BackgroundAmyloidosis is a disorder caused by extracellular tissue deposition of insoluble fibrils which may result in a wide spectrum of symptoms depending upon their types, sites and amount of deposition. Amyloidosis can be divided into either systemic or localized disease.Case presentationWe present a case of a middle-aged gentleman who presented with persistent nephrotic syndrome with worsening renal function. Repeated renal biopsies showed the presence of renal-limited AL amyloidosis. Systemic amyloidosis workup was unremarkable apart from a slightly raised band of IgG lambda level with no associated immunoparesis. The nephrotic syndrome and renal histology did not improve over a 3-year period despite being given two courses of chemotherapies.ConclusionWe hope that early recognition of this unusual localised presentation of renal- limited AL Amyloidosis and its poor response to conventional treatment can alert the nephrologist to the potential existence of this rare condition.

Tranexamic acid (TXA) is an antifibrinolytic agent commonly used to achieve hemostasis. However, there have been a few case reports suggesting that high-dose intravenous TXA has epileptogenic property. In patients with renal impairment, even administering the usual recommended dose of TXA can induce seizure episodes. We present here a patient on hemodialysis who developed seizures after receiving two doses of TXA over 5 h period.

BackgroundNephrogenic systemic fibrosis (NSF) is a complication of the gadolinium-based contrast agent used in imaging studies. It is typically characterised by hard, erythematous and indurated skin plaques with surrounding subcutaneous oedema. Distinct papules and subcutaneous nodules can also be seen. Fibrocytes in NSF are immunohistochemically positive for CD34.Case presentationWe present a case of NSF occurred after gadolinium exposure in which the initial presentation mimics an erythema nodosum (EN)-like picture. An initial skin biopsy showed EN. Subsequently the patient developed progressive skin and joints contracture. A repeated skin biopsy done three months later confirmed the diagnosis of NSF. As far as we are aware, this is the second reported case of NSF that mimicked the presentation of EN in the early phase of the disease.ConclusionsThe appearance of EN-like disease can be one of the early manifestations of NSF. We hope that early recognition of this unusual presentation can alert the physician or nephrologist to the potential diagnosis of NSF.

Rhabdomyolysis is a syndrome with a wide range of symptoms ranging from asymptomatic raised serum creatinine kinase to life-threatening metabolic disturbances and acute kidney injury. A careful history taking and high clinical suspicion on drug-drug interaction are crucial to identify the etiology of rhabdomyolysis. Here, we present a case of rhabdomyolysis due to a rare drug-to-drug interaction of simvastatin, diltiazem, and cyclosporin in a patient with IgA nephropathy. Early renal replacement therapy was initiated, and the insulting agents were withheld. Despite the metabolic disturbances were corrected, the patient succumbed to possible venous thromboembolism event during the prolonged hospital stay. Therefore, heightened awareness is required in dealing with patients with glomerulonephritis who are frequently prescribed on polypharmacy, in order to reduce unwarranted adverse events.

Dengue is a viral infection transmitted by an Aedes aegypti mosquito bite that poses a major threat to public health worldwide. While acute kidney injury secondary to dengue infection is a potentially lethal complication, it remains one of the least studied complications of dengue fever. The underlying mechanism of dengue-associated acute kidney injury is complex because it involves multiple pathways that could independently lead to its occurrence. Therefore, the cornerstone of dengue-associated acute kidney injury management should involve prompt recognition and identification of the at-risk population and administration of appropriate supportive treatment in a timely manner with the aim of preventing both renal and non-renal morbidity and mortality.