Pigmentary Disorders — Flashcards

Flashcard 31: _____ maybe seen in lichen planus as the melanin from epidermis gradually moves into the dermis as a result of degeneration of keratinocytes

Answer: Pigmentary incontinence

Flashcard 32: _____dermal melasma - appears light brown and shows enhanced color contrast with Wood's lamp.

Answer: Epidermal

Flashcard 33: Which disease presents with hyperpigmented atrophic macules on the hand dorsa and  pits on the palms and soles with abnormal dermatoglyphics?_____

Answer: Reticulate acropigmentation of Kitamura 

Flashcard 34: What is the most frequent form of diffuse hypopigmentation worldwide?_____

Answer: Oculocutaneous albinism

Flashcard 35: Hypomelanosis of Ito is seen as cutaneous macular hypopigmented whorls, streaks and patches, corresponding to the lines of _____

Answer: Blaschko

Flashcard 36: First-line treatment for freckles is the use of a _____.

Answer: broad-spectrum sunscreen

Flashcard 37: Nevus of _____ presents as a unilateral blue-greyish hyperpigmented macule involving the shoulder and supraclavicular region, commonly in Chinese or Japanese populations.

Answer: Ito

Extra: • **Nevus of Ota**: Involves the face (distribution of the ophthalmic and maxillary branches of the trigeminal nerve). • **Nevus of Ito**: Involves the shoulder, side of the neck, and supraclavicular area (acromioclavicular region).

Flashcard 38: Hypopigmentation with perifollicular pigmentary retention (hyperpigmentation), also known as "salt and pepper" skin pigmentation is seen in _____

Answer: systemic sclerosis (connective tissue disorder)

Flashcard 39: Café-au-lait macules in neurofibromatosis usually spare the _____

Answer: face

Flashcard 40: Naevus of Ota is an extensive, _____, patchy, dermal melanocytosis

Answer: bluish (colour)