1/30. Pulmonary rhizopus infection in a diabetic renal transplant recipient.Infectious complications after renal transplantation remain a major cause of morbidity and mortality. mucormycosis is a rare infection in renal transplant recipients; however, mortality is exceedingly high. risk factors predisposing to this disease include prolonged neutropenia, diabetes, and patients who are immunosuppressed (Singh N, Gayowski T, Singh J, Yu LV. Invasive gastrointestinal zygomycosis in a liver transplant recipient: case report and review of zygomycosis in solid-organ transplant recipients, Clin Infect Dis 1995: 20: 617). life-threatening infections can occur, as this fungus has the propensity to invade blood vessel endothelium, resulting in hematological dissemination. We report a case of cavitary rhizopus lung infection, 2 months after renal transplantation, where the patient was treated successfully with amphotericin b and surgical resection of the lesions with preservation of his allograft function. In this era of intensified immunosuppression, we may see an increased incidence of mucormycosis in transplant population. Invasive diagnostic work-up is mandatory in case of suspicion; amphotericin b and, in selected cases, surgical resection are the mainstays of therapy.- - - - - - - - - - ranking = 1keywords = organ (Clic here for more details about this article) |
2/30. Candida fasciitis following renal transplantation.BACKGROUND: We describe a rare case of necrotizing fasciitis involving candida albicans, an organism that has been reported to have a minimal potential for invasive soft tissue infection. In this case, immunosuppression, chronic renal failure, and a history of diabetes mellitus were predisposing factors. methods: The medical record and histopathologic material were examined. The clinical literature was reviewed for previous cases of C albicans necrotizing fasciitis. RESULTS: A review of the literature showed that in solid organ transplant recipients, localized fungal soft tissue infection is infrequent, with only 35 cases reported between 1974 and 1992. Necrotizing fasciitis caused by C albicans is extremely rare in the modern era of solid organ transplantation. CONCLUSIONS: The management of transplant patients at risk for invasive fungal infection warrants a high index of suspicion for fungal necrotizing fasciitis in the setting of wound infection and merits a thorough investigation for atypical pathogens.- - - - - - - - - - ranking = 3keywords = organ (Clic here for more details about this article) |
3/30. Combined medical surgical therapy for pulmonary mucormycosis in a diabetic renal allograft recipient.mucormycosis is a rare opportunistic infection that complicates chronic debilitating diseases and immunosuppressed solid-organ transplant recipients. We present a case of life-threatening pulmonary mucormycosis in a diabetic renal allograft recipient who survived with reasonable renal function. Early recognition of this entity and prompt use of bronchoalveolar lavage (BAL) are critical to the outcome. Antifungal therapy combined with early surgical excision of infected, necrotic tissue appears to be the preferred course of action. Judicious withholding of immunosuppressants until fungemia cleared did not jeopardize allograft function.- - - - - - - - - - ranking = 1keywords = organ (Clic here for more details about this article) |
4/30. Emphysematous gastritis in a hemodialysis patient.Emphysematous gastritis is a condition characterized by gas within the wall of the stomach and associated systemic toxicity. We report a case of emphysematous gastritis in a 43-year-old diabetic patient receiving hemodialysis and review 41 cases published since 1889. The most common predisposing factors included ingestion of corrosive substances, alcohol abuse, abdominal surgery, diabetes, and immunosuppression. diagnosis is based on clinical presentation of acute abdomen with associated features of systemic toxicity. The most commonly involved organisms were streptococci (nine cases), escherichia coli (nine cases), enterobacter species (six cases), clostridium welchii (four cases), and staphylococcus aureus (four cases). Computed tomography (CT) is the diagnostic procedure of choice. The mortality rate was 61% (25 of 41 patients). Gastric contractures after recovery were noted in 10% (4 of 41 patients). Antimicrobial therapy with antibiotics covering gram-negative organisms and anaerobes, and surgery in appropriate cases may enhance survival.- - - - - - - - - - ranking = 2keywords = organ (Clic here for more details about this article) |
5/30. Successful treatment of necrotizing fasciitis associated with diabetic nephropathy.A 50-year-old woman with a 15-year history of type 2 diabetes mellitus was admitted to our hospital due to high fever and a skin lesion with severe pain, swelling and a sensation of heat in the right thigh. Laboratory examination showed elevated c-reactive protein (CRP), thrombocytopenia, nephrotic syndrome and renal dysfunction. Her blood glucose level had been well controlled. streptococcus agalactiae was detected in both the skin lesion and blood culture, and pathological examination revealed neutrophil infiltration in the fascia and muscle layer. The patient was diagnosed with necrotizing fasciitis, septic shock and disseminated intravascular coagulation. A combination therapy of antibiotics and surgical debridement resulted in the improvement of symptoms as supported by laboratory findings, and the skin lesion also showed improvement. Although group A streptococcus is well known to be implicated in the pathogenesis of necrotizing fasciitis, only S. agalactiae, belonging to group B streptococcus, was isolated from the tissue and blood cultures in this case. Although this organism is not virulent and rarely causes a necrotizing fasciitis, both the superficial fascial layer and underlying muscle were affected in this case. There have been only a few reports of necrotizing fasciitis due to S. agalactiae in patients with diabetes mellitus. Although the blood glucose level was well controlled in our patient, this disease might be caused by other factors, including diminished sense of touch and pain, abnormality of microcirculation and hypogammaglobulinemia due to nephrotic syndrome.- - - - - - - - - - ranking = 1keywords = organ (Clic here for more details about this article) |
6/30. Treatment of advanced rectal cancer in a patient after combined pancreas-kidney transplantation.BACKGROUND: organ transplantation is a standard procedure today. Due to immunosuppressive drugs and increasing survival after organ transplantation, patients with transplanted organs carry an increased risk of developing malignant tumours. Accordingly, more patients with malignant tumours after transplantation will be faced by general or oncology surgeons. We report the case of a 48-year-old patient with advanced rectal cancer 6.5 years after pancreas-kidney-transplantation for type I diabetes. METHOD: The patient was treated with neo-adjuvant radio-chemotherapy, followed by low anterior rectal resection with total mesorectal excision. Consecutively, a solitary hepatic metastasis, a solitary pulmonary metastasis and a chest wall metastasis were resected over the course of 13 months. RESULT: The patient eventually died of metastasized cancer 32 months after therapy had been initiated, his organ grafts functioning well until his death. CONCLUSION: Our case report provides evidence that transplantation patients should receive standard oncology treatment, including neo-adjuvant treatment, so long as their general condition and organ graft functions allow us to do so, although a higher degree of morbidity might be encountered.- - - - - - - - - - ranking = 4keywords = organ (Clic here for more details about this article) |
7/30. Diabetic muscular infarction: emphasis on pathogenesis.Diabetic muscular infarction is a rare complication of diabetes. It usually occurs in those with target organ involvement of diabetes, generally affecting one or a group of muscles of the thigh, and can recur. The pathogenesis of the disease is still not clear. Here we report an unusual case of extensive muscle involvement of both thighs and calves, with special emphasis on pathogenesis.- - - - - - - - - - ranking = 1keywords = organ (Clic here for more details about this article) |
8/30. Nanobacteria-caused mitral valve calciphylaxis in a man with diabetic renal failure.We have found that nanobacteria, recently discovered Gram-negative atypical bacteria, can cause local calciphylaxis on the mitral valve in a setting of high-calcium X phosphorous product in the blood. We present the case of a 33-year-old man with diabetic renal failure on continuous ambulatory peritoneal dialysis who died as a result of multiple brain infarcts due to embolizations from mitral valve vegetations. Systemic calciphylaxis was not present. Spectrometric analysis of the mitral valve vegetations showed that they were composed of calcium phosphate, carbonate apatite form, and fibrin. The electron microscopy of the thrombotic vegetation demonstrated nanobacterium as a nidus for carbonate apatite formation. Investigation for the presence of nanobacteria in the multiple organs involved in systemic calciphylaxis may be of help in elucidating the pathogenesis of this frequently fatal disorder.- - - - - - - - - - ranking = 1keywords = organ (Clic here for more details about this article) |
9/30. Conversion to sirolimus: a successful treatment for posttransplantation Kaposi's sarcoma.The increased incidence of Kaposi's sarcoma (KS) in organ transplantation has been related to the KS herpesvirus and the permissive effect of immunosuppressive therapy. calcineurin inhibitors are the cornerstone of immunosuppression in organ transplantation, although they could promote tumor progression. In contrast, sirolimus, a new immunosuppressive agent, exhibits potent antitumor activity. We postulated that conversion from cyclosporine to sirolimus in patients with KS could favor regression of KS lesions without increasing the risk of graft rejection. Two renal transplant recipients with KS underwent conversion from cyclosporine to sirolimus. Both patients showed complete regression of KS lesions and excellent clinical and functional results. sirolimus offers a new and promising approach to the management of posttransplantation KS and probably to other types of malignancies in organ transplant recipients.- - - - - - - - - - ranking = 3keywords = organ (Clic here for more details about this article) |
10/30. Complete reversal of the nephrotic syndrome after preemptive pancreas-kidney transplantation: a case report.BACKGROUND: nephrotic syndrome due to diabetic nephropathy is presently considered an indication for pancreas-kidney transplantation even in the absence of severe renal failure. Reversal of the nephrotic syndrome has been reported, but the mechanisms of this effect are unclear. AIM: To describe the renal morphofunctional pattern and the pattern of proteinuria before and after preemptive pancreas-kidney transplantation. methods: methods included quantitative and qualitative assessment of proteinuria as well as renal ultrasound and scintiscan. CASE REPORT: A 42-year-old woman with type 1 diabetes since age 24 had widespread end-organ damage. Renal biopsy (2001) showed a mainly nodular pattern of diabetic nephropathy. Following referral (1999), her serum creatinine ranged from 1.6 to 2.2 mg/dL, with nephrotic range proteinuria (glomerular nonselective, tubular complete). Renal scintiscan revealed bilateral, symmetric, well-perfused kidneys. The functional data before pancreas-kidney graft (February 2003) were: serum creatinine 1.6 mg/dL, creatinine clearance 58 mL/min, serum albumin 2.6 g/dL, proteinuria 9.1 g/d. At hospital discharge (March 2003), the creatinine was 1.2 mg/dL, the creatinine clearance 97 mL/min, the proteinuria 0.676 g/d. Two months later, the creatinine was 1.2 mg/dL and proteinuria 0.421 g/d. A renal scintiscan demonstrated the functional prevalence of the grafted kidney (77% of total function), with vital, almost completely excluded native kidneys (functional contribution, 11.5% each). proteinuria, ranging from 0.3 to 0.6 g/d, showed a physiological pattern. CONCLUSIONS: Functional exclusion of the native kidneys by renal scintiscan gives morphological support to reversal of the nephrotic syndrome.- - - - - - - - - - ranking = 1keywords = organ (Clic here for more details about this article) |
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