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[Progressive pseudomyopathic spinal amyotrophies (author's transl)]
Rivista Di Patologia Nervosa E Mentale
|January 1, 1976
Summary
This study details two cases of proximal pseudomyopathic spinal amyotrophy, including a typical Wohlfart-Kugelberg-Welander syndrome. Findings highlight diagnostic challenges and the importance of genetic and clinical evaluations for spinal muscular atrophy.
Area of Science:
- Neurology
- Genetics
- Histopathology
Background:
- Spinal muscular atrophies (SMAs) encompass a group of neuromuscular disorders.
- Differentiating between various SMA subtypes, particularly those with pseudomyopathic features, can be challenging.
- Understanding genetic and clinical presentations is crucial for accurate diagnosis.
Observation:
- Two cases of proximal pseudomyopathic spinal amyotrophy were investigated.
- Case 1: A 15-year-old male with typical Wohlfart-Kugelberg-Welander syndrome, exhibiting progressive scapular and pelvic girdle muscle hypotrophy with distal limb involvement.
- Case 2: A 33-year-old male with spinal pelvic girdle amyotrophy, presenting with weakness and hypotrophy primarily in the pelvic girdle and thigh adductor muscles.
Findings:
- Both cases showed normal serum enzyme levels.
- Muscle biopsy and electromyography (EMG) confirmed spinal amyotrophy in Case 1.
- Muscle biopsy confirmed neurogenic amyotrophy in Case 2, with EMG revealing signs of both myogenic and neurogenic compromise.
- Genetic analysis indicated recessive autosomal heredity for Case 1.
Implications:
- These cases underscore the diagnostic complexities in spinal muscular atrophies.
- The findings contribute to the nosographic delimitation of different SMA types.
- Further research into the genetic and clinical spectrum of SMA is warranted.