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Muscle Wkness Diff
Stack #24939
| Differential Dx | Findings |
|---|---|
| UMN Signs | Spasticity, Hyper-reflexia, Clonus, Babinski Sign |
| LMN Signs | Less Muscle Tone, Atrophy, hypo-reflexia, Areflexia, Fasciculations |
| Extra- and Intramedullary Spinal Cord Problems, or Intracranial | Just UMN |
| Epidural hematoma, abscess, or metastasis; herniated disc, osteophytic ridge, dural tumor | Extramedullary S.C. |
| myelitis, myelopathy, tumor, trauma, vascular, degen, congen, | Intramedullary S.C. |
| Neurological, Muscular, Vascular, other systemic | Muscle Weakness |
| ALS, B12 defic, Friedreich's ataxia, tabes dorsalis, conus lesions | Both UMN & LMN |
| Peripheral Neuropathy, Anterior horn problems, cauda equina, radiculopathy, plexopathy | Just LMN |
| Anterior Horn | spinal muscular atrophy, poliovirus |
| Cauda Equina | herniated disc, spinal stenosis, herpes simplex 2, tumor |
| radiculopathy | herniated disc, herpes zoster/varicella, diabetes, tumor |
| plexopathy | tumor, radiation, diabetes, trauma |
| Myastenia gravis, eaton-lambert synd, botulism, drugs, myopathies, dystrophies | Neither UMN/LMN |
| hyper/hypothyroid, poly- or dermatomyositis, steroids | Acquired (creatine kinase test, thyroid studies, EMG, and biopsy) |
| Duchenne, Becker MD | X-linked myopathies |
| Myotonic, fascioscapulo, oculopharyngeal MDs, or congen myopathy | Autosomal Dominant myopathies |
| Limb Girdle MD, Glycogen Disorders, lipid disorders | Autosomal recessive myopathies |
| Mitochondrial myopathies | Maternal inherited myopathies |
Created by:
marnold
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