1/4. Acute phlegmonous jejunitis and viridans streptococcal peritonitis associated with bronchial carcinoma.A 61-y-old man developed acute non-specific phlegmonous jejunitis associated with relatively mild diffuse peritonitis. Bacteriological cultures of the abundant peritoneal fluid resulted in only growth of viridans streptococci (streptococcus mitis and S. salivarius). Antibiotic treatment had a favourable effect, but a hitherto unknown bronchial cancer led to his death 5 months later. It is assumed that this peculiar case was the result of the immunosuppressive effect related to the malignant neoplasm (opportunistic infection).- - - - - - - - - - ranking = 1keywords = opportunistic infection (Clic here for more details about this article) |
2/4. sepsis in a renal transplant recipient due to Citrobacter braakii.cellulitis is usually caused by organisms such as beta-hemolytic streptococci and staphylococcus aureus. Citrobacter are gram-negative bacilli that can cause opportunistic infections in immunocompromised hosts. They are rarely implicated in skin or soft tissue infections. The genus Citrobacter has been respeciated according to genetic relatedness. Citrobacter braakii refers to the genomospecies 6 of the citrobacter freundii complex. There are no detailed studies of infections caused by the newly formed specific genetic species. We report a case of C. braakii infection in a renal transplant patient receiving immunosuppressive therapy. The patient's lower extremity cellulitis did not respond to conventional antibiotic therapy. blood cultures grew C. braakii. Sensitivity studies and treatment with appropriate antibiotics resulted in prompt recovery. Immunosuppressive therapy in renal transplant recipients predisposes to infection by unusual pathogens, and this should be suspected when lack of a clinical response to conventional antibiotics is observed. We believe this is the first reported case of C. braakii cellulitis and bacteremia in a renal transplant recipient.- - - - - - - - - - ranking = 1keywords = opportunistic infection (Clic here for more details about this article) |
3/4. Fungal osteomyelitis of the foot. A report of an unusual case.mucormycosis is an opportunistic infection that very occasionally causes osteomyelitis and avascular necrosis of bone. The infection may prove fatal if not diagnosed promptly. If early treatment is instituted the prognosis is good.- - - - - - - - - - ranking = 1keywords = opportunistic infection (Clic here for more details about this article) |
4/4. Pulmonary sarcoidosis and chronic cutaneous atypical mycobacter ulcer.This interesting case of pulmonary sarcoidosis and mycobacterium ulcerans ulcers raises many issues: 1. Our paucity of knowledge of deficient immune status in individuals; the multifarious presentation as recognisable ill health, its early detection, treatment and its prevention. In this present case the management of the immune status of the patient has not yet been fully addressed. The relationship between his pulmonary sarcoidosis as being an 'immune' response to the mycobacterium ulcerans remains speculative; for example, did this patient have the Mycobacterium infection before he was diagnosed as having sarcoidosis? There is no evidence of this. With the history of repeated cellulitis associated with his business trips to asia and the middle east, the likelihood seems speculative--as would infection with mycobacterium ulcerans contracted from swimming in pools and rivers. 2. As sarcoidosis is thought to have an association with mycobacterium tuberculosis it is tempting to suggest that as, in this case, the mycobacterium ulcerans is the caus-ative agent for his sarcoidosis. Additionally, should we be looking for sarcoidosis in every other case of mycobacterium ulcerans infection? Other cases of mycobacterium ulcerans could be assessed. 3. It is suggested that corticosteroids do pave the way for opportunistic infection as in this case. How often does this occur in 'usual practice' where patients are exposed to corticosteroids? Further comments are invited. 4. The question of sterility techniques in the home (daily dressings), the surgery, and at work as a food handler, is noted as a matter of concern. 5. The implications of the problem having any work-related association is also noted in passing.- - - - - - - - - - ranking = 1keywords = opportunistic infection (Clic here for more details about this article) |