Paraneoplastic/Antibody-Mediated Syndromes Flashcards
Anti-NMDA receptor
ovarian teratoma; causes limbic encephalitis; psychosis, dyskinesias
Anti-AMPA receptor
breast cancer, lung cancer, thymoma; causes limbic encephalitis, nystagmus
Anti-GABA-B receptor
SCLC; causes limbic encephalitis, orolingual dyskinesias
Anti-LGI1
SCLC, thymoma; causes limbic encephalitis
Anti-CV2; CRMP5 IgG
SCLS, thymoma; causes limbic encephalitis; aphasia, chorea, ataxia, myelopathy, radiculopathy, neuropathy, LEMS
Anti-Hu (ANNA1)
SCLC; causes limbic encephalitis; autonomic, peripheral, sensory neuropathy.
Anti-Ma2
testicular cancer; causes limbic encephalitis, hypothalamic/pituitary disorder
Anti-GAD65
SCLC, thymoma, renal cell, breast, colon; causes limbic encephalitis, stiff man syndrome, ataxia, ophthalmoplegia, parkinsonism, myelopathy
Anti-Yo (PCA1)
ovarian, breast cancer; causes cerebellar ataxia, brainstem encephalitis, myelopathy, radiculopathy, peripheral neuropathy
PCA-2
SCLC; limbic encephalitis, LEMS, peripheral and autonomic neuropathy
Anti-Tr (PCA-Tr)
Hodgkin lymphoma; cerebellar ataxia
Anti-Ri (ANNA2)
SCLC, breast cancer; dementia, limbic encephalitis, myelopathy, peripheral neuropathy
Anti-Hu (ANNA1) in peds
Neuroblastoma in children with opsoclonus-myoclonus syndrome
ANNA-3
lung, esophageal cancer; limbic encephalitis, myelopathy, peripheral neuropathy
AGNA
SCLC; limbic encephalitis, LEMS, neuropathy
Amphiphysin IgG
SCLC, breast cancer; limbic encephalitis, aphasia, Stiff person, myelopathy, neuropathy
Anti-Ma1/Ma2
breast, colon, testicular cancer; limbic encephalitis, hypothalamic/pituitary disorder
Anti-VGKC complex (LGI1 or CASPR2)
SCLC, thymoma, breast, prostate; limbic encephalitis, hypothalamic disorder, EPS, myoclonus, peripheral and autonomic neuropathy
Anti-P/Q, N-type Calcium channel (VGCC)
SCLC, breast, gyn cancer; encephalopathy, myelopathy, neuropathy, LEMS
Anti-NMO
thymoma; relapsing optic neuritis, transverse myelitis, encephalopathy
Anti-neuronal ganglionic AChR
SCLC, thymoma, other AC; dysautonomia
Anti-muscle AChR
thymoma, lung cancer; MG
Anti-glycine receptor
Stiff man syndrome
Anti-GluR5
Hodgkin lymphoma; limbic encephalitis
Painless visual loss with night blindness, light induced glare, photosensitivity, peripheral ring like scotomas; normal fundoscopy
retinopathy associated with CRMP-5; Anti-recoverin
Memory problems, personality change, focal seizures, altered mood. T2 hyperintensity in hippocampi
limbic encephalitis
vision disturbance, tremulousness, disturbed sleep, screaming spells. Lightning like irregular movements of the eyes and limbs
opsoclonus-myoclonus; Anti-Hu (ANNA1)
diplopia, vertigo, nausea, vomiting, ataxic dysarthria, nystagmus, gait, limb incoordination
Anti-Yo (PCA1); Anti-P/Q type calcium channel; Anti-Tr (PCA-Tr)
Chorea
CRMP-5 IgG
Parkinsonism, cranial neuropathies, disorders of eye movement and balance
brainstem encephalitis, Anti-Ma1/Ma2
Jaw dystonia, paroxsymal laryngeal spasm
Anti-Ri (ANNA2)
Myelopathy with T2 signal abnormalities on MRI and oligoclonal bands
CRMP-5 IgG, amphiphysin Ab, NMO, MS
stiffness and spams of lumbar and proximal lower extremities, exaggerated startle response, loss of protective reflexes while falling
Stiff man syndrome, Ampiphysin IgG, Anti-GAD65, Anti-Glycine receptor; often associated with T1DM and autoimmune thyroid disease
mydriasis, dry mouth, early satiety, nausea, small bowel pseudo-obstruction, constipation, orthostatic HoTN, heat intolerance, bladder symptoms
dysautonomia, ANNA-1; Anti-neuronal ganglionic AChR
subacute progressive fatigue, weakness, worsens with exertion and improves with rest
LEMS; Anti-P/Q, N-type Calcium channel; Anti-CV2; CRMP5 IgG; PCA-2; AGNA
Anti-MAG
Waldenstrom macroglobulinemia; peripheral neuropathy