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Exam Cram
Exam Cram
Erythema nodosum is a common dermatological association with a range of medical conditions, particularly Sarcoidosis , Inflammatory Bowel Disease and Tuberculosis
Presentation: bilateral lower limb nodules- painful, erythematous
Diagnosis: clinical
Management: NSAIDs
Outline
Outline
Aetiology
Aetiology
Classification:
Diseases
Inflammatory: Behcet's Disease, IBD, Sarcoidosis
Infectious: Streptococcus, Tuberculosis, Mycoplasma, Yersinia enterocolitica
Medications (CANS)
COCP
Antibiotics: Amoxicillin, Sulphonamides (trimethoprim)
Nsaids
Pregnancy
Idiopathic
Background
Background
Commonest form of panniculitis (inflammation of subcut fat)
Caused by hypersensitivity reaction
Prognosis: self remitting within 2-8 weeks
Assessment
Assessment
Presentation
Bilateral leg pain
Fever, malaise, arthralgia
Examination
Tender, red nodules on anterior shins, bilaterally
Change colour
Investigation
Raised inflammatory markers- CRP, ESR, neutrophils
Investigate underlying cause
Sarcoidosis- CXR: bilateral hilar lymphadenopathy
Streptococcus throat swab
TB: investigations- CXR, gold interferon
Management
Management
NSAIDs
Non estrogen contraceptive
Treat underlying cause
References
References
Hafsi W, Badri T. Erythema Nodosum. [Updated 2022 Nov 28]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2024 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK470369/
Written in 2024.
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