティオサイトーマ (EFH) の皮膚の深い部位への関与は稀である. この研究では,皮膚の深い層にあるノドーラ性EFHの3つの症例を強調し,診断のためのALK免疫ヒスト化学を強調しています.
科学分野:
- 皮膚病理学 皮膚病理学について
- 腫瘍学 腫瘍学
- ヒストロジー ヒストロジー ヒストロジー ヒストロジー ヒストロジー ヒストロジー ヒストロジー
背景:
- エピテリオイド繊維性ヒスティオシトーマ (EFH) は,通常,表皮のコラーレットで表面皮質に現れます.
- 深い皮膚または皮膚の下部への関与は,EFHの珍しいプレゼンテーションです.
研究 の 目的:
- 深層の皮膚および皮下組織を含むノドーラー表皮状繊維性ヒスティオサイトーマの3つの症例を記述する.
- ALK免疫ヒストケミストリーの診断的有用性を強調し,EFHの異常な変種を特定する.
主な方法:
- 3つの結節性病変の組織病理学的検査.
- 膀核とエオシノフィルの細胞質を持つ上皮細胞を含む細胞形態の分析.
- ALKの免疫ヒスト化学を細胞のラベリングパターンを評価するために適用する.
主要な成果:
- 3人の患者全員に深層の皮膚/皮膚下結節が見られた.
- 特徴的な上皮細胞の特徴とALKの免疫反応性が観察されました.
- 病変は0.8cmから2.0cmの範囲で,成人では体幹や ekstremitiesで発生しました.
結論:
- これらの症例は,上皮状繊維性ヒスティオサイトマの既知の形態学的スペクトルを拡張します.
- ALKの免疫ヒストケミストリーは,深層皮質のEFH変種とミミックの区別に不可欠です.
- 長期フォローアップ (4.5~23年) では,報告された症例において再発は認められなかった.
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