A Rare Case of Metastatic Hepatocellular Carcinoma Masquerading as a Forehead Hematoma by Kimberly Sanders, Ashley Thomas, Carmen Isache, Anwer Siddiqi

“…Herein, we report an unusual case of a “forehead hematoma” leading to the formal diagnosis of metastatic HCC.…”
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Detailed characterization of complex banding in air-cooled bainitic steels by Morales-Rivas L., Roelofs H., Hasler S., Garcia-Mateo C., Caballero F.G.

“…Finally, a set of theoretical calculations suggested that the solidification mode is responsible for such unusual partitioning behavior, which is beneficial in terms of the bainitic transformation.…”
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Acute Liver and Renal Failure: A Rare Adverse Effect Exclusive to Intravenous form of Amiodarone by Robin Paudel, Prerna Dogra, Saurav Suman, Saurav Acharya, Jyoti Matta

“…Amiodarone is an antiarrhythmic drug which is highly effective against a wide spectrum of ventricular tachyarrhythmias making it irreplaceable in certain group of patients. We report an unusual case of acute liver and renal failure within 24 hours of initiation of intravenous (IV) amiodarone which resolved after stopping the medication. …”
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Endodontic treatment of third molars from a conservative perspective. A case report by Luis Darìo Pèrez Villalba, Fernando Marcelo Armijos Briones

“…Endodontic treatments of third molars are extremely difficult because they are located posteriorly, have unpredictable internal anatomy, strange occlusal anatomy, and unusual eruption patterns. A 28-years-old patient who attended the doctor’s office for endodontic treatment of the upper right third molar it is presented. …”
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Primary Cecal Squamous Cell Carcinoma: A Case Report of a Rare Tumor with Poor Prognosis by Mohamed Bouzroud, Mustapha Azzakhmam, Aboulfeth El Mehdi, Bouchentouf Sidi Mohammed, El Kaoui Hakim, Oukabli Mohaned, Bounaim Ahmed

“…Squamous cell carcinoma of the colon is a rare tumor and primary cecal localization is unusual. This malignant condition is marked by a worst prognosis due to early local invasion. …”
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Metastatic Papillary Thyroid Carcinoma with Multifocal Synchronous Transformation to Anaplastic Thyroid Carcinoma by Mark Benedict, Jose Costa

“…In the present case report and subsequent discussion we highlight an unusual case of PTC with transformation to anaplastic thyroid carcinoma, which is shown to involve numerous locations to include near total lung parenchyma obliteration. …”
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Left Subclavian Artery Pseudoaneurysm after a Traffic Accident: A Case Report by J. Enamorado-Enamorado, J. J. Egea-Guerrero, J. Revuelto-Rey, E. Gordillo-Escobar, C. Herrera-Melero

“…In rare cases, this injury has been described secondary to a blunt trauma. We present an unusual case of pseudoaneurysm that includes the origin of left subclavian artery in the context of severe multiple injuries after a traffic accident. …”
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Adrenal Lymphangioma Masquerading as a Catecholamine Producing Tumor by Israel Hodish, Lindsay Schmidt, Andreas G. Moraitis

“…Objective. To report the unusual case of an adrenal lymphangioma presenting in a patient with an adrenal cystic lesion and biochemical testing concerning for pheochromocytoma. …”
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Ulcerative Lichen Planus in Childhood by Chiyadu Padmini, K. Yellamma Bai, Vinil Chaitanya, M. Shilpa Reddy

“…The present study is a report on an unusual case of ulcerative oral LP involving the dorsum of tongue in a 12-year-old boy. …”
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Pulmonary Vein Occlusion Requiring Lobectomy after Radiofrequency Catheter Ablation for Atrial Fibrillation: A Case Report and Review of the Literature by Žymantas Jagelavičius, Ana Baužienė, Vytautas Jovaišas, Ričardas Janilionis

“… Pulmonary vein stenosis is a potential complication after radiofrequency ablation for atrial fibrillation. We present an unusual case of this complication that progressed to vein occlusion and required lobectomy and review the literature. …”
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Cytogenetics of Oryctes nasicornis L. (Coleoptera: Scarabaeidae: Dynastinae) with Emphasis on Its Neochromosomes and Asynapsis Inducing Premature Bivalent and Chromosome Splits at... by B. Dutrillaux, A. M. Dutrillaux

“…Two male specimens from France (subspecies nasicornis) displayed an unusual behaviour of their meiotic chromosomes in 30–50% of spermatocytes, with asynapsis at pachynema, premature bivalent and chromosome split at metaphases I and II. …”
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Ectopic Tooth in Mandibular Canal, Maxillary Sinus, and Mandibular Condyle by Mert Akbas, Zülfikar Karabıyık, Altan Varol

“…Thus, ectopic teeth can be followed up regularly in case of no signs and symptoms. If the patient has unusual orofacial pain, undiagnosed nasal discharge, maxillary sinusitis, preauricular pain, preauricular fistula, trismus, and lip paresthesia, the patient should be evaluated in terms of ectopic tooth. …”
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Bilateral Asynchronous Renal Cell Carcinoma with Metastatic Involvement of the Tongue by Naseem Ghazali, Charlotte Davis, A. W. Barrett, John V. Tighe

“…Lingual metastasis by RCC is rare. We present an unusual case of bilateral asynchronous RCC. Involvement of the right kidney was discovered only after a metastatic tongue lesion was diagnosed. …”
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Microscopic Polyangiitis with Pulmonary Fibrosis: An Often-Recognized Manifestation of the Disease by Liam M. Clifford, Jamma Li, Christopher J. Renaud, Suran L. Fernando

“…Microscopic polyangiitis (MPA) can manifest with atypical features such as pulmonary fibrosis and chronic obstructive pulmonary disease (COPD), which are atypical and unusual features of small vessel vasculitis. Case Presentation. …”
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Two Mutations in Surfactant Protein C Gene Associated with Neonatal Respiratory Distress by Anna Tarocco, Elisa Ballardini, Maria Raffaella Contiero, Giampaolo Garani, Silvia Fanaro

“…We present an extremely low birth weight male infant with an unusual course of respiratory distress syndrome associated with two mutations in the SFTPC gene: C43-7G>A and 12T>A. …”
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Unforeseen Hodgkin Lymphoma Hidden behind Hypercalcemia by Moutaz Ghrewati, Balraj Singh, Parminder Kaur, Michael Maroules

“…Only a few case reports have been published in the literature to date. We report an unusual case of a 61-year-old female who presented with altered mental status, nausea, vomiting, and dizziness and was found to have multiple enlarged lymph nodes, and blood work showed hypercalcemia. …”
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Dentinal Dysplasia Type I: A Case Report with a 6-Year Followup by Sezin Ozer, Bora Ozden, Feyza Otan Ozden, Kaan Gunduz

“…In the radiographic examination, it was determined that some of the unerupted permanent teeth of the patient had short, blunted, and malformed roots with obliterated pulp chambers, although the bone below the teeth showed well-defined margins. This unusual case of generalized short roots presents a case demonstrating both classic and atypical features of dentinal dysplasia type I (DDI) in the mixed and permanent dentitions. …”
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Assessment of the impact of COVID-19 on the hearing organ by Jan Piotrowski, Bianka Nowińska, Izabela Hądzlik

“…Otologic dysfunctions are an unusual manifestation of COVID-19 infection. Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a probable etiological agent of hearing organ dysfunction, including sudden sensorineural hearing loss (SSNHL). …”
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A Rare and Serious Unforeseen Complication of Cutting Balloon Angioplasty by Praveen Vemula, Jagadeesh K. Kalavakunta, George S. Abela, Milind Karve

“…Here we report a very unusual and inadvertent extraction of a stent previously deployed in the ramus intermedius coronary branch by a cutting balloon catheter. …”
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Advanced Esophageal Neoplasm with Subcutaneous Metastasis by Rivadávio A. M. de Oliveira, Tassiara da Silva, Mariana Miyasaki Piovesana, Carlos Eduardo Stecca, George A. Lopes, Vitor Teixeira Liutti

“…Subcutaneous metastasis from internal malignancies is unusual, corresponding to less than 10% of cases. …”
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