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How MRI Changes the Diagnosis of Placenta Percreta Before Catastrophic Hemorrhage

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  Placenta Percreta: When Persistent Vaginal Bleeding Is More Than a Routine Post-Abortion Complication Introduction Every year, thousands of women worldwide experience persistent vaginal bleeding after miscarriage, abortion, or delivery. In most cases, clinicians initially suspect retained products of conception (RPOC), uterine atony, or infection. While these diagnoses are common and often appropriate, a small but critically important subset of patients harbors a far more dangerous condition— Placenta Accreta Spectrum (PAS) . Among the PAS disorders, Placenta Percreta represents the most aggressive phenotype. Unlike superficial placental attachment abnormalities, placenta percreta penetrates through the entire myometrium and may invade adjacent organs, particularly the urinary bladder. Failure to recognize this condition early can lead to catastrophic hemorrhage, disseminated intravascular coagulation, multiorgan failure, emergency hysterectomy, or even maternal death. The impor...
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Emergency Brain MRI: Recognizing PRES Before Permanent Neurological Injury

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  Introduction When Minutes Determine Whether Brain Injury Is Reversible A previously healthy 36-year-old woman suddenly developed a severe headache while at work. Within a short period, she experienced blurred vision, generalized tonic-clonic seizures, and progressive confusion. On arrival at the emergency department, her blood pressure exceeded 220/120 mmHg. The emergency physician immediately considered several neurological emergencies, including acute ischemic stroke, intracranial hemorrhage, cerebral venous thrombosis, encephalitis, and hypertensive encephalopathy. A non-contrast brain CT was rapidly performed. Although no intracranial hemorrhage was identified, subtle bilateral hypodense lesions were noted within the parieto-occipital white matter. These findings prompted immediate MRI evaluation. Magnetic Resonance Imaging demonstrated symmetric vasogenic edema involving both parieto-occipital lobes. Diffusion-weighted imaging revealed no evidence of restricted dif...
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