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At least 721 records · Page 40Linked to original sources
PubMed2002

[Usefulness of ultrasonography in the study of superficial lymph nodes. A case of cat scratch disease].

Ultrasonography is a wide spread, non-invasive and repeatable imaging methodology. It is able to evidence any type of lesion and to describe its extent, its site and its content. The ultrasound role in the diagnosis of a case of cat scratch disease in a 44 year old man is described. Symptoms included intermittent fever, pain and palpable tumefactions in right armpit and elbow. The patient underwent routine and lymphoadenopathy specific laboratory data. Ultrasound examination and echo-guided fine-needle biopsy of the evident lesions were performed. These exams, related to pathological clinical presentation, have shown a chronic granulomatous lymphadenopathy like cat scratch disease. This case provides further evidence that ultrasound procedures might play an important role in differential diagnosis of palpable lesions.

Adult↗
PubMed1999

Hypercalcemia associated with granulomatous disease in a cat.

A 6-year-old cat was examined because of recurrence of a draining mass involving skin and subcutaneous tissues of the caudoventral aspect of the abdomen. Previous treatment included administration of antimicrobial drugs and corticosteroids and surgical excision. Atypical mycobacteria were seen during cytologic examination of biopsy specimens of the mass; Nocardia sp was cultured. While hospitalized, the cat developed hypercalcemia and was found to have high serum calcitriol concentrations. Treatment consisted of administration of ciprofloxacin and trimethoprim-sulfadiazine because of the infection and administration of sodium chloride solution, furosemide, and calcitonin because of the hypercalcemia. The cat recovered.

Abdominal Muscles↗
PubMed1999

Serologic response to Bartonella henselae in patients with cat scratch disease and in sick and healthy children.

Indirect fluorescent antibody assay (IFA) is the most reliable test for detecting antibody to Bartonella henselae in the diagnosis of cat scratch disease (CSD). Recently, an ELISA test has been proposed, but conflicting results are reported. We compared IgG-IFA and IgG-IgM ELISA methods in CSD patients and in healthy children. We also tested ELISA specificity in a large group of healthy controls and in children with lymphoma-associated lymphadenopathy and with pyogenic lymphadenitis. The ELISA procedure was positive in 69/78 patients with CSD (sensitivity 89.6%), in 5/100 healthy children (specificity 95%), in 2/51 patients with non-Hodgkin's lymphoma or pyogenic lymphadenitis (specificity 96%) and in 27/296 blood donors (specificity 91.6%). In 34 patients with CSD, ELISA IgM and IgG responses decreased significantly between time of diagnosis of the disease and recovery. We found significantly higher IgG-ELISA titres in cat-owners, whether blood donors or healthy children, than in non-cat-owners. The IgG-IFA test gave positive results in 69/78 patients with CSD (sensitivity 89.6%) and in 5/62 healthy controls (specificity 92.5%). The ELISA method is a cheap, sensitive method for determining antibody response to Bartonella henselae infection and is also important for evaluating the clinical course of the disease and the efficacy of antibiotic therapy. The high specificity of ELISA in patients with non-Hodgkin's lymphoma will help the clinician to exclude a potentially life-threatening disease associated with lymphadenopathy.

Adolescent↗
PubMed2001

Circulating cytokines in patients with cat scratch disease.

Levels of circulating interleukin (IL)-2, IL-6, and IL-10, measured by enzyme-linked immunosorbent assay, were significantly higher in patients with cat scratch disease (CSD) than in healthy control subjects; no induction of IL-12 was observed, and levels of interferon-gamma and IL-4 were generally not detectable. This is the first report showing increased circulating cytokine levels in patients with CSD. The induction of these mediators can partly explain some clinical and pathological features of the disease.

Antibodies, Bacterial↗
PubMed1984

[Causes of death and disease in cats based on 1969-1982 autopsy statistics].

The post mortem investigation of 4561 cats during 14 years is analysed according to the diagnosis. The age of the cats necropsied ranged from 1 day to 22 years, with an average of 3,3 years. The sex distribution was about 1:1. The most common disease is feline panleucopenia (16,6%) followed by traumata (11,5%), disorders of the urinary tract (7,0%), feline infectious peritonitis (6,0%), disorders of the circulatory system (5,8%), and diseases of the digestive tract (5,3%). The majority of kittens died of virus diseases, mainly feline panleucopenia. Feline leucosis is found among all groups of age. In middle aged animals (5-10 years) feline leucosis and diseases of the urinary tract are the main causes of death. Cats older than eight years show a high rate of tumor incidence, especially those of non lymphatic origin. Among siamese cats congestive cardiomyopathy is very common. A sexual disposition is notable for the feline urologic syndrome, occurring predominantly in male individuals.

Age Factors↗
PubMed1994

Cat-scratch disease in Italy: a serological approach.

The results of studies on the serologic responses to Afipia felis and Rochalimaea henselae in suspected patients for Cat Scratch Disease (CSD) are illustrated. This preliminary study performed using Indirect Immunofluorescence Assay, proved negative for A. felis and R. henselae in some patients and positive in others; in a few instances the test was positive for both organisms. Additional microbiological and serological studies are needed to clarify the exact role of these microorganisms in causing CSD.

Adolescent↗
PubMedDate not supplied

Gray-scale sonographic evaluation of cervical lymphadenopathy in cat-scratch disease.

PURPOSE: The aim of this study was to characterize the gray-scale sonographic findings in the lymph nodes of patients with cat-scratch disease (CSD). METHODS: We analyzed the sonograms of cervical lymph nodes in 41 patients with proven CSD between January 1997 and October 1999. RESULTS: A total of 222 involved lymph nodes were detected. Involved nodes were most commonly found in the middle cervical (58%), parotid (37%), upper cervical (37%), and submandibular (17%) regions. We found acute, chronic, or abscessed lymphadenopathy in 63%, 12%, and 24% of patients, respectively. The size of involved lymph nodes ranged from 12 x 4 mm to 35 x 26 mm. The largest involved node had a short axis/long axis ratio of 0.5 or more in 61% of patients. Useful features for the differential diagnosis included markedly decreased echogenicity (100%), normal surrounding tissues (100%), and the presence of an echogenic hilum (76%). Posterior sound enhancement was significantly associated with larger and abscessed lymph nodes. CONCLUSIONS: Despite the absence of a specific sonographic finding for CSD, gray-scale sonography can provide clues to the diagnosis of CSD in the proper clinical setting.

Adolescent↗
PubMed1998

IgM to Bartonella henselae in cat-scratch disease and during acute Epstein-Barr virus infection.

The diagnostic value of IgM to Bartonella henselae was evaluated in 20 children with cat-scratch disease (CSD) and controls consisting of 20 blood donors and 20 children with enlarged lymph nodes without CSD by two indirect immunofluorescence assays (IFA). One was based on B. henselae cocultivated with Vero cells (host cell-associated IFA), and the other on B. henselae grown on agar (host cell-free IFA). With the host cell-associated IFA, 18 of 20 children with CSD revealed IgM, whereas only 14 did so with the host cell-free IFA. Sera of two blood donors as well as sera from three children with enlarged lymph nodes without CSD showed also positive IgM to cell-associated B. henselae. This study reveals that the IFA applied had sensitivities of 70-90% and specificities of 87.5-100% for detecting IgM to B. henselae. Additionally, 20 patients with IgM to Epstein-Barr virus (EBV) capsid antigen were tested for IgM to B. henselae. Sera of 16 and 9 of these patients revealed IgM to B. henselae with the host cell-associated and the host cell-free IFA, respectively. Using Western blot these sera were demonstrated to react against linearized proteins of Vero cells and of B. henselae. Thus, since acute EBV infection may substantially reduce the specificity of B. henselae-specific IgM tests, we conclude that diagnosis of CSD should be confirmed by a significant IgG titer to B. henselae or by detection of this pathogen.

Animals↗
PubMed2001

Serodiagnosis of cat scratch disease: response to Bartonella henselae in children and a review of diagnostic methods.

In this study, sera from 116 children without clinical evidence of cat scratch disease (CSD) and sera from 19 children with CSD were investigated by two different immunofluorescent assays (test A and test B) to evaluate the seroprevalence of Bartonella henselae antibodies in this population. Antibodies against Bartonella henselae were found in noninfected children only in low titers: 13% and 3.5% of serum samples were positive by test A and test B, respectively. IgG titers as determined by test A ranged from 1:64 to 1:256, whereas test B did not yield titers >1:64. Of the 19 children with CSD, 7 (37%) and 5 (26%) had low antibody titers (1:64-1:256) on admission by test A and test B, respectively. In such cases, IgM antibodies against Bartonella henselae and/or a titer increase in the following weeks are required to prove suspected CSD. The results indicate that the seroprevalence of Bartonella henselae antibodies in children without evidence of CSD is low, and that the results may differ depending on the tests being used. Low antibody titers, however, were found not only in healthy children but also among patients with CSD, which could be indicative of the beginning or of the end of an illness. Currently, only few data are available concerning the seroprevalence of antibodies to Bartonella spp. among children. Although children are often affected by CSD, the specificity of most tests has been evaluated by investigating blood donors, who are usually adults. Several different serological tests are used for the diagnosis of CSD, including the immunofluorescence assay, the enzyme-linked immunosorbent assay, and Western blot (WB) analysis. The sensitivities of different IFAs range from 14 to 100%, depending on the antigen used, the cut-off chosen, and the test procedures. The current diagnostic value of different serological tests for diagnosis of CSD is reviewed.

Adolescent↗