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Hemorrhagic astroblastoma: atypical presentation of a rare tumor. Illustrative case.
J Neurosurg Case Lessons
January 2025
Neurosurgery Department, Palmetto General Hospital, Hialeah, Florida.
Background: Astroblastoma is an extremely rare tumor of the central nervous system, and its origin and validity as a different entity are still being debated. Because of its rarity and similarities to other glial neoplasms, it is often misdiagnosed, impacting treatment and outcomes.
Observations: Astroblastoma is very rare and mainly affects children and young adults.
Esophagitis dissecans superficialis: an unusual desquamative disorder.
Rev Esp Enferm Dig
January 2025
Aparato Digestivo, Hospital Universitario Infanta Leonor.
We present the case of a 62-year-old woman who, during routine gastroscopy for the study of pyrosis, presented findings compatible with esophagitis dissecans superficialis. This is a rare esophageal desquamation disorder of unknown etiology, which generally has a favorable prognosis and good response to antisecretory treatment.
View Article and Find Full Text PDFMolecular Fragmentation and Recombination for the Synthesis of GFP Chromophore Analogues.
J Org Chem
January 2025
Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States.
Green fluorescent protein (GFP) chromophores are widely studied as fluorescent moieties for sensing and imaging applications. Herein, we present a straightforward synthetic strategy that involves the reaction of glycine amides with 1,3-diketones to form imidazolones through an unusual molecular fragmentation and recombination pathway. Mechanistic investigations, including crossover experiments, inspired a competing strategy that incorporates exogenous ketones into the products, yielding fluorescent GFP chromophore analogues.
View Article and Find Full Text PDFCarcinoma ex pleomorphic adenomas are rare malignant tumors of the salivary glands, primarily seen in older adults. They originate from benign pleomorphic adenomas, are aggressive, and have poorer prognosis. This case documents an unusual presentation of a massive carcinoma ex pleomorphic adenoma.
View Article and Find Full Text PDFA case of recurrent mass complicated with mitral annular calcification in a patient with systemic lupus erythematosus.
J Cardiol Cases
October 2024
Department of Cardiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.
Unlabelled: Mitral annular calcification (MAC) is a chronic degenerative process involving the fibrous support structure of the mitral valve. The prevalence of this condition significantly increases with age, and is higher in patients with cardiovascular risk factors or end-stage renal disease. However, patients with systemic lupus erythematosus (SLE) may develop atherosclerosis and MAC at a relatively young age.
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