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Massive skin necrosis in Rocky Mountain spotted fever.

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The occurrence of massive skin necrosis of approximately 50% of the body surface area in an 8-year-old girl with Rocky Mountain spotted fever is reported. Although the surgeon will not often be confronted with the management of Rocky Mountain spotted fever or its complications, certain therapeutic

Cardiac manifestations of Rocky Mountain spotted fever.

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An increasing incidence of Rocky Mountain spotted fever is being noted across the United States. From 1955 to 1978 80 children with this disease were seen in a children's hospital. Autopsies were performed in six of the nine fatal cases, and cardiac lesions were seen in each. Multifocal myocarditis

The liver in Rocky Mountain spotted fever.

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Hepatic tissues from nine patients who had fatal Rocky Mountain spotted fever were examined in sequential sections by brightfield and immunofluorescence microscopy for histologic lesions and for coincidence of these lesions with the distribution of Rickettsia rickettsii. The basic hepatic lesion in

Rocky Mountain spotted fever: a seasonal alert.

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Rocky Mountain spotted fever occurs during seasonal tick activity. A history of exposure to tick-containing habitats within the 3- to 12-day incubation period is a key epidemiological factor. The signs of fever, headache, myalgia, nausea, vomiting, and anorexia at onset of infection are difficult to

Cutaneous histopathology of Rocky Mountain spotted fever.

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The dermatologic diagnosis of Rocky Mountain spotted fever (RMSF) is often presumptive; the clinical presentation includes skin rash and febrile illness with or without a clear history of tick bite. The characteristic cutaneous manifestations include a generalized skin eruption with purpuric,

Dermal necrosis associated with Rocky Mountain spotted fever in four dogs.

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Four dogs with Rocky Mountain spotted fever developed extensive dermal necrosis. Factors contributing to this complication included delay in initiation of appropriate therapy.

Acute renal failure in Rocky Mountain spotted fever.

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Review of clinical and pathologic data from ten fatal cases of Rocky Mountain spotted fever (RMSF) revealed the importance of acute renal failure in the clinical course and of multifocal perivascular interstitial nephritis as the principal pathologic lesion. In nine cases, Rickettsia rickettsii were

Long-term sequelae of Rocky Mountain spotted fever.

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Twenty-five patients with definite or probable Rocky Mountain spotted fever (RMSF) who were hospitalized for > or = 2 weeks were identified from our database of 105 patients. Follow-up information was collected for 20 patients, per telephone and/or medical records. The remaining five patients were

Rocky mountain spotted fever: hepatic lesions in childhood cases.

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We studied 16 fatal childhood cases of Rocky Mountain spotted fever (RMSF). Hepatic histologic lesions with statistically significant differences from age- and sex-matched controls were portal triaditis consisting of polymorphonuclear leukocytes and large mononuclear cells, portal vasculitis,

The occurrence of eschars in Rocky Mountain spotted fever.

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Two patients with fatal, laboratory-confirmed Rocky Mountain spotted fever (RMSF) were noted early in their course to have a skin lesion characteristic of a rickettsial eschar. Postmortem immunofluorescent and histopathologic studies demonstrated that the lesions were sites of extensive contiguous

Acute glomerulonephritis in a patient with Rocky Mountain spotted fever.

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It is generally assumed that acute tubular necrosis is the etiology of renal failure that can occur during the course of Rocky Mountain spotted fever (RMSF). However, histologic examination of kidneys has been mainly limited to autopsy cases of fulminant infections. Acute glomerulonephritis due to

Rocky Mountain spotted fever at Koair Children's Hospital, 1990-2002.

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The reported average annual incidence of Rocky Mountain spotted fever (RMSF) in Kentucky is less than 5 per million population, although seroprevalence studies suggest that exposure to Rickettsia riskettsii, the causative agent, is relatively common among children. The experience with RMSF at Kosair

Pathology of experimental Rocky Mountain spotted fever in rhesus monkeys.

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Rhesus monkeys were inoculated intravenously or intraperitoneally with various numbers of Rickettsia rickettsii. Monkeys that were given more than 10(4) organisms intravenously died on days 3-6 after inoculation, whereas those given less than 10(3) intravenously or more than 10(4) intraperitoneally

Canine Rocky Mountain Spotted fever: a retrospective study of 30 cases.

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Rocky Mountain spotted fever (RMSF) was diagnosed in 30 dogs examined at North Carolina State University, Veterinary Teaching Hospital between 1984 and 1997. Historical, physical examination, and laboratory abnormalities were reviewed. Diagnostic criteria included a four-fold rise in antibody titer

Myocardial disease in Rocky Mountain spotted fever: clinical, functional, and pathologic findings.

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Rocky Mountain spotted fever is an acute febrile illness with a significant mortality rate. Cardiac involvement has been sporadically reported, but is more common than appreciated from pathologic studies. The lesion is one of vasculitis, with secondary thrombosis and tissue necrosis. Cardiac

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