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Query: UMLS:C0451641 (urolithiasis)
 3,973 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Hematuria in rabbits has been associated with uterine adenocarcinoma, uterine polyps, renal infarction, urolithiasis, cystitis, bladder polyps, and pyelonephritis. Three adult female New Zealand White rabbits (Oryctolagus cuniculus) developed apparent hematuria, as suggested by blood in their excreta pans. They had been immunized with antigen-adjuvant emulsions, but had uneventful clinical histories. Physical examination disclosed no abnormalities, and laboratory tests, including hematology, serum chemistries, urinalyses, urine cultures, ultrasonography, and intravenous pyelography disclosed mild anemia, hematuria, and proteinuria in two of the rabbits. Antibiotic therapy failed to alleviate clinical signs. Two rabbits were euthanized because of persistent urogenital bleeding and the third rabbit underwent exploratory laparotomy and ovariohysterectomy. Multiple endometrial venous aneurysms were present in the uteri of all rabbits and urogenital bleeding was attributed to episodic bleeding from these lesions. Varices and aneurysms of uterine subserosal and myometrial venous plexuses, but not of endometrial vessels in women have been reported. To our knowledge, endometrial venous aneurysms have not been reported in animals previously. Our findings indicate that the differential diagnoses for sporadic apparent hematuria in female rabbits should include endometrial aneurysms.
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PMID:Endometrial venous aneurysms in three New Zealand white rabbits. 143 95

We report a case of acquired idiopathic sideroblastic anemia associated with adenine phosphoribosyltransferase (APRT) deficiency. A 72-year-old male had been troubled with urolithiasis since his teens. In 1984, he was referred to us because of chronic renal failure and anemia. He was diagnosed as having sideroblastic anemia and required red cells transfusion regularly. In June 1989, he was admitted to our hospital because of cerebral infarction. Peripheral blood analysis showed pancytopenia. Bone marrow aspiration revealed hypercellularity with 36.2% erythroblasts, and 18.5% ringed sideroblasts of all nucleated cells. According to the FAB classification, a diagnosis of refractory anemia with ring sideroblasts was made. As his urinary stone consisted of 2, 8-dihydroxyadenine by analysis of infrared spectrum, genetic and enzymatic studies were performed. These studies indicated APRT deficiency. He died of pneumonia accompanied with progressive renal failure on August 9, 1989.
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PMID:[Sideroblastic anemia associated with adenine phosphoribosyltransferase deficiency]. 225 60

All 25 infants with primary hyperoxaluria type I (PH) so far reported in detail (including one own observation) presented in renal failure (RF) whereas urolithiasis has conspiciously been absent. Diagnosis of PH was often delayed due to nonspecific symptoms of RF: Vomiting, anemia and severe metabolic acidosis. However, demonstration of increased renal echodensity at ultrasound examination should allow early diagnosis. A flecked retina has been noted in several infants. In contrast, our patient had black retinal pigmentations which have only once been reported in PH. Prognosis in untreated patients has so far been poor: 67% died within the first 6 months of life. It is likely that early diagnosis and treatment will improve prognosis in the future.
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PMID:Primary hyperoxaluria: an important cause of renal failure in infancy. 399 67

Seven patients with chronic renal failure underwent intermittent hemodialysis for five to 37 months (111 patient-months on a twice-weekly basis) employing arteriovenous Teflon-Silastic cannulas and the modified two-layer Kiil hemodialyzer. A single-pass 37 degrees C. dialysate system has been used. One patient died of an indirectly related cause. All other patients have been successfully rehabilitated and now carry on normal activity of moderate sedentary type. Complications included recurring infection and clotting of arteriovenous cannulas. Hypertension and anemia were common complications requiring careful control. Peripheral neuropathy was noted in five of the seven patients but was of clinical significance in only one patient. Metastatic calcification, osteoporosis and urolithiasis also occurred in this patient. Peptic ulcers with hemorrhage developed in two patients. The degree of rehabilitation and psychological adjustment achieved by this group of patients strongly indicates the need for expansion of dialysis facilities and further research into the medical and economic aspects of dialysis.
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PMID:Intermittent hemodialysis in terminal chronic renal failure. 590 69

A case of gangrene of the penis, rarely seen at our University Hospital is reported. Urolithiasis, urinary tract infection, infected piles and anaemia were found to be associated with the condition. Because of rapid spread of the gangrene, partial amputation was required in this reported case.
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PMID:Gangrene of the penis. 775 62

A 9-year-old castrated male domestic shorthair cat with dysuria, anorexia, vomiting, and lethargy was admitted to the veterinary teaching hospital. A large, firm mass was palpable in the ventral cervical region. Hypercalcemia, azotemia, and nonregenerative anemia were evident on serum biochemical analysis and CBC, and multiple uroliths were detected by abdominal radiography. At necropsy, light microscopy of the ventral cervical mass revealed a parathyroid adenocarcinoma. Light microscopy of sections of the kidneys revealed multifocal, chronic, lymphocytic/plasmacytic, tubulointerstitial nephritis, as well as moderate multifocal acute tubular necrosis. On quantitative analysis, the uroliths were composed of calcium oxalate. Determination of serum calcium concentration is indicated in cats with calcium oxalate urolithiasis to aid in detection of primary hyperparathyroidism.
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PMID:Calcium oxalate urolithiasis in a cat with a functional parathyroid adenocarcinoma. 775 34

The two most common causes of hypercalcemia are malignancy and primary hyperparathyroidism (1 degree HPT). The radiographic presentations and the histological findings on bone biopsy are important for differential diagnosis of underlying diseases. We report a patient with hypercalcemia who presented unusual bone manifestations. A 43 y/o woman was admitted due to right femoral fracture. X-ray on the right tibia revealed several osteolytic cystic lesions with sclerotic rims. Blood biochemistry showed anemia, impaired renal function and hypercalcemia. Multiple osteolytic lesions on the skull and bilateral forearms were also noted. Malignancy, such as multiple myeloma or metastatic cancer was suspected. However, this was excluded because of the absence of M-component on serum protein electrophoresis and the negative finding of plasma cells or other malignant cell on bone biopsy examination. Abdominal sonography demonstrated bilateral medullary nephrocalcinosis. The final diagnosis of 1 degree HPT was made, based on the findings of classic pathological pictures (brown tumor) and the markedly elevated intact parathyroid hormone (1267.4 pg/ml) level. Sonography on the neck and 201Tl/99mTc parathyroid subtraction scan localized a left lower parathyroid tumor and fine needle aspiration confirmed the parathyroid origin. Diagnosis of 1 degree HPT could only be made from recurrent urolithiasis and X-ray picture of osteitis fibrosa cystica in the past. This patient presented the full-blown skeletal changes which are uncommonly seen nowadays. The characteristic sclerotic rims suggesting increased bone formation provides a further important clue for differential diagnosis of 1 degree HPT from other malignancies with osteolytic bone lesions.
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PMID:A patient of primary hyperparathyroidism with full-blown bone changes simulating malignancy. 979 3

Xanthogranulomatous pyelonephritis is an uncommon disease in children. We report of a 2-month-old girl with urinary tract infection and with a renal mass detected by ultrasound scan. The preoperative differential diagnoses were Wilms tumor, multicystic dysplastic kidney, renal abscess, and mesoplastic nephroma. The subsequent histopathological findings allowed the diagnosis of xanthogranulomatous pyelonephritis (XGP). Although XGP is rare at this age, it must be considered in the differential diagnosis of a child presenting with renal mass, either with or without associated urolithiasis, anemia, and elevated inflammatory markers. The long-standing mainstay of therapy for diffuse XGP has been nephrectomy. However, we report the successful preservation of renal mass with partial nephrectomy for diffuse XGP. The affected kidney grew normally and preserved residual function after the operation. Hence we strongly suggest parenchymal saving in pediatric cases of XGP to preserve renal function.
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PMID:Xanthogranulomatous pyelonephritis treated by partial nephrectomy. 1530 98

Renal failure remains a serious cause of mortality in Yemen. Our region has 1.25 million population and our hospital is the central hospital, which has a nephrology department and performs dialysis for the region. Between January 1998 and December 2002, we admitted 547 patients; including children, with acute renal failure (ARF) and chronic renal failure (CRF). CRF was observed in 400 patients, an incidence of 64 per million per year and a prevalence of 320 per million. ARF occurred in 147 persons with an incidence of 23.5 per million per year and a prevalence of 117.5 patients per million. Of all patients, 72% were adults (age range, 20-60 years) with a male preponderance. As a tropical country, malaria (27.9%), diarrhea (13.6%), and other infectious diseases were the main causes. Next most common were obstructive diseases causing CRF and ARF (26.8% and 12.9%, respectively), mainly urolithiasis, Schistosomiasis, and prostatic enlargement. However the cause of CRF in 57.5% of patients was unknown as most persons presented late with end-stage disease (64.7%), requiring immediate intervention. Other causes, such as hepatorenal syndrome, snake bite, diabetes mellitus, and hypertension, showed low occurrence rates. Patients presented to the hospital mostly in severe uremia and without a clear history of prior medications. The major findings were vomiting, acidosis, and hypertension with serum creatinine values ranging between 2.8-45 mg/dL (mean value, 13.4 mg/dL). Anemia was observed in 80.4% of CRF versus 62.6% of ARF patients. Hypertension prevalence was 65.5% among CRF patients, of whom 25% were in hypertensive crisis, whereas among ARF the prevalence was only 26.5%.
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PMID:Renal failure in Yemen. 1535 Apr 75

Idiopathic myelofibrosis is characterized by bone marrow fibrosis, anemia, leukoerythroblastosis, and extramedullary hematopoiesis in many organs. Renal abnormalities in idiopathic myelofibrosis have been rarely described in the literature and include extramedullary hematopoiesis in the pararenal or retroperitoneal areas resulting in obstructive uropathy and hemtopoietic cell infiltration in tubulointerstitial area and urolithiasis. These lead to azotemia or acute renal failure, which may respond well to radiotherapy and adjuvant chemotherapy. To our knowledge, there has been only one case report of nephrotic syndrome associated with glomerulonephritis in a myelofibrosis patient; however, no effective treatment was described. Herein, we report the case of a patient with idiopathic myelofibrosis who initially presented with hepatomegaly, anemia, and leukoerythroblastosis. A nephrotic syndrome developed 7 years after initial diagnosis. Renal biopsy disclosed the unique pathological finding of simultaneous mesangial proliferative glomerulonephritis, renal extramedullary hematopoiesis, and gouty nephropathy. Despite treatment with busulfan, proteinuria persisted that implied irreversible glomerular injury and a terminal prognosis. We focus on the unusual pathological finding and the association between nephrotic syndrome and idiopathic myelofibrosis.
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PMID:Idiopathic myelofibrosis associated with renal extramedullary hematopoiesis and nephrotic syndrome: case report. 1564 Dec 21


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