Publications by authors named "Nalini Gupta"

Background And Objective: Oxygen desaturation events occur commonly during Endobronchial endobronchial ultrasound (EBUS) guided-transbronchial needle aspiration (TBNA) performed under conscious sedation. We hypothesized that high-flow nasal cannula (HFNC) would be superior to conventional nasal cannula (NC) in preventing these hypoxemic episodes.

Methods: We randomized consecutive subjects ≥18 years undergoing EBUS-TBNA to receive oxygen with HFNC or NC.

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Background And Objective: Bronchoalveolar lavage lymphocyte percentage (BLP) is considered a prognostic marker for interstitial lung diseases (ILDs) other than idiopathic pulmonary fibrosis (IPF). Its association with an early glucocorticoid response (EGR) has not been studied systematically. We aimed to assess the association of BLP and other factors with EGR.

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Background: We recently described the utility of the "TB Concentration & Transport" kit for biosafe, ambient temperature transport of dried sputum on -Filter, and the "TB DNA Extraction" kit for DNA extraction from -Filter for the early diagnosis of drug-resistant tuberculosis (TB). This study aimed to assess the feasibility and compatibility of these kits with line probe assay (LPA) under National Tuberculosis Elimination Programme (NTEP) settings.

Methods: Patients with presumptive pulmonary TB, multidrug-resistant (MDR) TB, or extensively drug-resistant TB (N = 8491) who attended Designated Microscopy Centers (DMCs, n = 13) under National Reference Laboratories (NRLs) at Bhopal, New Delhi, Chennai, and Bhubaneswar were screened by smear microscopy.

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Chromoblastomycosis and subcutaneous phaeohyphomycosis are implantation mycoses caused by melanized fungi. We present a unique case of concurrent chromoblastomycosis by Fonsecaea monophora and phaeohyphomycosis by Medicopsis romeroi presenting as polypoidal wrist lesion and painless cystic toe lesion respectively in a renal transplant recipient. The diagnosis was confirmed by microbiological (including molecular identification by sequencing of ITS region of rDNA) and histopathological examination.

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Introduction: Medulloblastoma is the most common pediatric malignant embryonal tumor of the cerebellum. In the absence of radiologically proven metastasis, lumbar puncture with cytological examination of the cerebrospinal fluid (CSF) is mandatory for identification of the M1 stage. This study aims to evaluate CSF cytomorphology and prognosis of the M1 stage.

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Unlabelled: Purpose: Imatinib mesylate (IM) has transformed the treatment of chronic myeloid leukaemia (CML). The improved life expectancy of CML patients has led to increased attention to the adverse effects of the drug. There are conflicting reports of the impact of IM on the female reproductive system.

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With an increasing demand for accuracy and efficiency in diagnostic pathology, computer-assisted diagnosis (CAD) emerges as a prominent and transformative solution. This review aims to explore the practical applications, implications, strengths, and weaknesses of CAD applied to diagnostic pathology. A comprehensive literature search was conducted to include English-language studies focusing on CAD tools, digital pathology, and Artificial intelligence (AI) applications in pathology.

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Background: Cesarean hysterectomy for placenta accreta spectrum disorder may be associated with severe hemorrhage because of placental invasion of the myometrium and the uterovesical space or parametrium. It leads to serious complications, such as massive hemorrhage requiring massive transfusion, coagulopathy, bladder and ureteric injuries, need for intensive care unit admission and prolonged hospital stay. To reduce the complications of cesarean hysterectomy for placenta accreta spectrum disorder, ongoing efforts are being made to develop different surgical approaches.

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A woman in her 60s presented with erythematous lesions predominantly over the joints. After evaluation by dermatology and rheumatology, she was diagnosed with dermatomyositis and initiated on oral steroids and immunosuppressants. She was subsequently referred to gynaecology services for further evaluation of possible malignancies.

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Objective: Atypia of undetermined significance (AUS) is an indeterminate category which presents a significant challenge for pathologists and clinicians. The management options are dependent on the rate of malignancy for a given populace.

Material And Methods: This is a retrospective analysis of 61 cases of the AUS Bethesda category III with grouping into neoplastic and non-neoplastic according to the histopathology data and clinical follow-up.

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Cystic lesions of the pancreas are being increasingly diagnosed incidentally in recent decades due to easy availability of abdominal imaging. They may be neoplastic or benign. Tuberculosis, the great masquerader, may rarely involve the pancreas mimicking pancreatic malignancy, cyst, or abscess.

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We present an interesting and rare case of Capillaria hepatica infection in a 2-year-old boy, who presented with fever, rash, hepatomegaly and peripheral eosinophilia. FNAC of hepatic lesion showed parasitic eggs and PCR from the aspirate confirmed the diagnosis. We describe the cytomorphological features and provide educational multiple-choice questions related to the topic.

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Background: Three techniques have been described for aspirating the bronchoalveolar lavage (BAL) fluid, namely the wall mount suction (WMS), manual suction (MS), and manual suction with tubing (MST). However, there is no direct comparison among the 3 methods.

Methods: We randomized patients undergoing flexible bronchoscopy and BAL in a 1:1:1 ratio to one of the 3 arms.

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Female Adnexal Tumour of probable Wolffian Origin (FATWO) is a rare gynaecological neoplasm of low malignant potential believed to originate from mesonephric remnants. Its rarity, non-specific presentation, histological heterogeneity and ill-defined radiological features make diagnosing them challenging.A female in her 60s presented with history of lower abdominal pain for 2 years.

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Introduction: Pulmonary Langerhans cell histiocytosis (PLCH) is a rare interstitial lung disease characterized by the accumulation of Langerhans cells within the lung tissue. The diagnosis of PLCH traditionally involves clinical, radiological, and lung biopsy histopathological evaluations.

Case Presentation: We present 2 cases where the diagnosis of PLCH was confirmed through the analysis of bronchoalveolar lavage (BAL) fluid cytology using immunoperoxidase technique, highlighting the significance of this minimally invasive technique in the diagnostic process.

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Composite lymphoma (CL) is a rare cancer characterized by the concurrent occurrence of more than one type of lymphoma within the same organ or tissue in an individual. Its occurrence at extranodal sites is exceptional, with only a few cases documented in the literature. A 62-year-old gentleman presented with dystonia, dysphagia, and irregular enlargement of the right tonsil for the last three months.

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Background: Extramedullary blast proliferations (EBPs) are known to occur in around 15% of chronic myeloid leukemia (CML) patients in the blast phase. Immunophenotypically, the EBPs are commonly myeloid as compared to the lymphoid. Amongst the lymphoid EBPs, T-lymphoblastic type is considerably rare.

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Embryonal tumors of the central nervous system (CNS) are rare and aggressive malignancies accounting for less than 1% of all central nervous system tumors. The occurrence of metastasis to extracranial sites, especially the parotid region, is highly uncommon. We present a rare case of metastatic frontal embryonal tumor (ET) in the parotid region.

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Study Question: What is the functional significance of Tex13b in male germ cell development and differentiation?

Summary Answer: Tex13b regulates male germ cell differentiation by metabolic reprogramming during spermatogenesis.

What Is Known Already: Studies in mice and humans suggest that TEX13B is a transcription factor and is exclusively expressed in germ cells.

Study Design, Size, Duration: We sequenced the coding regions of TEX13B in 628 infertile men and 427 ethnically matched fertile control men.

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We offer a comprehensive depiction of the cytomorphological characteristics of lobular endocervical glandular hyperplasia (LEGH) as observed in SurePath™ liquid-based cytology (LBC), subsequently confirmed on cone biopsy. Lobular endocervical glandular hyperplasia (LEGH), a precursor to gastric-type adenocarcinoma (GAE) of the endocervix, is rare and reports of it in cervical cytology are scarce. We provide a thorough description of the cytomorphological features of LEGH observed in SurePath™ liquid-based cytology (LBC), later confirmed by cone biopsy.

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Article Synopsis
  • A study was conducted to compare the effectiveness of 19-gauge (G) and 22-G needles in diagnosing sarcoidosis using endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA).
  • Both needles did not show a significant difference in diagnostic sensitivity, with 75.0% for the 19-G compared to 69.6% for the 22-G.
  • The 19-G needle made puncturing the lymph nodes more difficult, while both groups had similar sample adequacy and safety profiles, with the only complication being transient hypoxemia.
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Sertoli-Leydig cell tumours (SLCTs) are rare, mixed sex-cord stromal tumours composed of varying proportions of both Sertoli and Leydig cells, which account for <0.5% of all ovarian tumours. The cytomorphologic features of SLCTs are not well described in literature.

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Background: Mucormycosis is a fungal infection that can affect multiple organs. The role of fine-needle aspiration cytology (FNAC) in its diagnosis is not well documented.

Aim: The objective of this study was to describe the detailed cytomorphologic features of mucormycosis on FNAC samples.

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Synopsis of recent research by authors named "Nalini Gupta"

  • - Nalini Gupta's recent research focuses on rare disease presentations and diagnostic challenges across various medical disciplines, particularly in cytopathology and oncology, highlighting the importance of accurate diagnosis through various techniques.
  • - Her studies include unique cases such as tuberculosis mimicking pancreatic and other lesions, and diverse malignancies like composite lymphoma, highlighting innovative cytological and imaging techniques for better diagnostic yield.
  • - Gupta emphasizes the significance of understanding rare conditions and the implications of correct diagnostics, as seen in her research on hyper eosinophilia due to parasitic infections and the effectiveness of different bronchoalveolar lavage techniques in diagnosis.