ABSTRACT Waardenburg syndrome is a rare congenital genetic disorder characterized by sensorineural hearing loss and pigmentary abnormalities of the hair, skin, and eyes. Based on the different clinical presentations, it is divided into four subtypes as in WS1 to WS4. This report describes a 15-year-old b...
Introducción: El método científico es un método general, constituido por varias etapas necesarias en el desarrollo de toda investigación científica. Es la forma de abordar la realidad y estudiar los fenómenos de la naturaleza, para descubrir su esencia y sus interrelaciones. El método clínico es...
Abstract: Purpura is defined as a visible hemorrhage in the skin or mucosa, which is not evanescent upon pressure. Proper classification allows a better patient approach due to its multiple diagnoses. Purpuras can be categorized by size, morphology, and other characteristics. The course varies according ...
ABSTRACT Bilateral acute depigmentation of the iris (BADI) is a new clinical entity of unknown etiology and is characterized by bilateral, symmetrical, and simultaneous depigmentation of the iris with focal or diffuse stromal atrophy; this condition generally has a good prognosis. We present a case of a ...
La dermatosis cenicienta es un trastorno pigmentario infrecuente que se presenta en individuos de piel morena, especialmente en centroamericanos. Las lesiones consisten en manchas hiperpigmentadas de coloración gris-azulada, principalmente localizadas en la cara, tronco y brazos. Su principal diagnósti...
El liquen aureus es una dermatosis purpúrica pigmentaria crónica.
Se caracteriza por la presencia de máculas, pápulas y placas de
color marrón dorado, localizadas en los miembros inferiores. A
nivel histológico se observaz un infiltrado linfocítico liquenoide
y perivascular, con extravasación de ...
Pigmentary demarcation lines are physiologically abrupt transition lines from areas of deeper pigmentation to less pigmented areas. They are most often seen in African and Japanese individuals and rarely observed in Caucasians. There are eight types of pigmentary demarcation lines. The one described here...
