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1. 色素細胞性母斑（ほくろ）以外の良性色素性皮膚病変 benign pigmented skin lesions other than melanocytic nevi moles
2. 皮膚の良性病変の概要 overview of benign lesions of the skin
3. 表皮母斑および表皮母斑症候群 epidermal nevus and epidermal nevus syndrome
4. 新生児および乳児における皮膚および頭皮の良性病変 benign skin and scalp lesions in the newborn and young infant
5. 非定型母斑（異形成母斑） atypical dysplastic nevi

Magaña M1, Sánchez-Romero E, Magaña P, Beck-Magaña A, Magaña-Lozano M.
The American Journal of dermatopathology.Am J Dermatopathol.2015 Jan;37(1):31-7. doi: 10.1097/DAD.0000000000000183.
: Congenital melanocytic nevus (CMN) is a hamartomatous disease for which many attempts at classification have been proposed. This disease is relevant not only because of its functional and esthetic implications but also because it is a well-documented precursor to malignant melanoma. We performed a
PMID 25140664

A Comparative Study of Proliferative Nodules and Lethal Melanomas in Congenital Nevi From Children.

Yélamos O1, Arva NC, Obregon R, Yazdan P, Wagner A, Guitart J, Gerami P.
The American journal of surgical pathology.Am J Surg Pathol.2014 Dec 16. [Epub ahead of print]
Differentiating proliferative nodules (PNs) from melanomas arising in congenital nevi (CN) is a considerable challenge for dermatopathologists. Most of the specimens dermatopathologists assess that deal with this differential diagnosis involve proliferations of melanocytes arising in the dermis. In
PMID 25517953

Chen J1, Chen L, Duan Y, Li D, Dong B.
The Journal of dermatology.J Dermatol.2014 Dec 16. doi: 10.1111/1346-8138.12735. [Epub ahead of print]
Connective tissue nevi represents a kind of hamartoma, and coalescence of the lesions in a cerebriform mode in the lumbar region without Proteus syndrome is rarely seen. Here, we report a 26-year-old woman presenting with nodules and plaques in her left lumbar region of 26 years in duration. Histop
PMID 25512235

山口由佳,清原隆宏,飯野志郎,吉田正美
Skin Cancer 28(3), 279-282, 2014
57歳，男性。左足底円蓋部内側縁に，5mm大で不整形のやや濃淡差のある黒色斑がある。病理組織学的に表皮は不規則に肥厚あるいは萎縮しており，真皮浅層には軽度の炎症細胞，メラニン色素がやや不規則に分布している。軽度の異型性を有する個別性メラノサイトが基底層から表皮中層まで不均一に増殖しているが，一部の表皮突起先端には少数の境界明瞭な胞巣を形成している。HE所見からは足底母斑かメラノーマかの鑑別は困難で …
NAID 130004697516

那須隆,窪田俊憲,吉崎直人
耳鼻咽喉科臨床 107(4), 303-307, 2014
… We report herein on a patient with a bulky nevus cell nevus in the external auditory canal. … As its appearance was skin-colored, it was difficult for us to make a diagnosis of nevus cell nevus at first view. … It was diagnosed as a dermal nevus by a dermatologist at our hospital. …
NAID 130003395643

上尾礼子,爲政大幾,田中美紀,太田馨,岡本祐之,永田基樹,藤澤琢郎,小西将矢,新田匡幸
Skin Cancer 28(2), 190-194, 2013
… 前医での切除標本病理組織像では，真皮から皮下にメラニン色素を有する異型細胞の増殖を認めたが，表皮内に異型メラノサイトはみられずprimary dermal melanomaと診断した。 … 皮下の腫瘤はin－transit転移であり，耳下腺内リンパ節にも転移が認められたことからprimary dermal melanoma，pTN3M0，stage IIIcと診断した。 …
NAID 130003396873