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Query: UMLS:C0034186 (pyelonephritis)
 6,144 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Myelolipoma most commonly arises in the adrenal gland. Extra-adrenal myelolipomas are rare; to our knowledge, approximately 37 previous cases have been reported. We report a myelolipoma presenting as a localized mass in perirenal adipose tissue juxtaposed to the renal hilum in a 65-year-old Caucasian man who presented with back pain, weight loss, hematuria, and flank pain. The most likely diagnostic considerations were pyelonephritis or primary renal malignancy. However, histology revealed mainly mature adipose tissue along with multiple scattered islands of hematopoietic precursor cells. Representation of all the three hematopoietic cell lineages (granulocytic, erythroid, and megakaryocytic) was present. Perirenal masses such as morphologically identified myelolipomas are rarely, if ever, considered in differential diagnosis. The purpose of this report is to elicit consideration of extra-adrenal myelolipoma when formulating a differential diagnosis for perirenal and retroperitoneal tumors. Although primary and secondary malignant retroperitoneal tumors are much more common and aggressive neoplasms, establishing the correct diagnosis has important therapeutic and prognostic implications.
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PMID:Extra-adrenal myelolipoma in the renal hilum: a case report and review of the literature. 1683 Oct 34

Aortic dissection is a life-threatening illness requiring early diagnosis and treatment. Uncommon early presentations mimicking various illnesses can delay diagnosis. This case study describes a 44-year-old woman with type B aortic dissection initially presenting as acute pyelonephritis (APN). Early clinical manifestations were sudden onset of left flank pain, fever, hematuria and pyuria, and following admission, severe abdominal pain, nausea, vomiting, reduced urine output and renal function deterioration. Abdominal computed tomography showed type B aortic dissection complicated with a small bowel infarct, ischemic ascending colon and left renal infarct. Emergency surgical interventions of small bowel resection, ileoduodenostomy and cholecystectomy were performed; a second laparotomy was subsequently performed for anastomosis leakage. The patient died due to septic shock with multiorgan failure. Aortic dissection initially mimicking APN is rare. Accurate early diagnosis of aortic dissection with indeterminate presentation is crucial. Early surgical intervention for visceral organ ischemia is important to preventing morbidity and mortality.
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PMID:Type B aortic dissection with early presentation mimicking acute pyelonephritis. 1687 95

The diagnosis of acute pyelonephritis in adults is predominantly made by a combination of typical clinical features of flank pain, high temperature and dysuria combined with urinalysis findings of bacteruria and pyuria. Imaging is generally reserved for patients who have atypical presenting features or in those who fail to respond to conventional therapy. In addition, early imaging may be useful in diabetics or immunocompromised patients. In such patients, imaging may not only aid in making the diagnosis of acute pyelonephritis, but more importantly, it may help identify complications such as abscess formation. In this pictorial review, we discuss the role of modern imaging in acute pyelonephritis and its complications. We discuss the growing role of cross-sectional imaging with computed tomography (CT) and novel magnetic resonance imaging (MRI) techniques that may be used to demonstrate both typical as well as unusual manifestations of acute pyelonephritis and its complications. In addition, conditions such as emphysematous and fungal pyelonephritis are discussed.
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PMID:Imaging of acute pyelonephritis in the adult. 1693 2

Bilateral emphysematous pyelonephritis is a rare life-threatening condition affecting almost exclusively patients with diabetes mellitus. Symptoms, which include fever, chills, abdominal and flank pain, nausea, vomiting, dysuria and pyuria, usually mimic those of classic pyelonephritis, and thus clinical suspicion for this urgent condition should be raised in every diabetic patient with similar presentation. Computed tomography (CT) remains the gold standard for the diagnosis demonstrating gas in the renal parenchyma, collecting system or perinephric tissue. Treatment, which should be aggressive, is classically surgical, and early nephrectomy is recommended. Percutaneous drainage associated with medical treatment might be an alternative. Successful exclusively medical treatment has been described but is infrequent and is reserved as an alternative for patients in whom surgical intervention is contraindicated. We report a case of bilateral emphysematous pyelonephritis in an 82-year-old female diabetic patient who presented with symptoms of typical pyelonephritis. Diagnosis was confirmed by CT, and Escherichia coli was identified as the causative factor. The patient was successfully treated medically with intravenous administration of cefepime and amikacin for 14 days and recovered fully. The therapeutical options for this severe but rare condition are discussed.
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PMID:Nonsurgical treatment of bilateral emphysematous pyelonephritis in a diabetic patient. 1713 98

Urothelial carcinoma is characterized by multiple, multifocal recurrences throughout the genitourinary tract; approximately 3% of patients treated by radical cystectomy (RC) for invasive transitional cell carcinoma (TCC) of the bladder will subsequently develop a subsequent TCC in the upper urinary tract (UUT) urothelium. Metachronous upper UUT tumours (mUUT-TCC) typically occur as a late oncological event (>3 years after RC). The vast majority of mUUT-TCCs are detected only after the progression to tumour-related symptoms, e.g. haematuria, flank pain or pyelonephritis, despite strict adherence to surveillance protocols. Failure of imaging and cytology to detect most asymptomatic tumours has led to questions about the need for routine UUT surveillance. Some authors have advocated a more tailored approach to surveillance after RC, targeting high-risk patients and with limiting imaging in those patients at lowest risk of developing a subsequent UUT-TCC. mUUT-TCCs are most common in patients with TCC in the ureter or urethra, and with organ-confined bladder cancer. Although the prognosis is generally poor, long-term survival can be achieved in a subset of patients after radical nephroureterectomy (NU). Minimally invasive techniques, e.g. ureteroscopic and percutaneous resection, have been proposed as renal-sparing alternatives to radical surgery for patients with low-stage and -grade de novo UUT-TCC. However, oncological control of renal-sparing therapies in those with high-risk mUUT-TCC remains largely unconfirmed. Until oncological outcomes equivalent to the standard, radical NU, are reported in patients after RC, conservative treatment strategies should be avoided.
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PMID:Upper urinary tract tumour after radical cystectomy for transitional cell carcinoma of the bladder: an update on the risk factors, surveillance regimens and treatments. 1742 48

We report two cases of acute renal failure in patients with nonfulminant acute hepatitis A. First case is a healthy 25 year-old man complained of myalgia and jaundice. Initial laboratory results showed BUN 40 mg/dL, creatinine 5.23 mg/dL, AST 2,220 IU/L, ALT 3,530 IU/L, total bilirubin 6.26 mg/dL, and positive anti-HAV IgM antibody. Supportive treatments including fluid therapy were started. Serum creatinine and total bilirubin levels were 7.98 mg/dL and 7.66 mg/dL respectively on the 5th hospital day, and decreased gradually. He was discharged on the 12th hospital day, and was being followed up in outpatient department. Second case is a 33 year-old woman who admitted for bilateral flank pain, high fever, nausea, and vomiting. She was diagnosed as acute pyelonephritis and acute hepatitis A. On admission, BUN 13 mg/dL, creatinine 0.74 mg/dL, AST 3,720 IU/L, ALT 2,280 IU/L, total bilirubin 0.9 mg/dL were noted, and acute renal failure developed next day. Fluid therapy with antibiotics administration were started, and maximal BUN and creatinine was 41.7 and 8.09 mg/dL respectively on the 8th day. She recovered without dialysis and was discharged on the 19th hospital day. Proper and prompt comprehensive supportive measures would decrease the need for dialysis in patient of acute renal failue associated with acute hepatitis A.
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PMID:[Two cases of acute renal failure associated with nonfulminant acute hepatitis A]. 1792 55

Spontaneous renal artery dissection (SRAD) is a rare event, and thus may be a challenge for physicians to diagnose and treat. We report a case of SRAD in a healthy 56-year-old male who presented with flank pain, fever, and elevated white blood cell count. The patient was initially diagnosed with nephrolithiasis versus pyelonephritis and was admitted for observation. Multiple imaging modalities, including non-contrast computed tomography (CT), magnetic resonance imaging (MRI) with gadolinium, CT angiogram, and intraoperative angiogram, were used to make the final diagnosis of SRAD. The patient was treated with endovascular stent placement and is currently free of pain with normal laboratory values and blood pressure.
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PMID:Spontaneous renal artery dissection. 1793 71

Emphysematous pyelonephritis (EPN) is a serious and often life-threatening condition due to a gas-producing and necrotizing infection involving the renal parenchyma and perirenal tissue. The infection is almost exclusively seen in diabetic patients, and the main feature of its presence is finding gas within the kidney. Patients usually present with fever, chills, flank pain, and dysuria. Laboratory testing usually reveals hyperglycemia, leukocytosis, pyuria, an elevated blood urea nitrogen (BUN) level, and high serum creatinine level. Other, nonspecific symptoms such as abdominal pain, nausea, vomiting, and diarrhea can accompany acute pyelonephritis, as found in the reported case. The appropriate management of such serious infection requires combined medical and surgical treatment. In severe infection, nephrectomy should not be delayed. We report a case of EPN in a diabetic patient who presented with gastrointestinal symptoms. A high index of suspicion, coupled with a good imaging study [preferably computed tomography (CT) scanning] of the abdomen can lead to early diagnosis. Appropriate medical and surgical management have resulted in a successful outcome.
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PMID:Emphysematous pyelonephritis presenting as gastroenteritis. 1809 Aug 85

Here, we present a patient who underwent transperitoneal laparoscopic nephrectomy for a nonfunctional kidney on the left side, and who was found to have xanthogranulomatous pyelonephritis (XGP) on the subsequent histopathology examination. XGP is a severe, chronic infection of the renal parenchyma. Nephrectomy is the treatment of choice. Preoperative diagnosis of XGP can be challenging because the clinical presentation may vary. Our patient's loss of kidney function was due to a simple cortical kidney cyst that compressed the urinary collecting system. He presented only with mild flank pain and a poorly functioning kidney, and therefore XGP was not suspected before surgery. Because of the renal and perirenal inflammatory changes that commonly accompany XGP, the laparoscopic approach is difficult and is therefore rarely used. However, laparoscopic nephrectomy for XGP offers an easier recovery for the patient and therefore deserves further consideration as a method of treatment.
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PMID:Laparoscopic nephrectomy for xanthogranulomatous pyelonephritis in the absence of kidney stones or clinical urinary infection. 1809 29

Acute pyelonephritis is not considered a common cause of renal vein (RVT) and inferior vena caval thrombosis (IVCT). Apart from malignancy, RVT is not an uncommon condition amongst patients with nephrotic syndrome, most commonly seen in patients with membranous glomerulonephritis. However, RVT occurring in association to acute pyelonephritis is rare. Clinically, it is difficult to distinguish between acute pyelonephritis and RVT because both present with fever, flank pain, and hematuria. We report a case of acute pyelonephritis with RVT and IVCT with underlying hyperhomocysteinemia. The patient was treated with systemic anticoagulation, antibiotics, and B complex therapy. At 3 months follow-up, there was complete resolution of thrombus but the left kidney was nonfunctioning.
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PMID:Acute pyelonephritis with renal vein and inferior vena cava thrombosis in a case of hyperhomocysteinemia. 1837 93


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