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Flexural Eczema
Definition: Atopic dermatitis that develops in flexural areas (backs of knees, inner elbows, wrists). Location: Eczema refers to skin conditions causing itchy, inflamed, cracked, and sore patches.Flexural eczema occurs where skin bends or folds (e.g., joints, skin creases).Common areas: inner elbows, behind knees, wrists, ankles. Affected Population: Common in late…
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Urticaria
Clinical Recommendations Urticaria Characteristics Etiology and Pathophysiology Aggravating Factors Classification CLASSIFICATION ACCORDING TO SITE Clinical History and Examinaiton Possible Etiologies: CLINICAL CLUE POSSIBLE ETIOLOGY Abdominal pain, dizziness, hypotension, large erythematous patches, shortness of breath, stridor, tachycardia Anaphylaxis Dermatographism, physical stimuli Physical urticaria Food ingestion temporally related to symptoms Food allergy…
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Lichen simplex
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Bullous pemphigoid
most common form of autoimmune subepidermal blistering disease. occurs in 0.3% of cancer patients treated with checkpoint inhibitors, antibiotics, penicillamine, potassium iodide, frusemide, captopril, gold, penicillin, sulfasalazine, and topical fluorouracil looks like: treatment
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Prurigo nodularis / Nodular prurigo
DDx Mx
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Pompholyx
It is not related to occlusion of sweat glands as was first thought when the disease was recognised over 100 years ago, but there are some factors associated with the disorder, including: DDx Mx
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Cercarial dermatitis(swimmer’s itch)
caused by Preventative measures To reduce parasite numbers in the environment: To reduce the risk of cercariae on the skin: Symptomatic measures for itch and rash outcome
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Grover disease
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Golfer’s vasculitis (summer leg rash)
Brachioradialis pruritus ‘golfer’s itch’
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Asteatotic eczema (winter itch)
©DermNet NZ www.dermnetnz.org 2022 CLINICAL FEATURES TREATMENT
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Erythrasma
Who gets erythrasma? Cause Clinical features Types of erythrasma Complications Diagnosis Treatment Prevention
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Pruritus ani
Typical Patient Profile: Aetiology Idiopathic Causes: Benign Aetiology: Faecal Soiling, Diet, and the Itch-Scratch Cycle Causes of Faecal Soiling: Contributing Factors: Anorectal Conditions Common Conditions: Serious Conditions: Skin Disorders Contact Dermatitis: Therapeutic Agents: Infections Fungal Infections: Bacterial Infections: Parasitic Infections: Investigations Initial Review: Tests: Management Normalisation of Bowel Motions: Cleaning…
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Lichen planus
Causes: characterised by MANAGEMENT
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Dermatitis herpetiform
This extremely itchy condition is a chronic subepidermal vesicular condition in which the herpes simplex-like vesicles erupt at the dermo-epidermal junction. Who Gets Dermatitis Herpetiformis? Pathology Differential Diagnosis of Dermatitis Herpetiformis Disease Differentiating features Dermatitis herpetiformis Pruritic, polymorphic, grouped and symmetrical lesions consisting of erythema, urticarial plaques, papules, vesicles and…
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Scabies
Differential diagnoses of classical scabies Insect bites Infections Dermatitis Immune-mediated Mosquitos Folliculitis Eczema Papular urticarial Midges Impetigo Contact dermatitis Bullous pemphigoid Fleas Tinea Pityriasis rosea Bedbugs Viral exanthems Diagnosis: Differential Diagnoses: Insect bites Infections Dermatitis Immune-mediated Mosquitos Folliculitis Eczema Papular urticarial Midges Impetigo Contact dermatitis Bullous…
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Generalised pruritus
CAUSES: History Key examination Key investigations to consider Treatment