A case of Stevens-Johnson syndrome triggered by Mycoplasma infection

Atsushi Uenoyama1, Hideaki Hirai1, Yuko Saito1

  • 1Division of Oral and Maxillofacial Surgery, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University.

Journal of Oral Science
|January 18, 2026
PubMed

Insights

Stevens-Johnson syndrome (SJS), a severe mucocutaneous disorder, can be indicated by early oral lesions. Prompt recognition and interdisciplinary care are vital for Mycoplasma-associated SJS, as demonstrated in a case report.

Area of Science:

  • Dermatology
  • Infectious Diseases
  • Oral Medicine

Background:

  • Stevens-Johnson syndrome (SJS) is a rare, severe mucocutaneous reaction.
  • Mycoplasma pneumoniae is a known trigger for SJS.
  • Oral manifestations can precede other SJS symptoms.

Purpose of the Study:

  • To report a case of Mycoplasma-associated SJS with prominent early oral lesions.
  • To highlight the importance of recognizing oral manifestations in SJS diagnosis.
  • To emphasize the need for interdisciplinary management of SJS.

Main Methods:

  • Case report of a 19-year-old female patient.
  • Clinical presentation including oral erosions, blisters, fever, and cough.
  • Diagnostic confirmation of Mycoplasma-associated SJS.
  • Treatment with steroid pulse therapy and follow-up.

Main Results:

  • The patient presented with initial oral lesions followed by skin and ocular involvement.
  • Mycoplasma pneumoniae was confirmed as the causative agent.
  • Initial response to steroid pulse therapy, followed by relapse and successful re-treatment.
  • Oral manifestations served as early indicators of SJS.

Conclusions:

  • Oral manifestations can be critical early signs of Stevens-Johnson syndrome.
  • Early recognition by oral health professionals is essential for timely diagnosis and intervention.
  • Interdisciplinary collaboration improves clinical outcomes for patients with SJS.

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