Rickettsial infection of the pulmonary microcirculation

The basis for interstitial pneumonitis in Rocky Mountain spotted fever

David Walker, Cynthia G. Crawford, Barbara G. Cain

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

Pulmonary tissue from 10 patients with fatal Rocky Mountain spotted fever was examined by brightfield microscopy for histopathologic lesions and by immunofluorescence for Rickettsia rickettsii. The distribution of rickettsiae and the vasculitis of the pulmonary microcirculation coincided. The lungs demonstrated the consequent interstitial pneumonia-alveolar septal congestion and interstitial edema; alveolar edema, fibrin, macrophages, and hemorrhage; and interlobular septal edema. The effects of the rickettsial damage to the pulmonary microcirculation are an important component of the pathophysiology of severe Rocky Mountain spotted fever. The distribution of rickettsial organisms within the lung indicates that person to person aerosol transmission is extremely unlikely.

Original languageEnglish (US)
Pages (from-to)263-272
Number of pages10
JournalHuman Pathology
Volume11
Issue number3
DOIs
StatePublished - 1980
Externally publishedYes

Fingerprint

Rocky Mountain Spotted Fever
Interstitial Lung Diseases
Microcirculation
Lung
Infection
Edema
Rickettsia rickettsii
Rickettsia
Vasculitis
Fibrin
Aerosols
Fluorescent Antibody Technique
Microscopy
Macrophages
Hemorrhage

ASJC Scopus subject areas

  • Pathology and Forensic Medicine

Cite this

Rickettsial infection of the pulmonary microcirculation : The basis for interstitial pneumonitis in Rocky Mountain spotted fever. / Walker, David; Crawford, Cynthia G.; Cain, Barbara G.

In: Human Pathology, Vol. 11, No. 3, 1980, p. 263-272.

Research output: Contribution to journalArticle

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