Pediatric Dermatology DDX Deck

Contents

Section 1: Blisters (vesicles and bullae)

1 Herpes simplex infections

2 Varicella and herpes zoster

3 Hand, foot and mouth disease

4 Sucking blisters

5 Impetigo and ecthyma

6 Staphylococcal scalded skin syndrome (SSSS)

7 Miliaria

8 Dermatitis herpetiformis

9 Sunburn

10 Epidermolysis bullosa, non-scarring

11 Epidermolysis bullosa, scarring

12 Pemphigus

13 Linear IgA dermatosis

14 Pemphigoid

15 Incontinentia pigmenti

16 Epidermolytic hyperkeratosis

17 Diffuse cutaneous mastocytosis

18 Bullous drug reactions

Section 2: Mucosal erosions (blister bases)

19 Aphthous ulcers

20 Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN)

21 Geographic tongue

22 Mucosal erosions in immunobullous and hereditary bullous diseases

Section 3: Pustular lesions

23 Folliculitis

24 Infantile acropustulosis

25 Acne and steroid rosacea

26 Transient neonatal pustular melanosis

27 Pyoderma gangrenosum

Section 4: Red papules and nodules

28 Furunculosis and cellulitis

29 Necrotizing fasciitis

30 Mycobacterial infections

31 Viral exanthems

32 Syphilis

33 Cutaneous larval migrans

34 Papular urticaria and spider bites

35 Erythema multiforme

36 Erythema nodosum

37 Panniculitis

38 Dermatofibromas

39 Keloids and hypertrophic scars

40 Angiofibromas

41 Tufted angiomas

42 Hemangioendothelioma

43 Congenital self-healing reticulohistiocytosis

44 Malignant tumors of childhood

Section 5: Flat vascular lesions, blanching

45 Mottling

46 Cutis marmorata telangiectasia congenita

47 Livedoreticularis and periarteritis nodosa

48 Urticaria and dermographism

49 Port-wine stains

50 Neonatal lupus erythematosus

51 Kawasaki disease

52 Scarlet fever

53 Fixed drug eruptions

54 Morbilliform and urticarial drug eruptions

Section 6: Raised blanching vascular lesions

55 Hemangioma

56 Diffuse neonatal nemangiomatosis

57 Pyogenic granuloma

58 Lymphatic malformations

59 Vascular spiders

60 Venous malformations

Section 7: Non-blanching vascular lesions (Petechiae and Purpura)

61 Vasculitis

62 Pernio

63 Progressive pigmented purpura

64 Purpuric gloves-and-socks syndrome

65 DRESS syndrome

Section 8: Papulosquamous eruptions

66 Pityriasis rosea

67 Psoriasis

68 Tinea (dermatophyte infections)

69 Pityriasis rubra pilaris (PRP)

70 Ichthyosis

71 Keratosis pilaris

72 Lupus erythematosus (LE)

73 Dariers disease (keratosis follicularis)

74 Lichen planus (LP) and lichen nitidus

75 Porokeratosis of Mibelli

76 Pityriasis lichenoides

77 Dermatomyositis

78 Lichen striatus

Section 9: Eczematous disorders (red with disruption of skin surface)

79 Atopic dermatitis (AD)

80 Allergic contact dermatitis (ACD)

81 Diaper dermatitis

82 Intertrigo

83 Candidiasis

84 Perianal cellulitis

85 Juvenile plantar dermatosis

86 Nummular dermatitis

87 Seborrheic dermatitis

88 Scabies

89 Langerhans cell histiocytosis

90 Acrodermatitis enteropathica

Section 10: Skin colored papules and nodules with a rough surface

91 Warts

92 Epidermal nevi (ILVEN)

93 Corns and calluses

Section 11: Skin colored papules and nodules with a smooth surface

94 Molluscum contagiosum

95 Milia and sebaceous hyperplasia

96 Epidermal cysts

97 Dermoid cysts

98 Pilomatricomas and trichoepitheliomas

99 Granuloma annulare

100 Neurofibroma and lipomas

101 Piezogenic papules

102 Sweat gland tumors

103 Gianotti-Crosti syndrome

Section 12: White lesions

104 Postinflammatory hypopigmentation and pityriasis alba

105 Vitiligo

106 Piebaldism

107 Ash leaf macules

108 Tinea versicolor

109 Lichen sclerosis

110 Oculocutaneous albinism (OCA)

111 Morphea

112 Nevus depigmentosus

113 Nevus anemicus

114 Hypomelanosis of Ito

115 Halo nevus

Section 13: Flat brown lesions

116 Mongolian spots

117 Nevus of Ota

118 Café-au-lait macules (CALMs)

119 Nevus spilus

120 Junctional nevi

121 Freckles

122 Lentigines

123 Beckers nevus

124 Post-inflammatory hyperpigmentation

125 Phytophotodermatitis

126 Acanthosis nigricans (AN)

127 Linear and whorled hyperpigmentation

Section 14: Raised brown lesions

128 Congenital melanocytic nevi

129 Intradermal melanocytic nevus

130 Mastocytosis

131 Pilar and smooth muscle hamartomas

132 Flat warts (verruca plana)

133 Benign cephalic histiocytosis

134 Melanoma

Section 15: Yellow lesions

135 Nevus sebaceous

136 Juvenile xanthogranuloma (JXG)

137 Necrobiosis lipoidica diabeticorum (NLD)

138 Focal dermal hypoplasia

Section 16: Congenital circumscribed hair loss

139 Aplasia cutis congenita

Section 17: Acquired circumscribed hair loss

140 Alopecia areata

141 Tinea capitis and kerion

142 Traction alopecia and hair pulling

Section 18: Congenital diffuse hair loss

143 Ectodermal dysplasias

144 Hair shaft defects

Section 19: Acquired diffuse hair loss

145 Telogen and anagen effluvium

Section 20: Thickened nails

146 Pachyonychia congenita

147 Ectodermal dysplasia (nails)

148 Median nail dystrophy

149 Trachyonychia (twenty nail dystrophy)

150 Psoriasis nails

151 Lichen planus nails

Section 21: Thin, slow-growing, or loss of nail

152 Ectodermal dysplasia and nail-patella syndrome

Section 22: Pitted lesions

153 Ear pits and lip pits

154 Pitted keratolysis

Section 23: Involvement of palms and soles

155 Palmoplantar keratodermas

Section 24: Photodistribution (sun induced lesions)

156 Polymorphous light eruption

157 Erythropoietic protoporphyria (EPP)

Section 25: Annular arrangements

158 Annular arrangement

Section 26: Linear or curvilinear arrangements

159 Linear or curvilinear arrangement