‘When nature breaks the rules’: Guillain-barré syndrome presenting with descending paralysis

Guillain-Barré Syndrome (GBS) typically presents with ascending paralysis, but we report an atypical case involving descending paralysis in a 36-year-old male. The patient experienced upper limb weakness and respiratory muscle involvement, progressing to respiratory distress. Initial cerebrospinal fluid (CSF) analysis and nerve conduction studies (NCS) were normal, delaying the diagnosis. Treatment with intravenous immunoglobulin (IVIG) led to partial recovery. This case highlights the diagnostic challenges of atypical GBS presentations and the importance of early intervention.