Publications by authors named "Tarek Rahmeh"

Summary: The most common sites of distant metastases of papillary thyroid carcinoma (PTC) are lung and bone. Widespread distant metastases of PTC are rare and associated with poor overall prognosis. Metastases to sites such as liver and pancreas are extremely rare, and literature is sparse on overall survival.

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Background: Thyroid nodules are stratified through fine-needle aspiration (FNA) and are often categorized using The Bethesda System for Reporting Thyroid Cytopathology, which estimates the risk of malignancy for six cytopathological categories. The atypia of undetermined significance (AUS) and follicular lesion of undetermined significance (FLUS) categories have varying malignancy rates reported in the literature which can range from 6 to 72.9%.

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Adrenal cavernous hemangiomas are a rare, benign, and non-functional tumor. We report a case of a 62-year-old male who presented with right upper quadrant and flank pain. Physical examination revealed a fullness of the right upper quadrant.

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Objectives: The implementation of next-generation sequencing (NGS) in routine clinical hematology practice remains limited. We evaluate the clinical value of NGS in the screening, diagnosis, and follow-up in hematologic neoplasms.

Methods: A targeted NGS panel was used to assess a total of 178 patients for questionable or previously diagnosed myeloid neoplasms.

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Background: Urinary cytology is routinely used in the diagnosis of urothelial neoplasms, with good sensitivity for high-grade urothelial carcinoma (HGUC) but less so for low-grade urothelial neoplasm (LGUN). There is significant interobserver and interinstitutional variability, especially for the atypical category. The Paris system for reporting urinary cytology (TPS) was introduced to better define the various categories, especially atypical cytology.

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Squamous cell carcinoma (SCC) of the bladder is uncommon, but can arise in the setting of long-term bladder catheterization and chronic inflammation. SCC can arise primarily from the suprapubic catheter tract, but fewer than 10 such cases have been reported. We document 2 cases of SCC arising from the suprapubic tract associated with chronic indwelling urinary catheters.

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Background: Primary renal synovial sarcoma is a relatively recently described and characterized neoplasm, formerly designated embryonal sarcoma of the kidney, and has not been diagnosed before by fine needle aspiration biopsy cytology. We describe the cytologic features of a malignant biphasic neoplasm of the kidney that was subsequently diagnosed at nephrectomy and confirmed with molecular genetic analysis as a biphasic renal synovial sarcoma.

Case: A 38-year-old male presented with acute abdominal pain.

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