firecracker feb 12 Flashcards
erythema multiforme infectious causes
HSV
Mycoplasma pneumoniae
what is erythema multiforme
acute cutaneous hypersensitivity condition
immune mediated
target like lesions
erythema multiforme most common among
males
20-40
erythema multiforme other findings besides target lesions
malaise, mylagias
macules
plaques, vesicles
erythema multiforme lesions
red center
pale inner ring
red outer ring
meds linked to erythema multiforme
penicillins
erythema multiforme diagnosis
skin biopsy
increased lymphocytes
necrotic keratinocytes
erythema multiforme treatment
stop offending agent
corticosteroid
analgesics
how does membranous nephropathy present
edema
dyspnea
risk factors for autoimmune hepatitis
caucasian/northern europe
female
acute hep a and b infections
DR3,4
membranous nephropathy treatment
corticosteroids, cytotoxic agents, statins, ACEI
lab findings in membranous nephropathy
hyperlipidemia
hypoalbuminemia
proteinuria
What is the role of anticoagulation in the management of membranous nephropathy?
increase in coagulopathies
severe proteinura >5g/day
autoimmune hepatitis serological
Anti smooth muscle
anti live rkidney microsomal
autoimmune hepatitis treatment
prednisone
azathioprine
membranous nephropathy - immunoflourescnce
granular deposits of IgG and C3
What is found on electron microscopy in patients with membranous nephropathy?
sub-epithelial immune complex deposits
secondary membranous nephropathy
hep b, c
autoimmune - lupus
drugs - gold, penicillaine
malignancies
autoimmune hepatitis
circulating antibodies
hepatocellular inflamm
fibrosis
follicular carcinoma %
15%
what is the first and second step in working up someone with a thyroid nodule?
- ultrasound (FNA)
- radionucleotide scan if suspicious
- biopsy
What percentage of thyroid CA’s are from a medullary carcinoma?
5%
medullary carcinoma - cells
parafollicular/C cells
produce calcitonin
How does follicular thyroid CA commonly spread?
hematogenous spread –> present with mets