Schneiderman Prelims Vol-I. qxd

VASCULAR LESIONS
Glomus tumors
Vascular hamartomas
Vasculitis
KNUCKLES, PEBBLY WITH
SCARRING: ‘WHY DO MY
HANDS LOOK SO OLD?’
AUTOIMMUNE DISEASES, AND DISEASES
OF IMMUNE DYSFUNCTION
Dermatomyositis
Rheumatoid arthritis – velvet skin 
INFECTIONS
Acrodermatitis chronica atrophicans (peripheral atrophy)
JAAD 28:399–405, 1993
Leprosy
KNUCKLES, PEBBLY WITH SCARRING
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INFILTRATIVE
Lichen myxedematosis
Persistent acral mucinosis
METABOLIC
Diabetic finger pebbling (Huntley’s papules) 
Cutis 69:298–300,
2002
Erythropoietic protoporphyria
Intertriginous xanthomas in fingerweb spaces of homozygous
familial hypercholesterolemia 
JAAD 19:95–111, 1988
NEOPLASTIC
Infantile digital fibromatosis
Solitary mastocytomas- Scotch grain leather appearance
PRIMARY CUTANEOUS DISEASE
Acanthosis nigricans
Acral localized acquired cutis laxa (wrinkled knuckles)
JAAD 21:33–40, 1989
Acrokeratosis verruciformis of Hopf
Epidermolysis bullosa – resolving dystrophic epidermolysis
bullosa
Erythema elevatum diutinum
Granuloma annulare
Knuckle pads 
Cutis 57:241–242, 1996
Lichen nitidus
Lichen simplex chronicus
Pachydermodactyly
Pseudo-acanthosis nigricans
Pseudo-PCT
SYNDROMES
Dyskeratosis congenita
Lipoid proteinosis
Multicentric reticulohistiocytosis
Neurofibromatosis
TRAUMATIC
Garrod’s pads – violinist’s knuckles- thickened skin over the
interphalangeal joints from intense flexion of tendons of fingers
Occupational callosities – carpenters, live chicken hangers
Contact Derm 17:13–16, 1987