Dermatology DDX Deck
- 4th Edition - September 1, 2026
- Latest edition
- Authors: James G. H. Dinulos, M. Shane Chapman, Andrew E. Werchniak, Dorothea T. Barton, Mary Wu Chang
- Language: English
- Paperback ISBN:9 7 8 - 0 - 4 4 3 - 1 2 6 7 1 - 0
- eBook ISBN:9 7 8 - 0 - 4 4 3 - 1 2 6 4 9 - 9
There is a trend for non-dermatologists (such as NPs, PAs, and other primary care providers) to increasingly see patients with skin conditions, leaving dermatologists to handle… Read more
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There is a trend for non-dermatologists (such as NPs, PAs, and other primary care providers) to increasingly see patients with skin conditions, leaving dermatologists to handle difficult and refractory cases.
The Dermatology DDx Deck made a huge impact with a unique “paint chip” format allowing users to flip through images, comparing and contrasting clinical appearance of 160 common skin conditions. The reverse of the card then provides a brief overview of key therapies.
It has proved hugely popular, especially with non-dermatologists, in particular nurse practitioners, primary care providers and physician assistants, who spend a large portion of their time dealing with patients with skin conditions and who would like to make a best possible assessment of the patient before potentially referring to dermatology.
Originally developed to guide readers on diagnosis and basic treatment, the DDx Deck has evolved to become a tool for patient education in the clinic and a learning-through-exposure resource for exam preparation.
The Dermatology DDx Deck made a huge impact with a unique “paint chip” format allowing users to flip through images, comparing and contrasting clinical appearance of 160 common skin conditions. The reverse of the card then provides a brief overview of key therapies.
It has proved hugely popular, especially with non-dermatologists, in particular nurse practitioners, primary care providers and physician assistants, who spend a large portion of their time dealing with patients with skin conditions and who would like to make a best possible assessment of the patient before potentially referring to dermatology.
Originally developed to guide readers on diagnosis and basic treatment, the DDx Deck has evolved to become a tool for patient education in the clinic and a learning-through-exposure resource for exam preparation.
- “Paint swatch format” is unique – facilitates quick ddx comparison
- The front of each card contains 4 x clinical images with descriptions of a condition. Also contains links to differentials to consider (citing ddx card number)
- The back of each card contains brief supporting info (description, etiology, and tx)
Dermatology
1. Basic principles of treatment
2. Topical corticosteroids
3. Acute eczematous inflammation
4. Rhus dermatitis (poison ivy, poison oak, poison sumac)
5. Subacute eczematous inflammation
6. Chronic eczematous inflammation
7. Lichen simplex chronicus
8. Hand eczema
9. Asteatotic eczema
10. Chapped, fissured feet
11. Allergic contact dermatitis
12. Irritant contact dermatitis
13. Fingertip eczema
14. Keratolysis exfoliativa
15. Nummular eczema
16. Pompholyx
17. Prurigo nodularis
18. Stasis dermatitis
19. Venous leg ulcers
20. Atopic dermatitis
21. Autosomal dominant ichthyosis vulgaris
22. Keratosis pilaris
23. Pityriasis alba
24. Acute urticaria
25. Chronic urticaria
26. Physical urticaria
27. Angioedema
28. Mastocytosis (urticaria pigmentosa)
29. Pruritic urticarial papules and plaques of pregnancy
30. Comedone acne
31. Pustular acne
32. Cystic acne
33. Perioral dermatitis
34. Rosacea (acne rosacea)
35. Hidradenitis suppurativa
36. Psoriasis: hands and feet
37. Psoriasis: lesions
38. Psoriasis: nails
39. Psoriasis: special forms
40. Seborrheic dermatitis
41. Grover’s disease (transient acantholytic dermatosis)
42. Pityriasis rosea
43. Lichen planus
44. Lichen sclerosus
45. Pityriasis lichenoides et varioliformis acuta (Mucha–Habermann disease)
46. Impetigo
47. Cellulitis
48. Folliculitis
49. Pseudofolliculitis barbae
50. Furuncles and carbuncles
51. Pseudomonas folliculitis
52. Otitis externa
53. Syphilis
54. Chancroid
55. Genital warts
56. Genital herpes simplex
57. Pubic lice
58. Molluscum contagiosum
59. Warts (verruca vulgaris)
60. Flat warts
61. Plantar warts
62. Molluscum contagiosum
63. Herpes simplex (cold sores, fever blisters)
64. Varicella (chicken pox)
65. Herpes zoster (shingles)
66. Hand, foot, and mouth disease
67. Candidiasis (moniliasis)
68. Candidal balanitis
69. Candidiasis (diaper dermatitis)
70. Candidiasis of large skin folds (candidal intertrigo)
71. Tinea versicolor
72. Tinea of the nails
73. Angular cheilitis
74. Cutaneous fungal infections (tinea)
75. Tinea of the foot
76. Tinea of the groin
77. Tinea of the body
78. Tinea of the hand
79. Tinea incognito
80. Tinea of the scalp
81. Tinea of the beard
82. Non-specific viral rash
83. Erythema infectiosum
84. Cutaneous drug eruptions
85. Erythema multiforme
86. Stevens–Johnson syndrome
87. Erythema nodosum
88. Cutaneous small vessel vasculitis (hypersensitivity vasculitis)
89. Henoch–Schönlein purpura
90. Schamberg disease (Schamberg purpura)
91. Sweet syndrome
92. Scabies
93. Head lice (pediculosis)
94. Bee and wasp stings
95. Lyme disease
96. Rocky Mountain spotted fever
97. Flea bites
98. Cutaneous larva migrans
99. Dermatitis herpetiformis
100. Pemphigus vulgaris
101. Pemphigus foliaceus
102. Bullous pemphigoid
103. Chronic cutaneous lupus
104. Acute cutaneous lupus erythematosus
105. Dermatomyositis
106. Scleroderma
107. Morphea
108. Sun-damaged skin, photoaging
109. Polymorphous light eruption
110. Porphyria cutanea tarda
111. Vitiligo
112. Idiopathic guttate hypomelanosis
113. Lentigo, juvenile lentigo, solar lentigo
114. Melasma (chloasma, mask of pregnancy)
115. Seborrheic keratosis
116. Skin tags
117. Dermatofibroma
118. Keloids and hypertrophic scars
119. Keratoacanthoma
120. Nevus sebaceus
121. Chondrodermatitis nodularis helicis
122. Epidermal cyst
123. Pilar cyst
124. Sebaceous hyperplasia
125. Syringomas
126. Basal cell carcinoma
127. Actinic keratosis
128. Squamous cell carcinoma
129. Bowen disease
130. Leukoplakia
131. Cutaneous T-cell lymphoma
132. Paget disease of the breast
133. Extramammary Paget disease
134. Cutaneous metastasis
135. Nevi, melanocytic nevi, moles
136. Atypical mole syndrome (dysplastic nevus syndrome)
137. Malignant melanoma, lentigo maligna
138. Melanoma mimics
139. Congenital melanocytic nevi
140. Hemangiomas of infancy
141. Vascular malformations
142. Cherry angioma
143. Angiokeratoma
144. Venous lake
145. Pyogenic granuloma
146. Kaposi sarcoma
147. Telangiectasias
148. Spider angioma (nevus araneus)
149. Androgenic alopecia (male pattern baldness)
150. Androgenic alopecia in women (female pattern hair loss)
151. Alopecia areata
152. Trichotillomania
153. Fungal nail infections
154a 154a Nail Diseases: Psoriasis
154b 154b Nail Diseases: Paronychia, Pseudomas, infection, white spots or bands
154c 154c Nail Diseases: Ridging and beading, habit tic deformity, onycholysis
154d 154d Nail Diseases: Digital Mucous cyst, nevi and melanoma, hematoma
155. Erythema toxicum neonatorum
156. Miliaria
157. Cutis marmorata
158. Acquired cutaneous paraneoplastic syndromes
159. Inherited cutaneous paraneoplastic syndromes
160. Acanthosis nigricans
161. Neurofibromatosis
162. Tuberous sclerosis
163. Granuloma annulare
164. Necrobiosis lipoidica
165. Pyoderma gangrenosum
166. Lasers in Dermatology
167. Leishmaniasis
168. Leprosy (Hansen’s Diseases)
Formulary Potencies of topical steroids
2. Topical corticosteroids
3. Acute eczematous inflammation
4. Rhus dermatitis (poison ivy, poison oak, poison sumac)
5. Subacute eczematous inflammation
6. Chronic eczematous inflammation
7. Lichen simplex chronicus
8. Hand eczema
9. Asteatotic eczema
10. Chapped, fissured feet
11. Allergic contact dermatitis
12. Irritant contact dermatitis
13. Fingertip eczema
14. Keratolysis exfoliativa
15. Nummular eczema
16. Pompholyx
17. Prurigo nodularis
18. Stasis dermatitis
19. Venous leg ulcers
20. Atopic dermatitis
21. Autosomal dominant ichthyosis vulgaris
22. Keratosis pilaris
23. Pityriasis alba
24. Acute urticaria
25. Chronic urticaria
26. Physical urticaria
27. Angioedema
28. Mastocytosis (urticaria pigmentosa)
29. Pruritic urticarial papules and plaques of pregnancy
30. Comedone acne
31. Pustular acne
32. Cystic acne
33. Perioral dermatitis
34. Rosacea (acne rosacea)
35. Hidradenitis suppurativa
36. Psoriasis: hands and feet
37. Psoriasis: lesions
38. Psoriasis: nails
39. Psoriasis: special forms
40. Seborrheic dermatitis
41. Grover’s disease (transient acantholytic dermatosis)
42. Pityriasis rosea
43. Lichen planus
44. Lichen sclerosus
45. Pityriasis lichenoides et varioliformis acuta (Mucha–Habermann disease)
46. Impetigo
47. Cellulitis
48. Folliculitis
49. Pseudofolliculitis barbae
50. Furuncles and carbuncles
51. Pseudomonas folliculitis
52. Otitis externa
53. Syphilis
54. Chancroid
55. Genital warts
56. Genital herpes simplex
57. Pubic lice
58. Molluscum contagiosum
59. Warts (verruca vulgaris)
60. Flat warts
61. Plantar warts
62. Molluscum contagiosum
63. Herpes simplex (cold sores, fever blisters)
64. Varicella (chicken pox)
65. Herpes zoster (shingles)
66. Hand, foot, and mouth disease
67. Candidiasis (moniliasis)
68. Candidal balanitis
69. Candidiasis (diaper dermatitis)
70. Candidiasis of large skin folds (candidal intertrigo)
71. Tinea versicolor
72. Tinea of the nails
73. Angular cheilitis
74. Cutaneous fungal infections (tinea)
75. Tinea of the foot
76. Tinea of the groin
77. Tinea of the body
78. Tinea of the hand
79. Tinea incognito
80. Tinea of the scalp
81. Tinea of the beard
82. Non-specific viral rash
83. Erythema infectiosum
84. Cutaneous drug eruptions
85. Erythema multiforme
86. Stevens–Johnson syndrome
87. Erythema nodosum
88. Cutaneous small vessel vasculitis (hypersensitivity vasculitis)
89. Henoch–Schönlein purpura
90. Schamberg disease (Schamberg purpura)
91. Sweet syndrome
92. Scabies
93. Head lice (pediculosis)
94. Bee and wasp stings
95. Lyme disease
96. Rocky Mountain spotted fever
97. Flea bites
98. Cutaneous larva migrans
99. Dermatitis herpetiformis
100. Pemphigus vulgaris
101. Pemphigus foliaceus
102. Bullous pemphigoid
103. Chronic cutaneous lupus
104. Acute cutaneous lupus erythematosus
105. Dermatomyositis
106. Scleroderma
107. Morphea
108. Sun-damaged skin, photoaging
109. Polymorphous light eruption
110. Porphyria cutanea tarda
111. Vitiligo
112. Idiopathic guttate hypomelanosis
113. Lentigo, juvenile lentigo, solar lentigo
114. Melasma (chloasma, mask of pregnancy)
115. Seborrheic keratosis
116. Skin tags
117. Dermatofibroma
118. Keloids and hypertrophic scars
119. Keratoacanthoma
120. Nevus sebaceus
121. Chondrodermatitis nodularis helicis
122. Epidermal cyst
123. Pilar cyst
124. Sebaceous hyperplasia
125. Syringomas
126. Basal cell carcinoma
127. Actinic keratosis
128. Squamous cell carcinoma
129. Bowen disease
130. Leukoplakia
131. Cutaneous T-cell lymphoma
132. Paget disease of the breast
133. Extramammary Paget disease
134. Cutaneous metastasis
135. Nevi, melanocytic nevi, moles
136. Atypical mole syndrome (dysplastic nevus syndrome)
137. Malignant melanoma, lentigo maligna
138. Melanoma mimics
139. Congenital melanocytic nevi
140. Hemangiomas of infancy
141. Vascular malformations
142. Cherry angioma
143. Angiokeratoma
144. Venous lake
145. Pyogenic granuloma
146. Kaposi sarcoma
147. Telangiectasias
148. Spider angioma (nevus araneus)
149. Androgenic alopecia (male pattern baldness)
150. Androgenic alopecia in women (female pattern hair loss)
151. Alopecia areata
152. Trichotillomania
153. Fungal nail infections
154a 154a Nail Diseases: Psoriasis
154b 154b Nail Diseases: Paronychia, Pseudomas, infection, white spots or bands
154c 154c Nail Diseases: Ridging and beading, habit tic deformity, onycholysis
154d 154d Nail Diseases: Digital Mucous cyst, nevi and melanoma, hematoma
155. Erythema toxicum neonatorum
156. Miliaria
157. Cutis marmorata
158. Acquired cutaneous paraneoplastic syndromes
159. Inherited cutaneous paraneoplastic syndromes
160. Acanthosis nigricans
161. Neurofibromatosis
162. Tuberous sclerosis
163. Granuloma annulare
164. Necrobiosis lipoidica
165. Pyoderma gangrenosum
166. Lasers in Dermatology
167. Leishmaniasis
168. Leprosy (Hansen’s Diseases)
Formulary Potencies of topical steroids
- Edition: 4
- Latest edition
- Published: September 1, 2026
- Language: English
JD
James G. H. Dinulos
James G. H. Dinulos, MD, Clinical Professor, Geisel School of Medicine at Dartmouth, Section of Dermatology, Department of Surgery, Department of Pediatrics, Dartmouth-Hitchcock Medical Center, Hanover and Lebanon, NH, USA
Affiliations and expertise
Clinical Professor of Dermatology, Geisel School of Medicine at Dartmouth, Hanover, NH, USA, Section of Dermatology, Department of Surgery, Department of Pediatrics, Dartmouth-Hitchcock Medical Center, Lebanon, NH, USA, Hanover, NH
Clinical Assistant Professor of Dermatology, Department of Dermatology, University of Connecticut, Farmington, CT, USAMC
M. Shane Chapman
M. Shane Chapman, MD, MBA, Associate Professor, Geisel School of Medicine at Dartmouth, Section of Dermatology, Department of Surgery, Dartmouth-Hitchcock Medical Center, Hanover and Lebanon, NH, USA
Affiliations and expertise
Associate Professor, Geisel School of Medicine at Dartmouth, Section of Dermatology, Department of Surgery, Dartmouth-Hitchcock Medical Center, Hanover and Lebanon, NH, USAAW
Andrew E. Werchniak
Andrew E. Werchniak, MD, Clinical Professor, Geisel School of Medicine at Dartmouth, Section of Dermatology, Department of Surgery, Dartmouth-Hitchcock Medical Center, Hanover and Lebanon, NH, USA
Affiliations and expertise
Clinical Professor, Geisel School of Medicine at Dartmouth, Section of Dermatology, Department of Surgery, Dartmouth-Hitchcock Medical Center, Hanover and Lebanon, NH, USADB
Dorothea T. Barton
Dorothea T. Barton, MD, Assistant Professor of Dermatology, Section of Dermatology, Department of Surgery, Dartmouth-Hitchcock Medical Center, Hanover and Lebanon, NH, USA
Affiliations and expertise
Assistant Professor of Dermatology, Section of Dermatology, Department of Surgery, Dartmouth-Hitchcock Medical Center, Hanover and Lebanon, NH, USAMC
Mary Wu Chang
Affiliations and expertise
Associate Professor of Dermatology and Pediatrics, UConn Health, Farmington, CT, USA