Pediatric Dermatology Glossary
100 terms total — 24 showing — Last updated 15 Sep 2026
linear epidermal nevus
A benign skin lesion characterized by warty, hyperpigmented papules arranged in linear streaks following developmental lines.
lymphatic malformation
A congenital abnormality of lymphatic vessels presenting as fluid-filled cysts or masses.
mastocytoma
A solitary lesion of mastocytosis presenting as a brown or red nodule that may blister when rubbed.
melanocytic nevus
A benign proliferation of melanocytes appearing as a mole, which may be congenital or acquired during childhood.
milia
Small, white, keratin-filled cysts commonly seen on newborn faces that resolve spontaneously.
miliaria
Heat rash caused by blocked sweat ducts, presenting as small vesicles or papules.
miliaria crystallina
The mildest form of heat rash, presenting as tiny, clear, superficial vesicles that rupture easily.
Miliaria rubra
Heat rash characterized by red, inflammatory papulovesicles caused by sweat duct occlusion in the epidermis.
molluscum contagiosum
A common viral skin infection in children caused by a poxvirus, presenting as small, dome-shaped, pearly papules with ce...
Mongolian spots
Benign blue-gray birthmarks commonly found on the sacrum and buttocks of newborns, particularly in Asian and Hispanic po...
Neonatal cephalic pustulosis
A benign self-limiting eruption of papules and pustules on the face and scalp of neonates, associated with Malassezia co...
neonatal lupus
An autoimmune condition in newborns caused by maternal antibodies crossing the placenta, typically presenting with chara...
Netherton syndrome
A rare autosomal-recessive genodermatosis caused by SPINK5 mutations, characterised by ichthyosis linearis circumflexa,...
Nevus sebaceus of Jadassohn
Congenital hairless, yellow-orange plaque typically on the scalp that may develop secondary neoplasms during adolescence...
Nevus simplex
A common vascular birthmark in neonates caused by capillary ectasia, typically appearing on the nape, glabella, or eyeli...
nevus spilus
A speckled lentiginous nevus consisting of a tan patch with darker brown or black spots scattered throughout.
NINDS criteria
Diagnostic criteria established by the National Institute of Neurological Disorders and Stroke for neurocutaneous syndro...
Papular urticaria
Hypersensitivity reaction to insect bites presenting as grouped urticarial papules, commonly seen in young children.
PASI score
Psoriasis Area and Severity Index, a standardized scoring system used to assess the severity and extent of psoriasis in...
patch testing
A diagnostic procedure to identify contact allergens by applying potential irritants to the skin under occlusive patches...
perioral dermatitis
An inflammatory facial rash occurring around the mouth in children, often related to topical corticosteroid use or fluor...
PHACE syndrome
A rare neurocutaneous syndrome characterized by large facial hemangiomas associated with structural malformations of the...
Phakomatosis
Any of a group of neurocutaneous syndromes characterised by hamartomatous lesions affecting the skin, nervous system, an...
PIH
Post-inflammatory hyperpigmentation; darkening of skin following inflammatory conditions, particularly common in darker-...
pilomatricoma
A benign hair follicle tumor presenting as a firm, calcified nodule, most commonly occurring in children and young adult...