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wulfenite    
n. 水铅铅矿;彩钼铅矿

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  • Pathology Outlines - Listeria monocytogenes
    The Gram stain indicates a bacterial pathogen consistent with Listeria monocytogenes L monocytogenes is usually transmitted by ingestion of contaminated foods such as raw vegetables, dairy products and meat
  • Pathology Outlines - Specific infectious organisms
    Listeria Gram positive bacteria strongly associated with stillbirth, premature delivery and sepsis Gross description: small white nodules (microabcesses) scattered throughout parenchyma Microscopic (histologic) description: acute intervillositis with intervillous microabcesses; organisms identified with gram stain Microscopic (histologic) images:
  • Pathology Outlines - Neisseria meningitidis
    Gram positive cocci in pairs or chains Listeria monocytogenes: Short gram positive rods Most common in patients > 50 years old Haemophilus influenzae: Gram negative coccobacilli, not predominantly in pairs Does not grow on blood agar Other gram negative diplococci: Infrequent causes of acute bacterial meningitis; can be identified by MALDI TOF
  • Pathology Outlines - Haemophilus influenzae
    The Gram stain from the sinus wash shows 4+ Gram negative coccobacilli The patient is discharged on amoxicillin clavulanate 2 weeks later, the patient is admitted for symptoms of meningitis in which the cerebrospinal fluid grew H influenzae
  • Pathology Outlines - Cutibacterium acnes
    The Gram stain shown has clumped arrangements of Gram positive rods that are characteristic of C acnes C acnes is a leading cause of prosthetic joint infections, commonly in the shoulder
  • Pathology Outlines - Helicobacter pylori
    Stomach - Helicobacter pylori gastritis Most patients are asymptomatic or have mild self limited dyspeptic symptoms but some present with abdominal pain with or without peptic ulcer disease H pylori organisms are Gram negative, helical or spiral shaped and flagellate Diagnostic tests include invasive tests such as biopsy urease test, histology or bacterial culture and sensitivity test or
  • Pathology Outlines - Shigella
    Shigella is a highly infectious, virulent Gram negative bacilli causing diarrheal diseases, with progression to dysentery
  • Pathology Outlines - Candida species
    Candida species are unicellular fungi (yeasts) that reproduce by budding and are common environmental and commensal colonizing organisms
  • Pathology Outlines - Clostridium perfringens C. septicum
    A 44 year old male construction worker presented to the emergency room with acute onset severe right thigh pain and altered mental status Physical examination showed large bulla at the location of his pain and crepitance on palpation Gram stain performed on the bulla aspirate showed large gram positive rods What is the most likely organism? Clostridium difficile Clostridium perfringens
  • Pathology Outlines - Acute villitis and intervillositis
    A Brown-Hopps stain is positive for rare gram variable rods in these foci and in the amniotic epithelium These features are most consistent with listerial placentitis Pediatrician notified of these findings by pathologist as a critical value on date and time





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