1/17. Diffuse abdominal angiomatosis.We present a rare case of diffuse abdominal angiomatosis occurring in a 19-year-old male; particular attention is paid to the MR imaging features of this disease process.- - - - - - - - - - ranking = 1keywords = aid (Clic here for more details about this article) |
2/17. Bacillary angiomatosis presenting as a soft-tissue tumor without skin involvement.A patient with human immunodeficiency virus infection presented with a soft-tissue mass which histologically and clinically mimicked an angiosarcoma. Ultrastructural study, however, revealed bacteria identical to those seen in cutaneous bacillary angiomatosis, but the patient had no skin lesions. To our knowledge, this represents the first report of soft tissue involvement by bacillary angiomatosis without the presence of skin lesions.- - - - - - - - - - ranking = 18.869995086764keywords = immunodeficiency (Clic here for more details about this article) |
3/17. Identification and successful treatment of congenital microfistulas with the aid of directional Doppler.Hitherto unidentifiable and therefore untreatable congenital microfistulas were detected with the aid of continuous-wave directional Doppler and a fine-beam pencil probe. The microfistulas formed part of the Klippel-Trenaunay (K-T) syndrome. The management of one case is reported in detail and in three others salient features are touched upon. Careful clinical and radiological examination failed to demonstrate any arteriovenous microfistulas. When Doppler ultrasound scanning was carried out, two discrete fistulas were discovered. Their extent and direction were mapped out accurately. Incisions were made directly over the markings displaying a pulsating capillary tuft of vessels. Further dissection exposed a feeding arteriole which was less than 1 mm. in diameter. Excision of the vascular malformations resulted in the cure of the patient. In another patient with the K-T syndrome in whom a cutaneous hemangioma involved the whole lower limb, in spite of a thorough and systematic search with a Doppler, no microfistulas could be demonstrated. It is suggested that all patients suffering from the K-T syndrome should be examined by Doppler ultrasound in the hope that microfistulas which elude radiodiagnostic techniques might be detected and treated surgically.- - - - - - - - - - ranking = 5keywords = aid (Clic here for more details about this article) |
4/17. association of Epstein-Barr virus in epithelioid angiomatosis of AIDS patients.Epithelioid angiomatosis, hemangioma-like vascular proliferations recently described in AIDS patients, has been associated with the cat scratch disease bacillus. Other vascular lesions present in AIDS patients, in particular Kaposi's sarcoma, have been associated with cytomegalovirus (CMV). We investigated the possibility of viral association with epithelioid angiomatosis by analyzing two such lesions, as well as unrelated concurrent skin lesions, for the presence of viral genetic information. Colorimetric in-situ hybridization was performed on formalin-fixed, paraffin-embedded sections using cloned biotinylated probes for CMV, herpes simplex virus, human immunodeficiency virus, and Epstein-Barr virus (EBV). The only virus demonstrated was EBV, and this was only in the two epithelioid angiomatosis lesions. Hybridization signal for EBV was present in the nuclei of endothelial cells and occasional histiocytes. Bacilli were demonstrated within one of the lesions by silver stain. This is the first report associating EBV with this entity, and the first-time demonstration of EBV genetic information in endothelial cells. Our data suggest that these vascular lesions may represent a nonspecific response to infection by many different agents, and that EBV may be involved in the pathogenesis of some of these lesions.- - - - - - - - - - ranking = 18.869995086764keywords = immunodeficiency (Clic here for more details about this article) |
5/17. Epithelioid angiomatosis in patients with AIDS. Report of seven cases and review of the literature.Seven cases of a distinctive vascular proliferation in patients with acquired immunodeficiency syndrome are discussed and compared with other reported cases. All cases share clinical and pathologic manifestations that can be recognized early. Warthin-Starry-positive bacilli within some of the lesions and their response to erythromycin may indicate that the proliferation is associated with an infectious agent, possibly the bacillus that causes cat-scratch disease.- - - - - - - - - - ranking = 197.66837646293keywords = immunodeficiency syndrome, immunodeficiency (Clic here for more details about this article) |
6/17. The agent of bacillary angiomatosis. An approach to the identification of uncultured pathogens.BACKGROUND. Bacillary angiomatosis is an infectious disease causing proliferation of small blood vessels in the skin and visceral organs of patients with human immunodeficiency virus infection and other immunocompromised hosts. The agent is often visualized in tissue sections of lesions with Warthin-Starry staining, but the bacillus has not been successfully cultured or identified. This bacillus may also cause cat scratch disease. methods. In attempting to identify this organism, we used the polymerase chain reaction. We used oligonucleotide primers complementary to the 16S ribosomal rna genes of eubacteria to amplify 16S ribosomal gene fragments directly from tissue samples of bacillary angiomatosis. The dna sequence of these fragments was determined and analyzed for phylogenetic relatedness to other known organisms. Normal tissues were studied in parallel. RESULTS. Tissue from three unrelated patients with bacillary angiomatosis yielded a unique 16S gene sequence. A sequence obtained from a fourth patient with bacillary angiomatosis differed from the sequence found in the other three patients at only 4 of 241 base positions. No related 16S gene fragment was detected in the normal tissues. These 16S sequences associated with bacillary angiomatosis belong to a previously uncharacterized microorganism, most closely related to Rochalimaea quintana. CONCLUSIONS. The cause of bacillary angiomatosis is a previously uncharacterized rickettsia-like organism, closely related to R. quintana. This method for the identification of an uncultured pathogen may be applicable to other infectious diseases of unknown cause.- - - - - - - - - - ranking = 18.869995086764keywords = immunodeficiency (Clic here for more details about this article) |
7/17. Epithelioid angiomatosis in the acquired immunodeficiency syndrome: morphology and differential diagnosis.A rare vascular proliferation found as a skin lesion in patients suffering from the acquired immunodeficiency syndrome and sometimes referred to as epithelioid angiomatosis is believed to be a manifestation of infection by the cat scratch bacillus or a related organism. We describe the histological findings from eight lesions seen in two cases. In all cases the diagnosis could be confirmed by demonstration within the lesions of groups of gram-negative rod-shaped organisms staining positively with the Warthin-Starry stain. This condition needs to be distinguished from a variety of reactive and neoplastic vascular proliferations.- - - - - - - - - - ranking = 988.34188231464keywords = immunodeficiency syndrome, immunodeficiency (Clic here for more details about this article) |
8/17. Bacillary epithelioid angiomatosis occurring in an immunocompetent individual.Within the last several years, a newly characterized condition known as bacillary epithelioid angiomatosis (BEA) has been described in a number of patients with human immunodeficiency virus (hiv) infection. All cases heretofore described have been seen in patients with the hiv infection. We recently evaluated a 37-year-old healthy man who had a localized form of BEA confirmed by biopsy, special strains, electron microscopy, and culture. We conclude that BEA as previously defined may occur in healthy, non-hiv-infected individuals.- - - - - - - - - - ranking = 18.869995086764keywords = immunodeficiency (Clic here for more details about this article) |
9/17. Visceral bacillary epithelioid angiomatosis: possible manifestations of disseminated cat scratch disease in the immunocompromised host: a report of two cases.Opportunistic infection with the causative agent of cat scratch disease may be responsible for an unusual vascular proliferative lesion, referred to as bacillary epithelioid angiomatosis, previously described only in human immunodeficiency virus (hiv)-infected patients. We present a case of an hiv-infected patient with bacillary epithelioid angiomatosis involving the liver and bone marrow causing progressive hepatic failure. We also report a case of a cardiac transplant recipient with hepatic and splenic bacillary epithelioid angiomatosis manifesting as a fever of unknown origin, a previously unreported event in a non-hiv-infected patient. These cases represent the first documentation of bacillary epithelioid angiomatosis with visualization of cat scratch-like organisms involving internal organs.- - - - - - - - - - ranking = 18.869995086764keywords = immunodeficiency (Clic here for more details about this article) |
10/17. infection-associated vascular lesions in acquired immunodeficiency syndrome patients.Several reports have recently appeared in the literature describing "unique" non-neoplastic vascular lesions in patients with the acquired immunodeficiency syndrome (AIDS). These lesions may be mistaken clinically and histologically for Kaposi's sarcoma. The terms epithelioid angiomatosis, epithelioid or histiocytoid hemangioma, and pyogenic granuloma have all been used to describe a similar entity in which cat scratch disease bacillus (CSDB) was subsequently identified. Lesions closely resembling this entity occur in patients with bartonellosis. We report a case of a cutaneous vascular lesion on the hand of an AIDS patient in which cytomegalovirus (CMV) and organisms consistent with CSDB were both found. Simultaneous infections with CMV and CSDB have not been previously described. The presence of these organisms in and around endothelial cells may provide the common stimulus for the formation of these reactive vascular proliferations.- - - - - - - - - - ranking = 988.34188231464keywords = immunodeficiency syndrome, immunodeficiency (Clic here for more details about this article) |
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