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ABD Pediatric Dermatology study materials
ABD Pediatric Dermatology study resources

ABD Pediatric Dermatology practice questions

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Question 1Pediatric Dermatology

A 3-day-old term newborn has blanching erythematous macules and small yellow papules on the trunk and face, sparing the palms and soles. The infant is feeding well and afebrile. What is the most likely diagnosis?

  1. Neonatal herpes simplex infection
  2. Transient neonatal pustular melanosis
  3. Congenital candidiasis
  4. Erythema toxicum neonatorum Correct answer.

Explanation

Erythema toxicum neonatorum is a benign, self-limited eruption of blotchy erythema with central yellow papules or pustules appearing in the first days of life in term infants, with eosinophils on smear. It spares palms and soles and requires no treatment.

Question 2Pediatric Dermatology

Which finding best distinguishes seborrheic dermatitis of infancy from atopic dermatitis?

  1. Association with asthma and allergic rhinitis
  2. Intense pruritus with flexural lichenification
  3. Onset after 2 years of age
  4. Presence of greasy yellow scale on the scalp and intertriginous areas with relative sparing of extensor surfaces Correct answer.

Explanation

Infantile seborrheic dermatitis favors the scalp (cradle cap), face, and diaper area with greasy yellow scale and is typically not very pruritic. Atopic dermatitis in infants favors cheeks and extensor surfaces and is intensely pruritic.

Question 3Pediatric Dermatology

A 6-year-old has hypopigmented, slightly scaly macules on the trunk with fine bran-like scale. A potassium hydroxide preparation shows short hyphae and spores. What is the treatment of choice?

  1. Oral griseofulvin for 6 weeks
  2. Topical corticosteroid
  3. Oral acyclovir
  4. Topical selenium sulfide or topical azole Correct answer.

Explanation

Pityriasis versicolor is caused by Malassezia and responds to topical selenium sulfide or topical azole antifungals. It is superficial and does not require systemic therapy in most cases.

Question 4Pediatric Dermatology

Which feature most strongly suggests tinea capitis rather than alopecia areata in a child with patchy hair loss?

  1. Pitting of the nails
  2. Smooth well-demarcated patches with exclamation-point hairs
  3. Comma-shaped hairs and black dots on trichoscopy with scaling and lymphadenopathy Correct answer.
  4. Family history of autoimmune thyroid disease

Explanation

Tinea capitis often shows scaling, broken hairs, and comma or corkscrew hairs on trichoscopy, sometimes with occipital lymphadenopathy. Alopecia areata shows smooth patches with exclamation-point hairs and nail pitting.

Question 5Pediatric Dermatology

A 4-year-old presents with honey-colored crusted lesions around the nose and mouth. What is the most appropriate first-line topical therapy for limited impetigo?

  1. Mupirocin ointment Correct answer.
  2. Hydrocortisone cream
  3. Clotrimazole cream
  4. Permethrin cream

Explanation

Nonbullous impetigo is usually caused by Staphylococcus aureus or Streptococcus pyogenes, and limited disease responds to topical mupirocin or retapamulin. Widespread disease may require oral antibiotics.

Question 6Pediatric Dermatology

A child with atopic dermatitis develops grouped vesicles on an erythematous base in areas of eczema and is febrile and lethargic. What is the most likely diagnosis?

  1. Staphylococcal scalded skin syndrome
  2. Eczema herpeticum Correct answer.
  3. Molluscum contagiosum
  4. Contact dermatitis

Explanation

Eczema herpeticum is a disseminated HSV infection occurring in disrupted skin barrier such as atopic dermatitis, presenting with monomorphic vesicles, fever, and systemic illness. It is a medical emergency requiring antivirals.

Question 7Pediatric Dermatology

Which organism is the most common cause of cellulitis in children following a skin abrasion?

  1. Candida albicans
  2. Pseudomonas aeruginosa
  3. Mycoplasma pneumoniae
  4. Staphylococcus aureus Correct answer.

Explanation

Staphylococcus aureus and Streptococcus pyogenes are the leading causes of bacterial cellulitis in children. Empiric therapy should cover these organisms.

Question 8Pediatric Dermatology

A 9-year-old has intensely pruritic burrows in the web spaces of the fingers with nocturnal worsening. What is the treatment of choice?

  1. Oral fluconazole for 2 weeks
  2. Topical mupirocin twice daily
  3. Topical calcineurin inhibitor
  4. Permethrin 5% cream applied to the whole body and left on for 8 to 14 hours Correct answer.

Explanation

Scabies is caused by Sarcoptes scabiei and is treated with topical permethrin applied neck-down (or whole body in infants) and left on for 8 to 14 hours, with treatment of close contacts.

Question 9Pediatric Dermatology

A 2-year-old with a history of recurrent respiratory papillomatosis has small skin-colored, filiform lesions on the face. Which virus is responsible?

  1. Parvovirus B19
  2. Human papillomavirus Correct answer.
  3. Herpes simplex virus type 2
  4. Varicella-zoster virus

Explanation

Cutaneous warts are caused by human papillomavirus, and some subtypes are also responsible for recurrent respiratory papillomatosis. Warts are common in children and often resolve spontaneously.

Question 10Pediatric Dermatology

Which of the following is the most characteristic finding of pityriasis rosea in children?

  1. Centrifugally spreading annular plaques with trailing scale
  2. Grouped vesicles along a dermatome
  3. A herald patch followed by a Christmas-tree distribution of oval scaly macules on the trunk Correct answer.
  4. Silvery scale on extensor surfaces

Explanation

Pityriasis rosea typically begins with a herald patch, followed by oval salmon-colored macules with peripheral collarette scale distributed along the lines of cleavage on the trunk. It is self-limited.

Question 11Pediatric Dermatology

A 10-year-old has well-demarcated erythematous plaques with silvery scale on the elbows and knees and nail pitting. Which condition is most likely?

  1. Psoriasis Correct answer.
  2. Atopic dermatitis
  3. Tinea corporis
  4. Lichen simplex chronicus

Explanation

Psoriasis presents with well-demarcated erythematous plaques with silvery scale on extensor surfaces such as elbows and knees, and nail pitting is a common associated finding.

Question 12Pediatric Dermatology

A 12-year-old girl has acne with comedones and inflammatory papules on the face. Which topical agent is considered first-line comedolytic therapy?

  1. Topical tretinoin Correct answer.
  2. Oral prednisone
  3. Topical clindamycin alone
  4. Topical hydrocortisone

Explanation

Topical retinoids such as tretinoin are first-line for comedonal and inflammatory acne because they normalize follicular keratinization. They are often combined with benzoyl peroxide or topical antibiotics.

Question 13Pediatric Dermatology

A 7-year-old has multiple 2 to 4 mm dome-shaped, umbilicated papules on the trunk and axillae. What is the most likely diagnosis?

  1. Seborrheic keratosis
  2. Basal cell carcinoma
  3. Molluscum contagiosum Correct answer.
  4. Verruca vulgaris

Explanation

Molluscum contagiosum is a poxvirus infection producing discrete, dome-shaped, umbilicated papules, common in children and often self-resolving.

Question 14Pediatric Dermatology

A newborn has a large, sharply demarcated violaceous plaque on the face that is present at birth and does not involute. Which vascular anomaly is most likely?

  1. Infantile hemangioma
  2. Pyogenic granuloma
  3. Salmon patch
  4. Port-wine stain Correct answer.

Explanation

Port-wine stains are capillary malformations present at birth that grow proportionally with the child and do not involute. Facial lesions may warrant evaluation for Sturge-Weber syndrome.

Question 15Pediatric Dermatology

A 6-month-old has a rapidly growing bright red nodule on the lip that appeared at 3 weeks of age. What is the most likely diagnosis?

  1. Congenital melanocytic nevus
  2. Infantile hemangioma Correct answer.
  3. Lymphangioma circumscriptum
  4. Kaposiform hemangioendothelioma

Explanation

Infantile hemangiomas are the most common vascular tumors of infancy, typically appearing in the first weeks of life and undergoing rapid proliferation followed by involution.

Question 16Pediatric Dermatology

A child with large segmental facial port-wine stain should be evaluated for which associated condition?

  1. Neurofibromatosis type 1
  2. Sturge-Weber syndrome Correct answer.
  3. Tuberous sclerosis
  4. Peutz-Jeghers syndrome

Explanation

Port-wine stains in the distribution of the ophthalmic (V1) trigeminal nerve can be associated with leptomeningeal and ocular vascular malformations in Sturge-Weber syndrome, warranting ophthalmologic and neurologic evaluation.

Question 17Pediatric Dermatology

Which of the following is the most common trigger for anaphylaxis in young children?

  1. Beta-lactam antibiotics
  2. Foods such as milk, egg, and peanut Correct answer.
  3. Latex gloves
  4. Insect stings

Explanation

Food is the leading cause of anaphylaxis in children, with milk, egg, peanut, and tree nuts among the most common triggers.

Question 18Pediatric Dermatology

An 8-year-old develops symmetric, targetoid lesions on the dorsal hands and feet, oral erosions, and fever after starting an antibiotic. What is the most likely diagnosis?

  1. Erythema multiforme major Correct answer.
  2. Scabies
  3. Urticaria
  4. Pityriasis rosea

Explanation

Erythema multiforme is characterized by target lesions with a dusky center, often triggered by infections (especially HSV) or medications, and can involve mucous membranes in the major form.

Question 19Pediatric Dermatology

Which finding is most consistent with a diagnosis of Stevens-Johnson syndrome in a child?

  1. Widespread targetoid macules with epidermal detachment of less than 10% of body surface area and mucosal erosions Correct answer.
  2. Localized honey-colored crusts
  3. Annular plaques with central clearing
  4. Chronic flexural lichenification

Explanation

Stevens-Johnson syndrome is a severe mucocutaneous reaction with epidermal detachment of less than 10% of body surface area, often drug-triggered, and requires urgent discontinuation of the culprit agent.

Question 20Pediatric Dermatology

A child with a history of atopic dermatitis and asthma has recurrent pruritic papules on the extensor surfaces. Which underlying mechanism best explains the atopic dermatitis?

  1. Autoantibodies against desmoglein 1 and 3
  2. Defective neutrophil oxidative burst
  3. Impaired skin barrier with filaggrin deficiency and Th2-predominant inflammation Correct answer.
  4. Deficiency of adenosine deaminase

Explanation

Atopic dermatitis involves barrier dysfunction, often with filaggrin mutations, and a Th2-skewed immune response, which predisposes to colonization by Staphylococcus aureus.

Question 21Pediatric Dermatology

A 3-year-old has a sharply demarcated, erythematous diaper-area eruption sparing the deep creases. What is the most likely diagnosis?

  1. Seborrheic dermatitis
  2. Candidal diaper dermatitis
  3. Irritant contact diaper dermatitis Correct answer.
  4. Psoriasis

Explanation

Irritant diaper dermatitis results from prolonged contact with urine and feces and typically spares the deep creases, whereas candidiasis involves the creases with satellite pustules.

Question 22Pediatric Dermatology

A 5-year-old with a history of sore throat develops petechiae on the lower legs and palpable purpura on the buttocks. What is the most likely diagnosis?

  1. Idiopathic thrombocytopenic purpura
  2. Meningococcemia
  3. Erythema nodosum
  4. IgA vasculitis (Henoch-Schönlein purpura) Correct answer.

Explanation

IgA vasculitis presents with palpable purpura, often on the lower extremities and buttocks, and may follow an upper respiratory infection, with potential renal and gastrointestinal involvement.

Question 23Pediatric Dermatology

Which of the following best describes the classic presentation of erythema infectiosum (fifth disease)?

  1. Diffuse erythroderma with desquamation
  2. Painful oral ulcers with fever
  3. Vesicular rash in a dermatomal distribution
  4. Slapped-cheek erythema followed by lacy reticular rash on the trunk and limbs Correct answer.

Explanation

Erythema infectiosum is caused by parvovirus B19 and classically produces bright red cheeks followed by a lacy reticular rash on the trunk and extremities.

Question 24Pediatric Dermatology

A child presents with high fever followed by a diffuse erythematous rash and then desquamation of the fingertips and perineum. Which condition should be considered?

  1. Kawasaki disease Correct answer.
  2. Measles
  3. Rubella
  4. Scarlet fever

Explanation

Kawasaki disease is a medium-vessel vasculitis of childhood presenting with prolonged fever, conjunctivitis, mucosal changes, rash, and extremity changes including desquamation, and it requires prompt treatment to prevent coronary artery complications.

Question 25Pediatric Dermatology

A 14-year-old has multiple hypopigmented, well-demarcated macules on the trunk with reduced sensation. What is the most likely diagnosis?

  1. Pityriasis alba
  2. Tinea versicolor
  3. Vitiligo
  4. Leprosy (Hansen disease) Correct answer.

Explanation

Hypopigmented anesthetic macules are characteristic of tuberculoid leprosy, which should be suspected in endemic areas and confirmed with biopsy and skin slit smear.

Question 26Pediatric Dermatology

A newborn is noted to have a flat, salmon-colored patch on the nape of the neck and another on the upper eyelid. The lesions blanch with pressure and have been present since birth. What is the most likely diagnosis?

  1. Congenital melanocytic nevus
  2. Nevus simplex Correct answer.
  3. Port-wine stain
  4. Infantile hemangioma

Explanation

Nevus simplex (salmon patch, stork bite) is a common, benign capillary malformation of the newborn that blanches and typically fades over the first 1 to 2 years, though nuchal lesions often persist.

Question 27Pediatric Dermatology

A 4-year-old has several 1 to 2 mm yellowish-brown, pearly, dome-shaped papules with central umbilication on the face. The lesions are asymptomatic. What is the most appropriate initial management?

  1. Topical corticosteroid
  2. Reassurance and observation Correct answer.
  3. Oral antibiotic
  4. Cryotherapy

Explanation

Molluscum contagiosum is a benign self-limited poxvirus infection; in immunocompetent children the lesions resolve spontaneously, so reassurance and observation are appropriate.

Question 28Pediatric Dermatology

A 9-year-old girl has an oval, slightly scaly, hypopigmented patch on the cheek with a subtle raised border. A potassium hydroxide preparation shows branching septate hyphae. What is the most likely diagnosis?

  1. Pityriasis alba
  2. Vitiligo
  3. Tinea faciei Correct answer.
  4. Postinflammatory hypopigmentation

Explanation

Tinea faciei is a dermatophyte infection that can present as an annular scaly patch; KOH showing branching septate hyphae confirms a dermatophyte.

Question 29Pediatric Dermatology

A 6-year-old has scattered 2 to 5 mm flat-topped, violaceous, polygonal papules with fine white lines on the surface on the flexor wrists. What is the most likely diagnosis?

  1. Pityriasis rosea
  2. Lichen planus Correct answer.
  3. Atopic dermatitis
  4. Psoriasis

Explanation

Lichen planus is characterized by the six P's: planar (flat-topped), purple (violaceous), polygonal, pruritic, papules, and plaques; Wickham striae are fine white lines on the surface.

Question 30Pediatric Dermatology

A 2-year-old has a 3 cm annular, scaly, erythematous plaque on the buttock with central clearing. A KOH preparation is positive for hyphae. What is the most appropriate treatment?

  1. Topical antiviral
  2. Topical corticosteroid
  3. Topical antifungal Correct answer.
  4. Oral antibiotic

Explanation

Tinea corporis is a dermatophyte infection treated with topical antifungals for localized disease; oral therapy is reserved for extensive or resistant cases.

Question 31Pediatric Dermatology

A 3-year-old has several 1 cm round, sharply circumscribed patches of hair loss on the scalp with no scaling or inflammation. What is the most likely diagnosis?

  1. Telogen effluvium
  2. Trichotillomania
  3. Tinea capitis
  4. Alopecia areata Correct answer.

Explanation

Alopecia areata presents as well-demarcated, smooth patches of nonscarring hair loss without scale or inflammation; exclamation-point hairs may be seen at the edges.

Question 32Pediatric Dermatology

A 12-year-old boy has multiple 1 to 3 mm firm, flesh-colored to slightly hyperpigmented dome-shaped papules on the dorsal hands. He has a history of biting his nails. What is the most likely diagnosis?

  1. Molluscum contagiosum
  2. Epidermoid cysts
  3. Common warts Correct answer.
  4. Flat warts

Explanation

Common warts (verrucae vulgaris) are caused by HPV and present as hyperkeratotic, dome-shaped papules on the hands, often spread by nail biting.

Question 33Pediatric Dermatology

A 7-year-old has an intensely pruritic, erythematous, annular plaque with a raised, scaly border and central clearing on the thigh. What is the most likely diagnosis?

  1. Tinea corporis Correct answer.
  2. Granuloma annulare
  3. Erythema multiforme
  4. Nummular eczema

Explanation

Tinea corporis is a dermatophyte infection that classically forms an annular plaque with a scaly leading edge and central clearing.

Question 34Pediatric Dermatology

A 10-year-old has multiple 2 to 4 mm yellowish, crusted, honey-colored lesions around the nose and mouth. What is the most appropriate topical treatment?

  1. Topical corticosteroid
  2. Topical mupirocin Correct answer.
  3. Topical antifungal
  4. Topical acyclovir

Explanation

Impetigo is a superficial bacterial infection often caused by Staphylococcus aureus or Streptococcus pyogenes; topical mupirocin is effective for localized disease.

Question 35Pediatric Dermatology

A 13-year-old girl presents with several 1 to 2 cm erythematous, tender nodules on the anterior shins that developed over the past week. She recently had a sore throat. What is the most likely diagnosis?

  1. Erythema nodosum Correct answer.
  2. Erythema multiforme
  3. Nodular vasculitis
  4. Cellulitis

Explanation

Erythema nodosum is a hypersensitivity panniculitis presenting as tender erythematous nodules on the shins; it can follow streptococcal infection.

Question 36Pediatric Dermatology

A 5-year-old has an asymptomatic, well-demarcated, depigmented patch with a few terminal white hairs on the scalp. Wood's lamp examination shows bright blue-white fluorescence. What is the most likely diagnosis?

  1. Vitiligo Correct answer.
  2. Tinea capitis
  3. Pityriasis alba
  4. Nevus depigmentosus

Explanation

Vitiligo is an acquired depigmentation that fluoresces bright blue-white under Wood's lamp due to loss of melanin; leukotrichia (white hair) can occur.

Question 37Pediatric Dermatology

A 7-year-old with atopic dermatitis has an acute flare of erythematous, weeping, crusted plaques on the antecubital fossae. Which topical agent is most appropriate for this acute flare?

  1. Emollient alone
  2. Topical calcineurin inhibitor
  3. Medium-potency topical corticosteroid Correct answer.
  4. Topical antibiotic

Explanation

Acute flares of atopic dermatitis are treated with topical corticosteroids of appropriate potency; medium-potency agents are suitable for the flexures in a child.

Question 38Pediatric Dermatology

A 2-year-old has a large, tense bulla on the thigh after a minor trauma. The fluid is clear, and the lesion ruptures easily, leaving an erosion. What is the most likely diagnosis?

  1. Friction blister
  2. Bullous impetigo Correct answer.
  3. Pemphigus vulgaris
  4. Epidermolysis bullosa acquisita

Explanation

Bullous impetigo is caused by staphylococcal exfoliative toxin and presents with flaccid bullae that rupture easily, often on the extremities or diaper area.

Question 39Pediatric Dermatology

A 6-year-old has recurrent episodes of painful, erythematous, indurated plaques on the cheeks and legs, often after minor trauma. A biopsy shows neutrophilic dermatosis. What is the most likely diagnosis?

  1. Erythema multiforme
  2. Sweet syndrome Correct answer.
  3. Urticaria
  4. Cellulitis

Explanation

Sweet syndrome (acute febrile neutrophilic dermatosis) presents with tender erythematous plaques and a neutrophilic infiltrate on biopsy; it can occur in children.

Question 40Pediatric Dermatology

A 14-year-old girl has multiple 2 to 4 mm hyperpigmented, velvety papules on the neck and axillae. She is obese and has a family history of type 2 diabetes. What is the most likely diagnosis?

  1. Acanthosis nigricans Correct answer.
  2. Seborrheic keratosis
  3. Confluent and reticulated papillomatosis
  4. Terra firma-forme dermatosis

Explanation

Acanthosis nigricans presents as velvety hyperpigmented plaques in intertriginous areas and is associated with insulin resistance and obesity.

Question 41Pediatric Dermatology

A 9-year-old boy has multiple 1 to 3 mm skin-colored to hyperpigmented, flat-topped papules on the face and dorsal hands. He also has a history of atopic dermatitis. What is the most likely diagnosis?

  1. Seborrheic keratosis
  2. Lichen nitidus
  3. Flat warts Correct answer.
  4. Molluscum contagiosum

Explanation

Flat warts (verrucae planae) are caused by HPV and present as smooth, flat-topped papules, often on the face and hands, especially in children with atopic dermatitis.

Question 42Pediatric Dermatology

A 5-year-old has a 2 cm annular, erythematous plaque with central clearing on the cheek. A KOH preparation is negative. He has a history of atopic dermatitis. What is the most likely diagnosis?

  1. Pityriasis alba Correct answer.
  2. Erythema multiforme
  3. Granuloma annulare
  4. Tinea faciei

Explanation

Pityriasis alba is a common, ill-defined, scaly hypopigmented patch often seen in children with atopic dermatitis; it is not fungal and KOH is negative.

Question 43Pediatric Dermatology

A 3-year-old has a 1 cm firm, skin-colored nodule on the forearm that developed after a minor puncture wound. It has been present for 2 months and is asymptomatic. What is the most likely diagnosis?

  1. Epidermoid cyst
  2. Pilomatricoma
  3. Dermatofibroma Correct answer.
  4. Foreign body granuloma

Explanation

Dermatofibroma is a benign fibrous nodule that often follows minor trauma and presents as a firm, dimple-positive papule, commonly on the extremities in children.

Question 44Pediatric Dermatology

A 12-year-old boy has multiple 1 to 2 mm reddish-brown, telangiectatic papules on the lower lip and oral mucosa. He also has recurrent epistaxis. What is the most likely diagnosis?

  1. Capillary malformation
  2. Osler-Weber-Rendu syndrome
  3. Hereditary hemorrhagic telangiectasia Correct answer.
  4. Spider angioma

Explanation

Hereditary hemorrhagic telangiectasia (Osler-Weber-Rendu syndrome) presents with mucocutaneous telangiectasias and recurrent epistaxis; the two names refer to the same condition.

Question 45Pediatric Dermatology

A 4-year-old has a 2 cm annular, erythematous plaque with a raised, scaly border on the scalp. There is no hair loss. A KOH preparation is positive. What is the most appropriate treatment?

  1. Oral antifungal
  2. Oral antibiotic
  3. Topical corticosteroid
  4. Topical antifungal Correct answer.

Explanation

Localized tinea corporis or faciei can be treated with topical antifungals; oral therapy is reserved for extensive, resistant, or hair-bearing scalp involvement (tinea capitis).

Question 46Pediatric Dermatology

A 10-year-old girl has multiple 1 to 2 mm firm, shiny, flat-topped papules on the abdomen and genitalia. She is otherwise healthy. What is the most likely diagnosis?

  1. Molluscum contagiosum
  2. Lichen planus
  3. Flat warts
  4. Lichen nitidus Correct answer.

Explanation

Lichen nitidus presents as tiny, shiny, flat-topped papules, often on the abdomen, genitalia, and flexor surfaces, and is usually asymptomatic and self-limited.

Question 47Pediatric Dermatology

A 2-year-old has a large, sharply demarcated, bright red plaque on the cheek that has been present since birth and has grown proportionally with the child. What is the most likely diagnosis?

  1. Kaposiform hemangioendothelioma
  2. Port-wine stain Correct answer.
  3. Tufted angioma
  4. Infantile hemangioma

Explanation

Port-wine stain is a capillary malformation present at birth that grows proportionally with the child and does not involute.

Question 48Pediatric Dermatology

A 7-year-old presents with a 3-day history of fever, followed by a diffuse erythematous rash that desquamates on the fingertips. He has cracked lips and a strawberry tongue. What is the most likely diagnosis?

  1. Scarlet fever
  2. Stevens-Johnson syndrome
  3. Toxic shock syndrome
  4. Kawasaki disease Correct answer.

Explanation

Kawasaki disease is a vasculitis of young children characterized by fever, mucocutaneous changes (cracked lips, strawberry tongue), rash, and desquamation of the extremities.

Question 49Pediatric Dermatology

A 5-year-old has multiple 1 to 2 cm annular, erythematous plaques with central clearing on the trunk. He has no other symptoms. A KOH preparation is negative. What is the most likely diagnosis?

  1. Urticaria
  2. Pityriasis rosea
  3. Tinea corporis
  4. Erythema annulare centrifugum Correct answer.

Explanation

Erythema annulare centrifugum is a hypersensitivity reaction presenting with annular erythematous plaques that may have a trailing scale; KOH is negative.

Question 50Pediatric Dermatology

A 10-year-old has a 1 cm firm, skin-colored nodule on the eyelid margin that has been slowly growing. It is not inflamed. What is the most likely diagnosis?

  1. Pilomatricoma Correct answer.
  2. Dermatofibroma
  3. Molluscum contagiosum
  4. Chalazion

Explanation

Pilomatricoma is a benign adnexal tumor that often presents as a firm, deep nodule on the head and neck, including the eyelid, in children.