Myasthenia Gravis Presenting as Graft versus Host Disease after Allogeneic Blood Stem Cell Transplant

Table 1

Diagnostic testing.

MRI brain	No acute cerebral infarction
Cerebrospinal fluid	Glucose 54, RBC 21, protein 25, WBC 7, 10% segmented neutrophils
Autoimmune, rheumatologic: anti Jo -1, RNP, SRP, PL-12, PL-7, PM-SCL 100, PM-SCL 75, RO-52, JO-1, antimyeloperoxidase, ANA, C-ANCA, P-ANCA, rheumatoid factor	Negative
Infectious: parvovirus B19, hepatitis A, hepatitis B, hepatitis C, EBV, west nile, CMV	Negative
Electromyography studies	Severe axonal neuropathy or demyelination. No evidence of neuromuscular junction disorder or myopathy
Acetylcholine receptor binding antibody	Elevated, 2.15 nmol/L (normal: 0–0.24)
Acetylcholine receptor modulating antibody AChR binding Ab	45% (normal: 0–20%)