Cutaneous Manifestations of Systemic Disease
Holly Edmonds, MD Chief Resident Department of DermatologyBrief Review of terminology…
Zits???Red Rash???
“Nasty… just call the derm service and get a consult!”You have to learn the language!
Description of a skin lesion:Type Shape Arrangment Distribution OH!!! DATS what that rash is!!!
TYPE
Primary lesion Secondary lesion Color PalpationMACULE/PATCH
PLAQUEPAPULE
NODULEVESICLE/BULLA
PUSTULEWHEAL
SCALECRUST
LICHENIFICATIONEROSION
ULCERATROPHY
EXCORIATION
FISSURESCAR
ColorColor
ColorPalpation
Consistency Firm, Soft, Fluctuant, Boardlike Temperature deviation (hot or cold) Mobility Presence of tendernessMargination
Ill-defined vs. Well-definedSHAPE
SHAPESHAPE
SHAPESHAPE
ARRANGEMENTARRANGEMENT
ARRANGEMENTARRANGEMENT
ARRANGEMENTDISTRIBUTION
DISTRIBUTIONDISTRIBUTION
DISTRIBUTION
DISTRIBUTIONCutaneous Manifestations
Diabetes Mellitus Renal Disease Gastrointestinal disorders Rheumatologic disease Hepatitis C Thyroid disease Paraneoplastic disease Nutritional diseaseDiabetes Mellitus
Acanthosis Nigricans Diabetic Dermopathy Bullosis Diabeticorum Necrobiosis Lipoidica Diabetic Foot UlcersAcanthosis Nigricans
African Americans and Hispanics > Caucasians Associated with obesity, insulin resistance Hyperpigmented velvety plaques of the flexures Genetic sensitivity of the skin to hyperinsulinemia Malignant form a/w gastric ACAAcanthosis Nigricans
Acanthosis Nigricans
Diabetic Dermopathy
AKA “shin spots” or pigmented pretibial papulesMost common cutaneous manifestation of diabetesBenign asymptomatic red brown macules on shinsNo treatment neededDiabetic Dermopathy
Bullosis DiabeticorumRapid onset painless, tense blisters on hands and feet Trauma and microvascular disease may play a role Spontaneous healing in 2-5 weeks
Bullosis Diabeticorum
Necrobiosis Lipoidica20-35% of patients with NLD have diabetes, only about 1-3% of diabetics have NLD Start as red-brown papules and progress to well defined yellow-brown atrophic plaques with irregular violaceous borders and telangiectasias. Shins #1 site. Ulceration in 35%. Glucose control will not clear NLD
Necrobiosis Lipoidica Diabeticorum
Diabetic Eruptive Xanthomas
Seen in uncontrolled diabetes, hypertriglyceridemia Sudden crops on firm, non-tender yellow papules with a red rim on extensors Control glucose and lipid reduction will reduce lesionsDiabetic Eruptive Xanthomas
Diabetic Neurotropic UlcersPeripheral neuropathy leads to unnoticed trauma Vascular complications may lead to ulcers and complicate ulcer healing Risk of amputation goes up 8x once these develop
Diabetic Neurotropic Ulcers
Renal diseasePruritis Perforating dermatosis Calciphylaxis Nephrogenic Fibrosing Dermopathy
Pruritis
Most common cutaneous manifestation of renal disease Seen in both peritoneal and hemodialysis patients Unknown mechanism, unsatisfactory therapy- UVB helps the mostPruritis
Perforating Disorder
Acquired Perforating Dermatosis of ESRD Umbilicated papules/nodules with central hyperkeratotic corePerforating dermatosis
Perforating dermatosisCalciphylaxis
Painful purpuric plaques and retiform purpura More proximal lesions = poorer prognosisCalciphylaxis
Nephrogenic Fibrosing DermopathyWoody, indurated plaques with peau d’orange appearanceUsually spares the face, palms, solesAssociated with gadolinium contrast for MRIs
Nephrogenic Fibrosing Dermopathy
Gastrointestinal disorders
Henoch Schonlein Purpura Dermatitis Herpetiformis Inflammatory Bowel DiseaseHenoch Schonlein Purpura
Palpable purpura, urticaria, necrotic ulcers on buttocks, distal legs Symmetric IgA vasculitis GI symptoms + arthritis, long term concern for hypertension and renal involvement Usually under 20, following an URIHSP
HSP
Dermatitis Herpetiformis
Symmetric, grouped vesicles on extensorsVery pruritic!All patients have gluten-sensitive enteropathy, only 20% symptomaticAssociated with HLA-DQ2, Hashiomoto’s thyroiditis, lymphoma, IDDMCutaneous findings are due to autoantibodies to epidermal transglutaminaseTreatment- rapidly responsive to dapsoneDermatitis Herpetiformis
Inflammatory Bowel Disease
Crohn’s and Ulcerative ColitisOral Crohn’s Linear ulcerations, cobblestoned oral mucosa UC may have aphthous ulcers that develop as IBD flares
Metastatic Crohn’s See fissures and fistulas with Crohn’sMetastatic Crohn’s are nodules, plaques and ulcerations usually in intertriginous areas which can mimic erythema nodosum
Erythema Nodosum
Tender red nodules on anterior lower legs, precedes or occurs with IBD flares, UC more common Most EN is idiopathic, also can be related to oral contraceptives or abx, preceding strep or mycobacterial infxnPyoderma Gangrenosum
More common in UC Papules, pustules, hemorrhagic blisters enlarge and ulcerate with dusky undermined edges Frequently on legs or around stoma sites Treat with steroids, often gets better as IBD gets betterRheumatologic Disorders
Lupus ErythematosisDermatomyositisReiter’s DiseaseLupus Erythematosis
Classification: Systemic Cutaneous Lupus (SLE) Subacute Cutaneous Lupus (SCLE) Discoid Lupus (DLE) Neonatal LupusSLE
+ANA +Sm and dsDNA Butterfly Rash Poikiloderma Photodistrubited erythematous, papular scaling eruption sparing knuckles.
SLE
SLE
SLE
Dermatomyositis
Poikiloderma favoring scalp, periocular (Heliotrope rash), and extensor skin sites Nailfold telangiectasiasGottron’s papulesDermatomyositis
Dermatomyositis(periungal telangiectasias, gottrons papules)Reiter’s Disease Urethritis, arthritis, ocular findings, and oral ulcers in addition to psoriasiform skin lesions. Keratoderma blenorrhagicum (feet) Balanitis circinata (penis)
Reiter’s DiseaseKeratoderma Blenorrhagicum
Reiter’s Disease(balanitis circinata)Hepatitis C virus
Porphyria Cutanea Tarda Lichen Planus PruritisPorphyria Cutanea Tarda
Vesicles and bullae on sun-exposed areas, scarring with milia Hypertrichosis Fragile skin with sclerodermoid changesPCT
PCT(hypertrichosis)
Lichen Planus
Purple, pruritic, polygonal papulesKoebner phenomenonWickham’s striae50% with mucosal involvement
Lichen Planus
Mucosal Lichen PlanusPruritis
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Pruritis
Thyroid diseaseGraves disease Hyperthyroidism Hypothyroidism
Graves Disease
Thyroid dermopathy (pretibial myxedema) Symmetric, non-pitting yellow-brown waxy papules/plaques Due to increased hyaluronic acis in dermisThyroid Dermopathy
HyperthyroidismWarm, moist skin Flushing, palmar erythema Associated with reversible alopecia and vitiligo
Vitiligo
HypothyroidismDry, cool skin Generalized myxedema Yellow hue from carotenemia Purpura from delayed wound healing Alopecia, madarosis
Carotenemia
Paraneoplastic Disorders
Acanthosis NigricansDermatomyositisCushing’s DiseaseSign of Lesser-TrelatParaneoplastic PemphigusHypertrichosis Lanuginosa
Acanthosis Nigricans
DermatomyositisCushing’s syndrome(buffalo hump and striae)
Sign of Lesser-TrelatParaneoplastic Pemphigus
Erythema Gyratum Repens(associated with cancers above diaphragm)Hypertricosis Lanuginosa Acquisita
Nutritional Disorders
1. Marasmus 2. Kwashiorkor 3. Pellagra 4. Scurvy 5. Zinc deficiencyMarasmus
Marasmus = protein/calorie malnutrition. Cutaneous Manifestations: Emaciation with thin, lax, and wrinkled skin. Fine scaling with hyperpigmentation. Follicular hyperkeratosis Purpura Thin hair and nails.Marasmus
MarasmusKwashiorkor
Decreased protein intake Dyschromia (irregular pigment) Hypopigmentation. Superficial desquamation with areas of erosion (flaky paint) Petechia/purpura Thin hair/nailsKwashiorkor
KwashiorkorPellagra
Niacin deficiency (Vit B3)Triad of dermatitis, diarrhea, dementiaPhotosensitive eruption around neck known as “Casal’s necklace”Pellagra
PellagraCasal’s neckaceScurvy
Vitamin C deficiency Follicular hyperkeratosis with corkscrew hairs Perifollicular hemorrhage Gingival hypertrophy with erosive bleeding gums.Scurvy
Zinc DeficiencyAcquired -deficient intake, high fiber intake, malabsorption Inherited (acrodermatitis enteropathica) zinc deficiency -defect in intestinal absorption of zinc Dermatitis, diarrhea, alopecia Periorificial and acral distribution
Acrodermatitis Enteropathica
Acrodermatitis Enteropathica
A couple of randoms you should know…
SarcoidosisMultisystem granulomatous disease Skin affected in 20-35%
Neurofibromatosis
Von Reckinghausen’s diseaseAutosomal dominantNeurofibromin gene, Chr 17Tuberous Sclerosis
Autosomal Dominant Hamartin and Tuberin (TSC 1 and 2) MR, Seizures (variable)QUIZ TIME!!!
Very itchy.Lichen Planus (HCV)
Anterior lower legNecrobiosis Lipoidica (DM)
?Pyoderma Gangrenosum (IBD)
?Porphyria Cutanea Tarda
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SLE
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