CAT scratch disease.
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Cat-Scratch Disease↗
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Regional lymphadenopathy in cat-scratch disease: ultrasonographic findings.
BACKGROUND: Cat-scratch disease (CSD) is considered to be an emerging disease worldwide and is caused by Bartonella henselae, a gram-negative bacterium introduced by a scratch or bite of a cat. The most common clinical manifestation is regional lymphadenopathy, but clinical recognition may be difficult, as atypical manifestations may occur. The diagnosis is confirmed with serologic testing and histology is rarely needed. This paper is based on our experience with the use of ultrasonography in the diagnosis of CSD. OBJECTIVE: The aim of this study was to describe the sonographic and color Doppler appearances of regional lymphadenopathy in CSD, as this has not widely reported in the literature. MATERIALS AND METHODS: Forty-seven patients (average 9.4 years) were included who all had serologically and/or histologically proven CSD and had been studied using US early in the clinical course. All had a positive history of exposure to cats and exhibited regional lymphadenopathy. RESULTS: US showed large hypoechoic adenopathy with some transmission enhancement and high vascularization on color-flow Doppler imaging. In 30 patients, abdominal US was also performed and splenic and/or hepatic granulomata were found in 10. CONCLUSIONS: In our experience, sonography and especially color-Doppler and power-Doppler sonography was helpful in the diagnosis of CSD. We believe it should be used in the initial study of children with regional lymphadenopathy, and serologic testing should be performed when CSD is suspected.
Adolescent↗
Cat-scratch disease: orthopaedic presentation.
Although cat-scratch disease is not uncommonly treated by pediatricians, it is rarely seen by orthopaedists. In this review of cat-scratch disease, two cases with orthopaedic manifestations are high-lighted. One patient had a positive bone scan in the distal humerus that simulated osteomyelitis on presentation. The second patient presented with a rapidly enlarging soft-tissue mass in the arm that resembled a soft-tissue sarcoma. The diagnosis of cat-scratch disease eventually was made late in the course of management in both cases. Both patients underwent surgical drainage and evacuation of the suppurated lymph node and recovered without sequelae.
Adolescent↗
Cat-scratch disease: a case report.
Cat-scratch disease is the most common cause of benign lymphadenopathy in children and young adults. A 21-year-old patient presented with a 14-day history of asymptomatic left submental swelling. Clinical and radiographic examination revealed no dental cause. An enlarged, firm nodule was excised. The histopathologic appearance was consistent with cat-scratch disease. This article summarizes the relevant literature and discusses diagnosis and treatment of cat-scratch disease.
Adult↗
Cat-scratch disease simulating Histiocytosis X.
Cat-scratch disease is a self-limited condition commonly causing a benign chronic lymphadenopathy in children. Osteolytic lesions are a rare complication, but have been previously reported. We report a case of a solitary osteolytic lesion of the skull whose clinical, radiographic and pathological features were initially interpreted as being consistent with Histiocytosis X. Subsequently, positive serological titers for Bartonella, a history of a cat-scratch antecedent to the onset of clinical symptoms and review of the original histopathology confirmed the diagnosis of cat-scratch disease. We reviewed the English language literature on osteolytic lesions associated with cat-scratch disease and compare the current case with those previously reported.
Antibodies, Bacterial↗
The current status of cat-scratch disease: an update.
Cat-scratch disease (CSD) is a benign inoculative lymphoreticulosis, first described in independent reports by Pierre Mollaret [1] and Robert Debre in 1950 [2]. The disease usually self-limited, with spontaneous resolution occurring after several weeks, appears to be related to the presence of an identified gram-negative bacteria.
Acquired Immunodeficiency Syndrome↗
[Problems diagnosing cat scratch disease].
The diagnosis of cat scratch disease is hampered by the fact the basic laboratory investigations fail to demonstrate characteristic changes of this disease, and the diagnosis is based usually on epidemiological history and the clinical symptom complex. The diagnosis is confirmed by the complement binging test with the antigen obtained from pathologically changed lymph nodes with values over 1.5 being pathognomonic for the disease, and by the cutaneous tests of Hanger-Rose and Mollaret. The authors present 2 cases treated for the disease stressing differences in its course.
Adult↗
[Pefloxacin and cat-scratch disease].
Three patients with cat scratch diseases were treated with pefloxacin (800 mg p.d.). Three of four criteria of the diagnosis were present. The pathogen of the disease is probably an intracellular Gram negative bacilli with a deficient wall. Improvement was obtained in one case and partial response in two other cases.
Adolescent↗
Cat-scratch disease and the role of the domestic cat: vector, reservoir, and victim?
An unidentified coccobacillus has been implicated recently as the agent of Cat-Scratch Disease (CSD) in human beings. Although a history of close contact with a domestic cat is frequently elicited from CSD patients, the exact role of this animal in the epidemiology of the disease remains obscure. Current thinking holds that the cat merely serves as an efficient inoculator of a free-living organism. We believe that the cat is not only an important vector of the CSD bacillus, but it may also serve as the principal reservoir, with the organism occasionally present among the oral flora. Under some circumstances (e.g., immunoincompetency) the CSD bacillus may also infect the lymph nodes of cats, resulting in a disease similar to CSD in human beings.
Animals↗
Granulomatous hepatitis associated with cat scratch disease.
In three patients with cat scratch disease the liver was affected. All three had high fever (39 degrees C) for more than 3 weeks. Two of them had no peripheral adenopathy. Computed tomography of the abdomen revealed focal hepatic defects in two patients and periportal and periaortic adenopathy in the third. At laparotomy, there were nodules on the liver surfaces of all patients and histological examination revealed necrotising granulomata. The Warthin-Starry silver stain showed organisms consistent in appearance with the cat scratch bacillus in the liver and a periaortic lymph node of one patient, in the liver of the second patient, and in the axillary lymph node of the third. In all three patients the clinical findings and radiological abnormalities improved without specific therapy. A review of the surgical pathology files of Washington University revealed only two other cases of granulomatous hepatitis in children over a 6-year period. These findings indicate that cat scratch disease should now be included in the differential diagnosis of granulomatous hepatitis, at least in children. The absence of peripheral adenopathy in two of the three patients with granulomatous hepatitis suggests that the clinical spectrum of cat scratch disease may be broader than previously appreciated.
Cat-Scratch Disease↗
[Reactive arthritis after cat bit: a rare manifestation of cat scratch disease--case report and overview].
Cat scratch disease (CSD) is a rarely recognized infectious disease in Germany. Only a few years ago the causative agent, Bartonella henselae, could be isolated. The typical clinical manifestations of CSD consist of skin changes at the inoculation site and a benign lymphadenopathy; other manifestations are rare. We report the case of a 47 year old woman, who developed a reactive spondylarthropathy with synovitis of finger joints, polyarthralgias of large- and medium-sized joints, and inflammatory spinal pain after a cat bite. The rheumatic manifestations resolved after 10 months by treatment with non-steroidal antirheumatic drugs. Only a few cases of rheumatic manifestations associated with CSD have been described in the literature. Because the prevalence of Bartonella henselae infection of cats is high in Europe, rheumatic manifestations might be more frequent. Diagnosis of CSD is now improved by the development of serological tests. We provide an overview of the clinical manifestations and the diagnostic criteria.
Animals↗
Prevalence of antibodies to Bartonella henselae in patients with suspected cat scratch disease (CSD) in Italy.
Cat scratch disease (CSD) is a relatively new diagnosed illness with clinical signs of self-limiting regional lymphadenopathy accompanied by symptoms of fever and malaise, to encephalopathy and neuropathy, occurring after a cat scratch or flea bite. Bartonella henselae is now accepted as the etiologic agent of CSD. From January 1994 to September 1998, 412 patients were evaluated for suspect CSD in Italy. Sera were tested for antibodies to B. henselae by a commercially available indirect immunofluorescent assay (IFA), based on B. henselae-infected Vero-cells as the antigen substrate. Of the 412 patients, 26 (6.3%) were considered positive having titers of immunoglobulin G (IgG) to B. henselae of 64 or higher. In these patients CSD was indeed confirmed by either histopathologic examination of lymph nodes biopsy or fourfold raise in antibody titers. Nevertheless, sera were tested by IFA for Afipia felis and one showed a double reactivity to B. henselae and A. felis. Finally, three sera, negative to B. henselae serology, were positive to A. felis. Three hundred and eighty-six patients received alternative diagnoses. One hundred and twenty-five serum samples from control subjects were negative by IFA for either B. henselae or A. felis. Moreover, a cross-reactivity with sera from patients affected by other diseases was not observed. Our study shows that the ascertained cases of CSD are etiologically determined by B. henselae, IFA assay is confirmed as a useful tool in the laboratory diagnosis and, over a 5 years period of study, the incidence of CSD in Italy has been low.
Adolescent↗
Cat scratch disease: magnetic resonance imaging findings.
Cat scratch disease is an infectious lymphadenitis frequently occurring in children and adolescents. We present the magnetic resonance imaging findings of two patients with this disease. In both cases, lymphadenopathy was characterized by extensive stranding of the surrounding soft tissues, consistent with the inflammatory nature of this condition. Magnetic resonance imaging can be diagnostic and may obviate the need for invasive means of evaluation in patients suspected of having cat scratch disease.
Adult↗
Cat scratch disease (CSD) in patients with stellate neuroretinitis: 3 cases.
This case series describes three patients with a similar clinical picture: unilateral abrupt visual loss, optic nerve edema, and a macular star exudate. In all cases we found significant antibody titers to Bartonella henselae, the causative agent of cat scratch disease. Cat scratch disease seems to be the most common cause of stellate neuroretinitis, formerly known as Leber's idiopathic stellate retinopathy. A review of the pertinent literature shows that serologic evidence of B. henselae is sufficient to confirm the diagnosis given the low incidence of significant titers in the general population. Cat scratch disease is usually a self limiting disorder in immunocompetent patients, but treatment with doxycycline is recommended.
Adult↗
CAT scratch disease.
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Cat-Scratch Disease↗
[Benign inoculation lymphoreticulosis; cat scratch disease].
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Cat-Scratch Disease↗
[Cat-scratch disease].
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Cat-Scratch Disease↗
Systemic cat scratch disease: hepatic and splenic involvement about 3 pediatric cases.
Numerous diseases can lead to multinodular lesions of liver and spleen; surgical biopsy can be required for the etiologic diagnosis. Among these diseases, systemic cat scratch disease has been recently described. Macroscopical appearance of the lesions is evocative and must be known by surgeons. Three children with systemic cat scratch disease involving liver and spleen are reported.
Biopsy, Needle↗