Publications by authors named "Lovelesh Nigam"

Article Synopsis
  • * The survey received an 85% response rate from 98 uropathologists, revealing strong agreement on distinguishing between luminal and basal UC types, but varied opinions on the importance of certain genetic tests like FGFR3 and TERT promoter mutations.
  • * Most uropathologists acknowledged the aggressive nature of tumors with micropapillary features and favored further evaluation and specific molecular testing for aggressive subtypes, indicating a need for improved consensus in UC classification and treatment strategies.
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Article Synopsis
  • * In this case, the tumor exhibited round cell morphology with a distinct immunophenotype of CD34-negative and STAT6-positive, which is atypical for renal SFTs.
  • * The research highlights the importance of considering SFT in differential diagnoses for round cell tumors in the kidney, as misidentification can have significant consequences for treatment and outcomes.
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Objectives: There are scarce data on the incidence and resistance pattern of rifampicin-resistant Mycobacterium tuberculosis among kidney transplant recipients.

Materials And Methods: This is a retrospective, single- center study of kidney transplantrecipients suspected of M. tuberculosis infection.

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Neuroendocrine differentiation in the prostate gland ranges from clinically insignificant neuroendocrine differentiation detected with markers in an otherwise conventional prostatic adenocarcinoma to a lethal high-grade small/large cell neuroendocrine carcinoma. The concept of neuroendocrine differentiation in prostatic adenocarcinoma has gained considerable importance due to its prognostic and therapeutic ramifications and pathologists play a pivotal role in its recognition. However, its awareness, reporting, and resource utilization practice patterns among pathologists are largely unknown.

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Background: Systemic lupus erythematosus (SLE) is an autoimmune systemic disorder, more common in females of reproductive age-group as compared with males. There are very few studies regarding lupus nephritis (LN) in males. Hence, we decided to study the clinical and pathological findings of LN in males.

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Anti-M-type phospholipase A receptor (anti-PLAR) antibody is believed to be associated with primary membranous nephropathy (pMN) and absent in secondary MN (sMN). There are few data regarding utility of anti-PLAR antibody as a prognosticator. Our study aimed to compare the incidence of positive serum anti-PLAR antibody titer in pMN versus sMN and correlation with clinical outcome.

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Thrombotic microangiopathy (TMA) is devastating for renal transplantation (RT) causing graft/ patient loss. We present 5-year experience of TMA in RT in retrospective study of indicated renal allograft biopsies with TMA. Patient-donor demographics and associated histological findings with respect to transplants under tolerance induction protocol (Group 1) were compared with patients transplanted under triple immunosuppression (Group 2).

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There is paucity of literature on pediatric renal allograft biopsy (RAB) evaluation. We present RAB findings of pediatric renal transplantation (RT) and correlate with outcome. This is a 10-year retrospective study of diagnostic RAB of children <12 years divided in to three groups: Group 1 (n = 9): less than haplo-match living donor RT (LDRT), Group 2 (n = 32): greater than or equal to haplo-match LDRT, and Group 3 (n = 7): deceased donor RT.

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Banff'13 update included C4d-antibody-mediated rejection (ABMR) as a separate entity responsible for graft dysfunction with limited clinical/prognostic implications. We present a retrospective study to determine the incidence and outcome of C4d-negative ABMR. A total of 987 renal allograft (RA) biopsies obtained from 987 RA recipients were studied from January 2013 to January 2016.

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Diabetic nephropathy (DN) is a major complication of diabetes mellitus (DM), leading to chronic kidney disease/end-stage renal disease. Wide spectrum of nondiabetic renal diseases (NDRD) is reported in type-2 diabetes (type-2 DM). We carried out this single-center study to find clinical, laboratory, and histological features of NDRD in type-2 DM patients and to assess the prevalence of NDRD in India.

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Objective: Urinary screening is a simple inexpensive tool to evaluate kidney functions. The authors carried out urinary screening of school children for early detection of kidney diseases.

Methods: Children in the age group 5-15 y were screened for urinalysis.

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We present 5-year experience of renal transplantation (RT) with tissue eosinophilia (TE) in renal allograft biopsy (RAB) and its repercussions on the outcome. In total, 1217 recipients underwent RT from 2011 to 2015, and they were evaluated for the presence of ≥4% TE. Group 1 consisted of RT with RAB showing TE, Group 2 consisted of RT with RAB with rejections without TE, and Group 3 consisted of RT without rejections.

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Introduction: Recurrent or de novo glomerulonephritis are one of the well-known causes for renal allograft dysfunction in early and late period after renal transplantation. Focal Segmental Glomerulosclerosis (FSGS) is a devastating lesion of the renal allograft. De novo FSGS is uncommon compared to recurrent FSGS.

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Background: Timely diagnosis of invasive fungal infections (IFI) in renal transplant (RT) patients on immunosuppression is often difficult, jeopardizing their life and graft. We reported IFI and their causative fungal agents in post-RT patients.

Materials And Methods: This was a retrospective 6-year clinical study carried out from 2010 to 2015 on 1900 RT patients.

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A rare entity of persistent mullerian duct syndrome usually presents with a common symptom of undescended testis (UDT) or hernia. Male pseudo-hermaphroditism with persistent internal mullerian duct structures can present with a 46, XY karyotype with normal external genitalia and. It arises due to deficiency of anti-mullerian substance, resulting from reduced production/responsiveness to mullerian duct, leading to persistence of mullerian duct along with normal development of Wolffian duct structures.

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Background: Globally there is an increase in incidence of chronic kidney diseases (CKDs). Diabetes mellitus (DM), hypertension and stone diseases are the major risk factors for CKD. We organized kidney disease screening camps in a semi-urban population of Gujarat, India on the occasion of World Kidney Day (WKD).

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Introduction: Collapsing Glomerulopathy (CG) is recognized as distinct pattern of proliferative parenchymal injury with poor response to empirical therapy.

Aim: A single center retrospective study was carried out to find out clinicopathological features of idiopathic CG.

Materials And Methods: A total of 3335 native renal biopsies were analyzed retrospectively which were performed from 2008 to 2014 with emphasis on clinicopathological correlation and histopathological presentation.

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Introduction: Biopsy remains gold standard for diagnosis of Graft Dysfunction (GD). It guides clinical management, provides valuable insights into pathogenesis of early and late allograft injury and is indispensable for distinguishing rejection from non- rejection causes of GD.

Aim: The primary aim of the study was to evaluate the diverse histomorphological lesions in renal allograft biopsy (RAB).

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Background: Renal biopsy is a well-established diagnostic modality for the assessment of kidney diseases in children. It can provide diagnostic precision and prognostic value and guide in therapeutic options for many renal diseases.

Objectives: This report describes the indication, histopathological patterns, and epidemiology of renal diseases in children in India.

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Introduction: Antineutrophil cytoplasmic antibodies (ANCA)-associated glomerulonephritis (GN) is characterized by necrotizing and crescentic GN with paucity of immunoglobulin (Ig) and complement deposition, which is also known as pauci-immune crescentic GN. Membranous nephropathy (MN) is characterized by the formation of subepithelial immune deposit with resultant changes in glomerular basement membrane (GBM), most notably spike formation.

Case Presentation: A 48-year-old man presented with marked proteinuria, hypoalbuminemia, and renal dysfunction with positive results for myeloperoxidase (MPO) and ANCA.

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