Über die Entstehung der sogenannten kongenitalen Mißbildungen der Haut

Segmental hypomelanosis and hypermelanosis arranged in a checkerboard pattern are distinct naevi: flag‐like hypomelanotic naevus and flag‐like hypermelanotic naevus

“…Lesions were always unilateral and were single in all but two systematized cases . Fifty‐one cases (68.9%) actually showed typical checkerboard pattern features (i.e.…”

“…On the other hand, when featuring leaf‐like patches, they are part of a syndrome named ‘phylloid hypomelanosis’, reflecting mosaic trisomy 13q . Most other cases of hypopigmented naevi have been defined as ‘naevus depigmentosus’, probably after a 1919 paper by Meirowsky . Another term, ‘achromic naevus’ (or ‘naevus achromicus’) never met a lot of success, despite the fact that it was used in a remarkable paper by Coupe, who systematically reviewed the literature and proposed diagnostic criteria (i): unilateral lack of pigment in a systematized distribution; (ii): presence since birth or onset early in life; (iii): no alteration in distribution of the non‐pigmented areas throughout life; (iv): no alteration in the texture, or change in sensation in the affected area; and (v): no hyperpigmented border around the achromic area) .…”

Unilateral Systematized Achromic Naevus

“…It is doubtful whether naevus anaeinicus is ever seen in a system a tized distribution, though Meiroivsky [30] stated without elaboration th a t he had described a case involving nearly the whole body. It can be distinguished from an achromic naevus by diascopy.…”

Tierfellnävus - aus Versehen? Historische Konzepte zur Entstehung von Muttermalen

“…Falls sie trotz aller Vorsicht etwas Gräßliches sieht oder erschrickt, dann soll sie die Hände sofort an den Gürtel nehmen und möglichst schnell wegschauen oder dann aber ganz lange hinschauen, um sich so wieder zu beruhigen. Heftigen Gelüsten ist wenn möglich nachzugeben [ Rückschläge, in denen die urtümliche Eigenschaften, die im Menschen noch stecken, wieder zum Vorschein kommen [6]. Meirowsky sammelt alle bis dahin publizierten Fälle von ausgedehnten Muttermalen und ergänzt diese mit eigenen Beobachtungen.…”