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Facial Reanimation, Bell's Palsy & Smile Surgery2021

Facial Palsy, Radiographic and Other Workup Negative: FROWN

Greene JJ, Sadjadi R, Jowett N, Hadlock T

Neurol Clin Pract

What Is This Study About?

This study identified a distinct group of patients with facial paralysis whose standard diagnostic workup comes back completely normal—termed FROWN. Understanding this presentation helps guide appropriate management and surveillance.

Key Findings

  • Identified FROWN as a distinct clinical entity in facial paralysis
  • These patients have progressive facial weakness despite negative imaging and lab results
  • Recommends a structured surveillance protocol for FROWN patients

What This Means for Patients

Patients whose facial paralysis has no identifiable cause on standard testing need careful follow-up. This study provides clinicians with a framework for monitoring and managing these cases.

Citation & Links

Citation: Greene JJ, Sadjadi R, Jowett N, Hadlock T. Neurol Clin Pract. 2021 Oct; 11(5):e654-e660.

PMID: 34840879PMCID: PMC8610522