Publications by authors named "Rashpal Flora"

Article Synopsis
  • Infective endocarditis (IE) is a serious infection that can make people very sick and can even lead to death.
  • It's important to quickly find and treat it, and having a team of different doctors working together helps patients do better.
  • Sometimes, diagnosing IE can be tricky because it can look different in different people, and this case shows how studying the heart valves can help doctors figure it out when they aren't sure.
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Objective: Dexamethasone is a known treatment for lymphoma, but the potency and rapidity of its effect have not been recognized. We present a case of bilateral adrenal lymphoma that significantly reduced in size after a single dose of dexamethasone.

Methods: We present the clinical course and investigations, including adrenocorticotropic hormone, cortisol, short synacthen test, computed tomography (CT), and adrenal biopsy results.

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Summary: Ectopic adrenocorticotropic hormone (ACTH) production is an uncommon cause of Cushing's syndrome and, rarely, the source can be a phaeochromocytoma. A 55-year-old man presented following an episode of presumed gastroenteritis with vomiting and general malaise. Further episodes of diarrhoea, joint pains and palpitations followed.

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Background: Appendiceal neuroendocrine neoplasms (ANEN) are mostly indolent tumours treated effectively with simple appendectomy. However, controversy exists regarding the necessity of oncologic right hemicolectomy (RH) in patients with histologic features suggestive of more aggressive disease. We assess the effects of current guidelines in selecting the surgical strategy (appendectomy or RH) for the management of ANEN.

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Tall cell variant (TCV) of papillary thyroid carcinoma (PTC), an aggressive form of thyroid cancer, is characterised by 50% of cells with height that is three times greater than the width. Very rarely, some of these cancers can progress to spindle cell squamous carcinoma (SCSC) resulting in cancers with elements of both SCSC and TCV PTC. Here we report a case of SCSC arising from TCV PTC.

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Objectives: Recent studies have shown that lymphoid enhancer binding factor 1 (LEF1) is a useful marker for chronic lymphocytic B-cell leukemia (CLL)/small lymphocytic lymphoma. Yet, it is not still being widely used in a diagnostic setting. In this study, we document the experience with LEF1 immunohistochemistry during routine diagnostics.

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Novel molecular analytes are needed in small bowel neuroendocrine tumours (SBNETs) to better determine disease aggressiveness and predict treatment response. In this study, we aimed to profile the global miRNome of SBNETs, and identify microRNAs (miRNAs) involved in tumour progression for use as potential biomarkers. Two independent miRNA profiling experiments were performed (n=90), including primary SBNETs (n=28), adjacent normal small bowel (NSB; n=14), matched lymph node (LN) metastases (n=24), normal LNs (n=7), normal liver (n=2) and liver metastases (n=15).

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Chondroid lipoma is a rare, benign soft tissue tumor with features of both embryonal fat and embryonal cartilage that most often arises in the proximal limb and limb girdles of adult women. Histologically, it comprises nests and cords of rounded cells with granular eosinophilic or multivacuolated, lipid-containing cytoplasm within prominent myxohyaline stroma and may be morphologically confused with some sarcomas. Correct diagnosis is crucial to avoid overtreatment because it does not recur or metastasize, and simple excision is curative.

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Adrenal cortical carcinosarcoma is a rare variant of adrenal cortical carcinoma. Sarcomatous change in adrenal cortical carcinomas is exceptionally rare, with only 9 cases previously described. Adrenal cortical carcinosarcomas tend to be aggressive tumors, with locoregional recurrence and rapid metastases from the sarcomatoid component.

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Adipocytic tumors are the most common type of soft tissue neoplasms. Distinguishing atypical lipomatous tumor-well-differentiated liposarcoma (WDL) from benign adipocytic neoplasms and dedifferentiated liposarcoma (DDL) from pleomorphic or myxoid liposarcoma (LPS) can be difficult. WDL and DDL characteristically harbor amplifications of the MDM2 and CDK4 cell cycle oncogenes with protein overexpression and can also overexpress the cell cycle regulator p16.

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Medullary thyroid carcinoma (MTC) is an uncommon usually slowly progressing neuroendocrine tumour that arises from calcitonin (CT) producing parafollicular C cells of the thyroid gland. It accounts for approximately 5% of all thyroid cancers. The majority of MTCs are sporadic (75%) whilst 25% are part of the MEN 2 hereditary syndrome (MEN 2A and MEN 2B and familial MTC).

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Aberrant expression of CD79a has been reported in neoplastic cells in peripheral T cell lymphoma, T-cell acute lymphoblastic leukemia and acute myeloid leukemia (especially those with t(8;21)). In this report, we document the first report of CD79a positivity in erythroid precursor cells in bone marrow. In all, we document this finding in five of 18 re-staging bone marrow trephine samples in patients of lymphoma treated with chemotherapy (one index case and 17 additional validation cases).

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In the context of the bacterial RuvABC system, RuvA protein binds to and is involved in the subsequent processing of a four-way DNA structure called Holliday junction that is formed during homologous recombination. Four crystal structures of RuvA from Escherichia coli (EcoRuvA) showed that it was tetrameric, while neutron scattering and two other crystal structures for RuvA from Mycobacterium leprae (MleRuvA) and EcoRuvA showed that it was an octamer. To clarify this discrepancy, sedimentation equilibrium experiments by analytical ultracentrifugation were carried out and the results showed that MleRuvA existed as a tetramer-octamer equilibrium between 0.

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