A case report of mucinous tubular and spindle cell carcinoma of the kidney.

Mucinous tubular and spindle cell carcinoma (MTSCC) is a rare type of kidney tumor that has only recently been described, with less than eighty cases in the literature. This was only recognized as a specific entity in the World Health Organization 2004 classification of Renal Cell Carcinoma (RCC). MTSCCs are polymorphic renal neoplasms characterized by small, elongated tubules lined by cuboidal cells with cords of spindled cells separated by pale mucinous stroma.

Implications of a diagnosis of atypical small acinar proliferation (ASAP) and high-grade prostatic intraepithelial neoplasia (HGPIN) on prostate biopsy: a 5-year follow-up study.

Background: In the era of active surveillance of low- and intermediate-risk prostatic cancer, a reconsideration of the implications of a biopsy report of ASAP and/or HGPIN may be timely.

Aims: We investigated the implications of a diagnosis of atypical small acinar proliferation (ASAP) and high-grade prostatic intraepithelial neoplasia (HGPIN) on prostate biopsy.

Methods: The rate of re-biopsy and the incidence of carcinoma on repeat biopsy for benign, HGPIN, and ASAP groups were compared.

A case of adrenal Cushing's syndrome and primary hyperparathyroidism due to an atypical parathyroid adenoma.

Cushing's syndrome is a rare disorder of cortisol excess and is associated with significant morbidity and mortality. Hypercalcaemia due to hyperparathyroidism is a common condition; however, in 10% of young patients, it is associated with other endocrinopathies and occurs due to a genetic variant [e.g.

Rapid and sustained airway control in metastatic malignant melanoma: a case report.

http://bit.ly/32baZvo.

Acute interstitial nephritis with podocyte foot-process effacement complicating Plasmodium falciparum infection.

Background: Malarial acute renal failure (MARF) is a component of the severe malaria syndrome, and complicates 1-5% of malaria infections. This form of renal failure has not been well characterized by histopathology.

Case Presentation: A 44 year-old male presented to the emergency department with a 5-day history of fever and malaise after returning from Nigeria.

Comparison of urinary cytology and fluorescence in situ hybridization in the detection of urothelial neoplasia: An analysis of discordant results.

Background: We examine the performance of cytology and FISH in the detection of urothelial carcinoma (UC), and explore the reasons for discrepant results, and potential clinical implications.

Methods: Urine samples from 89 patients were prospectively collected for simultaneous cytology and UroVysion FISH, and results correlated with concurrent biopsies and/or clinical or histologic follow-up data. Corresponding tissue biopsies, where available, were also evaluated by FISH.

Chromosomal rearrangement-A rare cause of complement factor I associated atypical haemolytic uraemic syndrome.

Chromosomal rearrangements affecting the genes encoding complement factor H and the factor H related proteins have been described in aHUS patients. To date such disorders have not been described in other aHUS associated genes. We describe here a heterozygous 875,324bp deletion encompassing the gene (CFI) encoding complement factor I and ten other genes.

Lipotoxicity causes multisystem organ failure and exacerbates acute pancreatitis in obesity.

Obesity increases the risk of adverse outcomes during acute critical illnesses such as burns, severe trauma, and acute pancreatitis. Although individuals with more body fat and higher serum cytokines and lipase are more likely to experience problems, the roles that these characteristics play are not clear. We used severe acute pancreatitis as a representative disease to investigate the effects of obesity on local organ function and systemic processes.

p16ink4 immunoreactivity is a reliable marker for urothelial carcinoma in situ.

Morphological discrimination of urothelial carcinoma (UC) in situ, a precursor of high-grade invasive carcinoma, from severe reactive atypia is essential, but can be challenging at times. Mutations of the cell cycle regulatory gene INK4a (located at 9p21) that encodes p16(INK4) are one of the critical early events in carcinogenesis of UC. The purpose of this study was to investigate p16(INK4) expression in different urothelial lesions and assess its possible utility in distinguishing reactive versus neoplastic changes.

PPAR alpha agonists improve renal preservation in kidneys subjected to chronic in vitro perfusion: interaction with mannitol.

We developed methods for prolonged (12 h), sterile, normothermic perfusion of rat kidneys and screened compounds for renal preservation including: mitochondrial transition pore inhibitor (decylubiquinone); caspase inhibitor (Z-VAD); peroxisome proliferator-activated receptor-alpha (PPARalpha) agonists (gemfibrozil, WY-14643); antioxidants (trolox, luteolin, quercetin); growth factors (HGF, PDGF, EGF, IGF-1, VEGF, transferrin); calpain inhibitor (Z-Val-Phe-CHO); calmodulin inhibitor (W7); K(ATP) opener (minoxidil, minoxidil sulfate); PARP inhibitor (3-aminobenzamide); calcium channel blocker (verapamil); V(2) agonist (DDAVP); diuretics (acetazolamide, hydrochlorothiazide, furosemide, mannitol); peroxisome proliferator-activated receptor-beta agonist (L-165041); dopamine agonist (dopamine); essential fatty acid (linolenic acid); beta-NAD; urea; uric acid; and aldosterone. In pilot studies, only PPARalpha agonists and mannitol provided promising results. Accordingly, these agents were investigated further.

Up-regulation of dicer, a component of the MicroRNA machinery, in prostate adenocarcinoma.

MicroRNAs are small noncoding 18- to 24-nt RNAs that are predicted to regulate expression of as many as 30% of protein-encoding genes. In prostate adenocarcinoma, 39 microRNAs are up-regulated, and six microRNAs are down-regulated. Production and function of microRNA requires coordinated processing by proteins of the microRNA machinery.

Prevention and reversal of lupus in NZB/NZW mice by costimulatory blockade with adeno-associated virus-mediated gene transfer.

Objective: To investigate the potency of costimulatory blockade with adeno-associated virus (AAV)-mediated gene transfer in the prevention and reversal of lupus in a murine model.

Methods: AAV vectors expressing CTLA-4Ig or CD40Ig were injected into NZB/NZW mice. Serum levels of transgene expression and autoantibody titers were determined by enzyme-linked immunosorbent assay.

Age-associated changes in alpha-methyl CoA racemase (AMACR) expression in nonneoplastic prostatic tissues.

Alpha-methyl CoA racemase (AMACR) is overexpressed in several human cancers, most notably colon and prostate. AMACR expression in the prostate has been investigated primarily in patients, in an older age group, treated for prostatic carcinoma and benign prostatic hypertrophy. No studies have assessed the age distribution of AMACR expression in normal men.

Potential pitfalls in the frozen section evaluation of parenchymal margins in nephron-sparing surgery.

With advances in radiographic imaging, there has been an increase in the incidental detection of small renal cell carcinomas, with a resultant increase in partial nephrectomies for these tumors. Partial nephrectomy often necessitates assessment of renal parenchymal margins by frozen section. To determine the most common problematic "lesions" encountered on renal parenchymal margins, we evaluated all diagnostically challenging frozen sections that had been referred to a genitourinary pathologist.