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Preparation of asymmetric particles by controlling the phase separation of seeded emulsion polymerization with ethanol/water mixture.
J Colloid Interface Sci
July 2022
Department of Chemical Engineering, Tsinghua University, Beijing 100084, China. Electronic address:
Alcohols are discovered for the first time to tune the morphology of poly(vinyl benzyl chloride)-poly(3-methacryloxypropyltrimethoxysilane) (PVBC-PMPS) composite particles through seeded emulsion polymerization within the alcohol/water mixture. Here, monodispersed linear PVBC particles was synthesized through the dispersion polymerization and employed as the seeds. The as-obtained PVBC-PMPS composite particles could be dramatically tuned from core-shell structures to snowman-like particles, to dumbbell-shaped particles, to inverse snowman-like particles when the ethanol content in reaction mixtures is only adjusted within a narrow range.
View Article and Find Full Text PDFEvaluation of Clinical and Magnetic Resonance Imaging Profile of Pituitary Macroadenoma: A Prospective Study.
J Nat Sci Biol Med
January 2018
Department of Radiodiagnosis, Dayanand Medical College and Hospital, Ludhiana, Punjab, India.
Background: Pituitary macroadenoma is a common tumor of middle-aged people. Magnetic resonance imaging (MRI) is the investigation of choice for its evaluation. Various parameters regarding the extent, consistency, and contrast uptake can be studied and a noninvasive diagnosis is possible.
View Article and Find Full Text PDFA case of contiguous primary hepatic marginal zone B-cell lymphoma and hemangioma ultimately diagnosed using contrast-enhanced ultrasonography.
Case Rep Oncol
April 2015
Division of Gastroenterology and Hepatology, Department of Internal Medicine, Tokyo, Japan.
Primary hepatic marginal zone B-cell malignant lymphoma of mucosa-associated lymphoid tissue (MALT lymphoma) is extremely rare. We present a case in which a lesion was diagnosed as 2 contiguous tumors (MALT lymphoma and hemangioma) using contrast-enhanced ultrasonography (US) with sonazoid. There has been no previous case of contiguous hepatic MALT lymphoma and hemangioma.
View Article and Find Full Text PDFNew appearance of a snowman-like, polypoid lesion on the major duodenal papilla in a patient with relapsing autoimmune pancreatitis.
Gastrointest Endosc
October 2011
Department of Internal Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea.
A non-NF2 case of schwannomas of vestibular and trigeminal nerves with different genetic alterations of NF2 gene: case report.
Surg Neurol
January 2005
Division of Neurosurgery, Institute of Neurological Sciences, Faculty of Medicine, Tottori University, Yonago 683-8504, Japan.
Background: We report a patient with 2 separate schwannomas, a vestibular schwannoma and a trigeminal schwannoma, that were attached to each other and appeared to be a single tumor on imaging studies.
Case Description: The patient, without any family history of neurofibromatosis, presented with a progressive hearing loss and mild left facial nerve palsy. Magnetic resonance imaging showed a snowman-like tumor in the left cerebellopontine angle.
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