Transient Neonatal Pustular Melanosis
Fig. 24.1 Pustules and denuded lesions with residual discoloration in a Mexican infant (photo courtesy of Carola Duran McKinster) Lastly, within hours of exposure to the atmospheric environment, the central…
Ashy Dermatosis or Erythema Dyschromicum Perstans
Fig. 9.1 Slate-gray patches affecting the neck (courtesy of Carola Duran McKinster, MD) Fig. 9.2 Ashy gray macules and patches affecting the face and neck (courtesy of Carola Duran McKinster,…
Pseudofolliculitis Barbae
Fig 17.1 Beard area of a young Hispanic adult male demonstrating follicles papules and pustules, as a result of shaving Clinical and Pathogenesis Papules and pustules occur over the chin…
Acne Keloidalis Nuchae
Fig. 16.1 Clinical appearance of acne keloidalis nuchae in a 17-year-old male with disease for 2 years. Note the presence of lichenified plaques, papules, and keloidal lesions developing over the…
Exogenous Ochronosis
• Hydroquinone • Resorcinol • Phenol • Benzene Clinical Presentation Asymptomatic Classified according to severity Dermatoscopy may be useful Exogenous ochronosis presents as asymptomatic brown-gray or blue-black pigmentation on photoexposed…
Pigmentary Mosaicism
Fig. 8.1 Linear and whorled nevoid hypermelanosis. A form of pigmentary mosaicism that follows the lines of Blaschko Fig. 8.2 Pigmentary mosaicism in a lateralization pattern. (a) Front view and…
Developmental Biology of Black Skin, Hair, and Nails
Race Pigmentary differences Black (in the USA: African American or Afro Caribbean) Large (Stage IV) melanosomes Eumelanin constitutes majority of pigment production Closely packed doublet or singlet melanosomes, rare aggregatesa…
Nevus of Ota and Nevus of Ito
Fig. 7.1 Nevus of Ota affecting the temple, maxillary area, and sclera of the skin Fig. 7.2 Nevus of Ito Epidemiology Nevus of Ota and nevus of Ito are sporadic…
Development and Biology of East Asian Skin, Hair, and Nails
(1) KK Women’s & Children’s Hospital, Singapore, Singapore Abstract People of skin of color comprise the majority of the world’s population and Asian people comprise more than half of…
Pharmacokinetics and Pharmacodynamics in the Pediatric Population
However, in all species studied, including humans, the log of basal metabolic rate (BMR) plotted against the log of body weight produces a straight line with a slope of ¾….
