Table 1. Case reports of new onset psoriasis following treatment for rheumatoid arthritis with anti-tumour necrosis factor (TNF) therapy.

Patient	Reference	Age/sex	Affected areas	Diagnosis	Treatment	Latency, months
1	Beuthien et al10	63F	Injection site (thigh), palms and soles	Papulopustular exanthaema	ADA	3
2	Dereure et al11	47F	Anterior aspects of legs	Psoriasis	INF	2
3	Dereure et al11	55F	Palms, soles, umbilicus, ankles wrists and buttocks	Psoriasis	ETA	3
4	Flendrie et al12	–	Hands and feet	Psoriasis/psoriaform eruption	ADA	9
5	Flendrie et al12	–	Lower legs	Psoriasis/psoriaform eruption	ADA	48
6	Flendrie et al12	–	Arms and legs	Psoriasis/psoriaform eruption	ADA	16
7	Grinblat et al13	37F	Scalp, arms and legs	Psoriasis	INF	<1 week
8	Sfikakis et al14	65F	Palms, soles, elbows, arms and thighs	Psoriasis	ADA	9
9	Sfikakis et al14	48F	Soles, elbows, lower legs	Psoriatic plaques	ETA	7
10	Kary et al15	41F	Palms, soles, legs and arms	Psoriasis vulgaris	ADA	14–15
11	Kary et al15	65F	Limbs	Psoriasis vulgaris	ADA	4 days
12	Kary et al15	38M	Limbs and abdomen (Had family sister)	Psoriasis vulgaris	INF	3
13	Kary et al15	67F	Palms, arms, legs and scalp (Had family brother)	Psoriasis pustulosa	ADA	5
14	Kary et al15	49F	Legs and soles of feet (pre-existing but asymptomatic)	Psoriasis pustulosa	INF	8
15	Kary et al15	49F	Legs and arms (pre-existing but asymptomatic for 15 years)	Psoriasis pustulosa	ETA	1
16	Kary et al15	63F	Extremities and trunk	Psoriasis vulgaris	ETA	2
17	Sari et al16	30F	Scalp, elbows, abdomen and lower back	Psoriasis	ETA	2
18	Goncalves et al17	61F	Hands and feet	Plaque psoriasis	INF	14
19	Aslanidis et al18	64F	Elbows, neck and scalp	Psoriasisiform dermatitis	ADA	3
20	Cohen et al19	70F	Pubis, umbilicus, legs	Psoriasis	INF	41
21	Cohen et al19	63F	Legs, arms	Psoriasis	ETA	10
22	de Gannes et al20	41F	Heel and palm	Palmoplantar psoriasis	ETA	26
23	de Gannes et al20	53F	Elbows	Plaque psoriasis	ETA	17
24	de Gannes et al20	66F	Scalp, arms, chest and neck	Plaque and guttate psoriasis	ETA	4
25	de Gannes et al20	51M	Elbows	Psoriasis	ETA	12
26	de Gannes et al20	48F	Arms and trunk	Papulosquamous eruption	ETA	3
27	de Gannes et al20	41F	Scalp, thigh and thumb	Palmoplantar pustular psoriasis	INF	2
28	de Gannes et al20	52F	Palmoplantar pustular psoriasis	Palmoplantar pustular psoriasis	INF	24
29	de Gannes et al20	78F	Lesions on shins	Thick surface keratin with focal parakeratosis	INF	2
30	de Gannes et al20	56M	Palms, soles, legs	Pustular psoriasis	ADA	62
31	de Gannes et al20	50M	Trunk, shins and arms	Psoriasis	INF	12
32	de Gannes et al20	55F	Palms, soles and ankles	Plaque and pustular psoriasis	ADA	36
33	de Gannes et al20	49M	Palms and soles	Pustular psoriasis	ADA	5
34	de Gannes et al20	37F	Plantar surfaces	Plaque psoriasis with subsequent pustules	ETA	24
35	Ubriani et al21	65F	Legs, trunk and extremities	Psoriasis	INF	48
36	Ubriani et al21	45F	Palmoplantar pustulosis	Palmoplantar pustulosis	ADA	1
37	Starmans-Kool et al22	62F	Hands and feet. Swollen hands, knees	Palmoplantar pustulosis	INF	5th Infusion
38	Michaelsson et al23	62F	Palmoplantar pustulosis with lesions on legs and arms	Palmoplantar pustulosis & pustular psoriasis	INF	2 weeks
39	Michaelsson et al23	50F	Palmoplantar pustulosis with lesions on extremities	Palmoplantar pustulosis	INF	1.5
40	Roux et al24	42F	Psoriatic palmoplantaris pustulosis	Psoriatic palmoplantaris pustulosis	INF	1.5
41	Roux et al24	32F	Plantaris pustulosis with lesions on legs, arms and trunk	Psoriatic palmoplantaris pustulosis & diffuse erythaematosquamous lesions	INF	7

ADA, adalimumab; ETA, etanercept; INF, infliximab.