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Cutaneous eruptions in Indian tick typhus.

E Jayaseelan1, S C Rajendran, S Shariff

  • 1Department of Dermatology, St. John's Medical College Hospital, Bangalore, Karnataka, South India.

International Journal of Dermatology
|November 1, 1991
PubMed
Summary

Rickettsial infections, often misdiagnosed as drug eruptions, cause fever and rash in South India. Indian tick typhus was identified as the most common cause in a Bangalore dermatology study.

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Area of Science:

  • Infectious Diseases
  • Dermatology
  • Epidemiology

Background:

  • Rickettsial infections are often overlooked causes of fever and rash.
  • Patients are frequently misdiagnosed with drug eruptions and referred to dermatology.
  • South India presents a unique epidemiological context for these diseases.

Purpose of the Study:

  • To analyze cases of rickettsial fever presenting to a dermatology department.
  • To identify the specific rickettsial agents responsible for these presentations.
  • To highlight the diagnostic importance of cutaneous manifestations.

Main Methods:

  • Retrospective analysis of 12 rickettsial fever cases.
  • Clinical evaluation focusing on cutaneous eruptions.
  • Serodiagnosis for etiological confirmation.

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Main Results:

  • Rickettsial fever was diagnosed in 12 patients over a 5-year period.
  • A distinctive cutaneous eruption was a key diagnostic clue.
  • Indian tick typhus was confirmed as the most frequent cause.

Conclusions:

  • Rickettsial infections, particularly Indian tick typhus, are significant causes of fever and rash in South India.
  • Dermatologists should consider rickettsial infections in the differential diagnosis.
  • Early recognition of the characteristic rash aids in timely diagnosis and treatment.