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Cat-scratch disease. An overview based on a study of 1,200 patients.

This study by one individual of 1,200 patients with cat-scratch disease provides a heretofore unavailable realistic evaluation of a common infectious disease. All patients had lymphadenopathy, a prerequisite for diagnosis. Suppuration occurred in 11.8% of patients. Cat contact was established for 99.1%, and the cat was immature in the vast majority. An inoculation site, the most neglected feature in the study of the patients, was detected in 92.6%. The results of a skin test, considered as specific as the standard tuberculin test and to be safe but not standardized, was positive in 99%. The 12 patients with negative skin tests probably were tested too early in the course of the disease to have developed reactivity. Skin tests of 578 family members of patients, who served as controls, gave positive results in 18.5%. Of 60 patients with unusual manifestations, 48 had the oculoglandular syndrome of Parinaud. Other manifestations included erythema nodosum, encephalopathy, osteolytic lesions, thrombocytopenic purpura, and erythema marginatum. Most patients in this series had received antibiotics of many types during the course of the disease. None appeared beneficial. The disease is benign in character in a majority of patients. Surgical removal of involved lymph nodes or biopsy of lymph nodes or inoculation sites is not necessary for diagnosis or management. A survey of hospitals in the United States discharging more than 750 pediatric patients annually indicates that cat-scratch disease is a problem in all sections of the country.

Adolescent↗

Cat scratch disease: the rare role of Afipia felis.

Since its isolation in 1988, Afipia felis has been associated with cat scratch disease (CSD) in only one report and its role in CSD has been questioned. We have cultured A. felis from a lymph node of a patient with CSD. 16S rRNA gene sequencing, DNA relatedness studies, fatty acid analysis, and PCR of the A. felis ferredoxin gene showed that the isolate is identical to the previously reported A. felis isolate. To determine the role of A. felis in CSD, PCR of the 16S rRNA gene followed by hybridizations with specific probes were performed with lymph node specimens from CSD patients. All 32 specimens tested positive for Bartonella henselae and negative for A. felis. We conclude that A. felis is a rare cause of CSD. Diagnostic tests not conducive to the identification of A. felis might cause the diagnosis of CSD due to A. felis to be missed.

Adult↗

[Serous macular detachment as an atypical sign in cat scratch disease].

CASE REPORT: A 58-year-old woman presented with 0.1 visual acuity in the left eye associated with a serous retinal detachment of the macula as the only ocular manifestation of cat scratch disease. This diagnosis was made by serum antibody titers and the clinical course. DISCUSSION: Although uncommon, cat scratch disease should be considered in patients with a serous detachment in the macula region of the retina.

Animals↗

Disseminated cat-scratch disease: detection of Rochalimaea henselae in affected tissue.

An immunocompetent 9-year-old boy with disseminated cat scratch disease involving spleen, cervical and abdominal lymph nodes, skull, and one clavicle is reported. Antibodies to Rochalimaea quintana and R. henselae were detected, at increasing, then decreasing concentration. DNA extracted from the biopsied skull lesion was amplified by polymerase chain reaction and hybridized with species-specific oligonucleotides proving the presence of R. henselae in affected tissue. Our findings suggest that R. henselae plays a pathogenic role in cat-scratch disease.

Antibodies, Bacterial↗

[Histopathological aspects of the benign lymphoreticulosis, cat scratch disease, or cervical localization].

Report about 2 children affected with the cat scratch disease or lymphoreticulosis. The AA. discuss some etiological and clinic features of the malady, especially emphasizing the typical anatomopathological findings, which in the majority of the occurrences, allow the actual diagnosis. This is a disease of low incidence, but must be bear in mind when dealing with any cervical lump.

Cat-Scratch Disease↗

Cat-scratch disease associated with an osteolytic lesion.

Lytic bone involvement accompanying cat-scratch disease has been described previously in three patients. I observed a fourth patient with this pathologic condition and noted variations among the four patients. To my knowledge, this patient is the first in whom extension from an involved lymph node to a bone was direct.

Bone Resorption↗

Cat scratch disease with lymphadenitis, vertebral osteomyelitis, and spleen abscesses.

In this report we describe a 30-year old male patient with vertebral osteomyelitis and spleen abscesses with cat scratch disease. The diagnosis was made on the basis of molecular detection of Bartonella henselae either on lymph node biopsies or on bone biopsy, histology of the lymph node, serology using either our in-house microimmunofluorescence assay or a commercial kit (Focus Technologies). Immunofluorescent detection was also performed directly on slide appositions using a monoclonal antibody. Treatment consisted of administration of antibiotics with rapid clinical improvement and a stabilization of skeletal lesions on the magnetic resonance imaging performed three months later. Twenty two other cases of this unusual manifestation associated with cat scratch disease have been reported in the literature and are reviewed here. Our case represents the second case of osteomyelitis associated with cat scratch disease in which B. henselae has been specifically identified as the etiological agent using several direct and indirect methods.

Abscess↗

Evaluation of indirect fluorescence antibody assay for detection of Bartonella clarridgeiae and Seroprevalence of B. clarridgeiae among patients with suspected cat scratch disease.

The possibility of Bartonella clarridgeiae being a causative agent of cat scratch disease (CSD) was investigated by using indirect fluorescence antibody assays with 288 suspected CSD patients. Immunoglobulin G antibody to noncocultivated B. clarridgeiae was suitable only for detection of B. clarridgeiae antibody. Significant cross-reactivity between Bartonella henselae and B. clarridgeiae was noted, and no CSD case caused by B. clarridgeiae was detected.

Antibodies, Bacterial↗

Isolation in endothelial cell cultures of chlamydia trachomatis LGV (Serovar L2) from a lymph node of a patient with suspected cat scratch disease.

An inguinal lymph node, removed from a 21-year-old Romanian man suspected of having cat scratch disease, was sent to our laboratory for Bartonella culture. Lymph node specimens were inoculated on blood-enriched agar and in an endothelial cell culture system using the centrifugation shell vial technique. Bacteria were grown in cell monolayers and detected as positive with an anti-Bartonella henselae rabbit serum. However, such bacteria were identified as Chlamydia trachomatis biovar LGV serovar L2 by PCR sequencing techniques. Pathological examination of tissue biopsies was compatible with either lymphogranuloma venereum or cat scratch disease. The shell vial system is suitable for isolation of intracellular pathogens responsible for chronic lymphadenopathies, including C. trachomatis, Bartonella species, Francisella tularensis, and mycobacteria. However, care should be taken when identifying Chlamydia spp. and Bartonella spp. using polyclonal antibodies, since species of both genera have common antigens which are responsible for cross-reactions.

Adult↗

Cat scratch disease. Report of a case.

Members of the health care professions who examine the head and neck regions should be familiar with cat scratch disease and consider it in a differential diagnosis. This article summarizes the history, literature, diagnosis, and treatment of cat scratch disease.

Adolescent↗

Development of chronic renal disease in cats fed a commercial diet.

Chronic renal failure was observed in 10 young adult client-owned cats that had been fed 1 commercial cat food exclusively since weaning. The diet contained 40% protein and 0.32% potassium on a dry matter basis, and phosphoric acid was added during production. We attempted to determine whether exclusive feeding of this diet would induce clinical and laboratory evidence of renal dysfunction in clinically normal adult cats. Over a 2-year study, 3 of 9 of these cats developed clinical and laboratory evidence of renal dysfunction and renal lesions. Two additional cats developed renal lesions, but had normal laboratory values. The renal lesions consisted of lymphoplasmacytic interstitial nephritis and interstitial fibrosis. We concluded that chronic renal disease may develop in clinically normal adult cats fed diets high in protein and acid content, but marginally replete in potassium.

Animal Feed↗

Cat-scratch disease. Isolation and culture of the bacterial agent.

A gram-negative bacterium or its cell wall-defective variants were isolated from lymph nodes of ten patients with cat-scratch disease. Cultured bacteria were morphologically identical to vegetative and wall-defective forms seen in human tissues. Three of seven patients with recent cat-scratch disease had fourfold or greater rises in antibody titer against the cultured bacteria; the remaining four patients had maximum titers of 1:32 to 1:128. Rabbit antiserum to cultured bacilli reacted in immunoperoxidase stains with vegetative and wall-defective cat-scratch disease bacilli in lymph node, skin, or conjunctiva and with vegetative or wall-defective bacteria isolated from ten patients. Vegetative bacteria produced lesions in the skin of an armadillo identical to early lesions in human skin. Vegetative bacteria were recovered from the lesions in the armadillo.

Adult↗

[A study on wounds caused by cats as basic materials of cat scratch disease].

Between October, 1992 and March, 1993, the incidence of bite or scratch by the cat, was surveyed by questionnaire in 1,619 peoples who were veterinarians, veterinary technicians, students and the general population (male 652, female 967). The wound rate by cat: Veterinarians, veterinary technicians, students of veterinary college, students of veterinary technician school were significantly higher than the general population. Incidence of bite or scratch in the cat owner were significantly higher than the non cat owner, and the incidence of wounds in cat owners was more than 90%. Most injuries for veterinarians were of the occupational nature. Their injuries clearly differed from those of the other groups. In our survey 33 cases were suspected to have CSD; 19 of 102 veterinarians, 4 of 45 veterinary technicians, 2 of 517 students of veterinary college, 1 of 400 students of veterinary technicians, 7 of 555 in the general population. Of the seven cases suspected for CSD among the general population, four were proven to have cat-scratches, suggesting that injuries can be prevented by clipping the cat's nails at home. However, most of the injuries suffered by veterinarians are caused by bites, prevention poses a more serious problem. It is therefore important to educate people in all fields to fully understand sanitation and zoonosis including CSD, and teach them to handle their pets appropriately.

Adolescent↗

Constrictive pericarditis following cat-scratch disease in a 12-year-old female: a rare association.

We are reporting an unusual case of cat-scratch disease in a young adolescent girl presenting with recurrent ascites. The illness started with nonspecific symptoms followed by ascites and an axillary lymph node enlargement. She had recurrent ascites for 18 months associated with constrictive pericarditis. Following pericardiectomy, she had a resolution of ascites and was back to her normal life. This is a first documented report of a constrictive pericarditis following cat scratch diseases in English literature.

Cat-Scratch Disease↗