Cases reported "Tumor Virus Infections"

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1/655. Detection of human papillomavirus type 10 dna in eccrine syringofibroadenomatosis occurring in Clouston's syndrome.

    Syringofibroadenomatosis is often associated with an underlying condition such as diabetes mellitus or hidrotic ectodermal dysplasia. By reason of these associations, a reactive or hamartomatous cause is suspected. We report a case of a 71-year-old woman with Clouston's syndrome in whom progressive multiple palmoplantar syringofibroadenomas developed over a 10-year period. The syringofibroadenomas formed flat-topped papules simulating verruca plana; the widespread distribution and chronic progressive course resembled epidermodysplasia verruciformis. Contiguous with the syringofibroadenoma's characteristic epithelial-stromal proliferation were epidermal changes of verruca plana. Evidence of human papillomavirus (HPV) infection was verified by immunolabeling with antibodies to bovine papillomavirus type 1 and detection of HPV 10 viral dna by means of polymerase chain reaction. Rather than a hamartomatous process, these findings suggest that syringofibroadenomas occurring in the setting of Clouston's syndrome could represent an HPV-induced epithelial proliferation. ( info)

2/655. central nervous system T-cell lymphoproliferative disorder in a patient with chronic active Epstein-Barr virus infection.

    PURPOSE: central nervous system (CNS)-T cell lymphoproliferative disorder (T-LPD) developing during the course of chronic active Epstein-Barr virus (CAEBV) infection is reported. patients AND methods: CAEBV was diagnosed in a 14-month-old boy with fever, cytopenia, hepatosplenomegaly, and abnormal high titers of anti-Epstein-Barr virus (EBV) antibodies. At 8 years of age, he had a splenectomy because of progressive disease. RESULTS: After 27 months of clinical remission, muscle weakness and paresthesia developed. magnetic resonance imaging of his brain showed spotty T2 prolongation in left parietal, bilateral frontal, and temporal white matter with meningeal enhancement. brain biopsy revealed the cerebral infiltration of CD3 , CD4 , CD8-, CD45RO , CD56-, and EBV-encoded rna 1 cells. CONCLUSIONS: The CNS involvement of EBV-associated T-LPD is a rare but serious complication in CAEBV without known underlying immunodeficiency. ( info)

3/655. lymphomatoid granulomatosis following autologous stem cell transplantation.

    lymphomatoid granulomatosis (LYG) is a rare angio-destructive lymphoproliferative disorder (LPD) of uncertain etiology, with prominent pulmonary involvement. Recent studies indicate that LYG is an Epstein-Barr virus (EBV)-associated B cell LPD with large numbers of background reactive T lymphocytes (T cell-rich B cell lymphoma). Although the disease frequently, but not exclusively, occurs in various immunodeficiency states, it has not been reported in association with the transient immunosuppression following autologous bone marrow/peripheral stem cell transplantation (ABM/PSCT). We describe a patient who developed lymphomatoid granulomatosis of the lung approximately 2 weeks after high-dose chemotherapy and autologous peripheral stem cell transplantation for multiple myeloma. Although molecular studies showed no evidence of EBV genome in the biopsy material, the serologic profile with high IgM titers was suggestive of primary EBV infection. Complete radiologic remission occurred following reconstitution of the patient's immune response after a 2-week course of ganciclovir treatment. Despite the apparently low frequency of LPD (both LYG and EBV-associated post-transplant lymphoma) in the ABMT setting, we believe that it should be considered in the differential diagnosis of patients whose clinical course following ABMT is complicated by fevers, in the absence of an identifiable infectious process. ( info)

4/655. Primary ocular Epstein-Barr virus-associated non-Hodgkin's lymphoma in a patient with AIDS: a clinicopathologic report.

    OBJECTIVE: To report an unusual case of chronic multifocal chorioretinitis with vitritis in a patient with acquired immunodeficiency syndrome (AIDS) that was resistant to antiviral and antitoxoplasmic medication and required a retinal biopsy for definitive diagnosis. methods: Vitreous biopsy, pars plana vitrectomy, and retinal biopsy were performed. The vitreous biopsy material was sent for bacterial, fungal, and viral culture, and the vitreous cassette was sent for cytology. The retinal biopsy material was divided and sent for polymerase chain reaction testing for toxoplasmosis and virology and pathologic tissue analysis. RESULTS: Vitreous cytology showed a mixed population of lymphocytes and histiocytes, but all other microbiologic and virologic studies were negative. Tissue analysis revealed an infiltrate of atypical mononuclear cells extending from the inner limiting membrane through the outer plexiform layer characteristic of a B cell, non-Hodgkin's lymphoma of the central nervous system (NHL-CNS). in situ hybridization for the Epstein-Barr virus (EBV) was positive. An extensive systemic evaluation did not show evidence of extraocular tumor. CONCLUSION: Although rare, primary ocular NHL-CNS can be seen in patients with AIDS, and its clinical presentation often closely resembles other disorders. To our knowledge, this case represents the first ocular NHL in which EBV is shown to be associated. ( info)

5/655. Oral wart associated with human papillomavirus type 2.

    More than 100 human papillomavirus (HPV) types have been identified to date. Of these, 24 types have been described as being associated with oral lesions. HPV-2 has been frequently associated with skin lesions, but the reports of oral lesions as features of mucosal infection are limited. A biopsy specimen of an oral wart on the right palate was taken from a 48-year-old man and examined for the presence of HPV The sections showed papillary growth of the epithelium with hyperkeratosis and parakeratosis, and koilocytotic changes of the cells located in the upper layers of the oral squamous cell epithelium. These histological features corresponded well to those of verruca vulgaris on the skin. Immunohistochemically, papillomavirus genus-specific capsid antigen was detected in most of the koilocytotic cells. In addition, Southern blot hybridization analysis revealed that the lesion harbored HPV-2 dna. in situ hybridization with a biotinylated HPV-2 dna probe clearly demonstrated viral dna in the nuclei of squamous cells, which were located in a deeper layer of the epithelium than viral antigen-positive cells. ( info)

6/655. Prominent hyperkeratotic plantar and palmar warts.

    We report the case of a 28-year-old man who had prominent hyperkeratotic plantar and palmar warts, and flat warts on his face and chest. By dna hybridization, human papillomavirus 1 and/or 2, and 3 dna were detected from the tissues of these skin lesions. Results of laboratory investigations revealed leukopenia, eosinophilia, anti-HBs antigen and anti-hepatitis c virus antibody, and decrease in the OKT4/OKT8 ratio. He had no abnormality in cellular immunity. He was treated with multiple modalities, but was successfully treated with electrocautery to the plantar and palmar warts, and cryotherapy with liquid nitrogen to the flat warts. Nine years after the initial treatment, almost no recurrence was recognized. ( info)

7/655. Immunohistochemical detection of jc virus in nontumorous renal tissue of a patient with renal cancer but without progressive multifocal leukoencephalopathy.

    We performed immunohistochemical staining on the nontumorous renal tissue of 45 patients with renal cancer but without progressive multifocal encephalopathy using JCV-specific antibody. For one patient we found positive staining of the nuclei of the renal collecting ducts. Immunoelectron microscopic examination of the positive cell nuclei revealed electron-dense polyomavirus-like particles. ( info)

8/655. Epstein-Barr virus related hemophagocytic syndrome in a T-cell rich B-cell lymphoma.

    We report the case of a 30-year-old woman who presented with an EBV related hemophagocytic syndrome. After a few months she developed a T-cell rich B-cell non-Hodgkin's lymphoma with liver involvement. Serological data demonstrated a reactivation of the EBV infection. Tumor progression with liver involvement occurred during treatment with conventional chemotherapy. Tumor reduction and disappearance of all masses was seen after starting high-dose sequential chemotherapy, followed by an autologous peripheral blood progenitor transplantation LMP-1 could be amplified in the tumor material by PCR technology, but no LMP-1 expression could be found in the few malignant B-cells with Reed-Sternberg morphology. sequence analysis of the carboxy terminal of the LMP-1 region revealed the naturally occurring 30 bp deletion variant of the LMP-1 with multiple point mutations within the NF kb region. Since LMP-1 was not expressed in the malignant tumor cells, no evidence could be found, that EBV participated in the tumorigenesis of this case. ( info)

9/655. role of human papillomavirus typing in diagnosis and clinical decision making for a giant verrucous genital lesion.

    A 60-year-old man presented with a 12.0 x 10.0-cm exophytic, verrucous genital plaque. Multiple biopsy specimens were evaluated by standard histologic analysis and polymerase chain reaction assays for human papillomavirus (HPV) deoxyribonucleic acid. All biopsy specimens showed histopathologic changes consistent with giant condyloma of Buschke-Lowenstein (GCBL), were uniformly positive for HPV 6/11, and showed a weaker signal for HPV 16. Published reports suggest that the presence of HPV may be useful in differentiating GCBL from verrucous carcinoma (VC), but absence of "high-risk" HPV types in GCBL cannot exclude focally invasive squamous cell carcinoma. Screening for HPV may be a helpful adjunct in differentiating GCBL from VC, but histopathologic criteria for malignancy should take precedence over HPV typing when determining management. ( info)

10/655. HPV 18-induced pigmented bowenoid papulosis of the neck.

    We describe the case of a 53-year-old man in whom pigmented bowenoid papulosis developed on the skin of the neck. By polymerase chain reaction with general primers for genital human papillomaviruses (HPV) and subsequent restriction enzyme cleavage we could demonstrate HPV 18-related dna in two biopsy specimens of the pigmented papules. To our knowledge, this report represents the first case of HPV 18-induced extragenital bowenoid papulosis of the neck. ( info)
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