37 results
Causes of Culture Negative Abscess - Differential Diagnosis Framework
Consider prior antibiotics as a cause of a
Causes of Culture ... Negative Abscess ... antibiotics as a cause ... SAPHO, Sweet's Syndrome ... Culture #Negative #Abscess
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
and Management ... • Most common cause ... Pathophysiology ... Management: • ... Coccidioides • Parasite
Causes of Acute Onset Fever - Differential Diagnosis Algorithm
Viral:
 • Rhinovirus
 • Influenza Virus
 • Parainfluenza
Causes of Acute ... eg.malaria) • Other parasites ... Skin Infection Abscess ... Neuroleptic malignant syndrome ... Diagnosis #Algorithm #causes
Causes of Intestinal Obstruction - Differential Diagnosis
Lesions Extrinsic to the Intestinal Wall:
 • Adhesions: Postoperative, Congenital,
Causes of Intestinal ... Intra-abdominal abscess ... mesenteric artery syndrome ... , Phytobezoar, Parasite ... Diagnosis #SBO #bowel #Causes
Algorithm for the Evaluation of Chronic Diarrhea (< 7 days)
Exclude:
1. Causes of acute diarrhea
2. Lactose intolerance
3.
Causes of acute ... Irritable bowel syndrome ... Parasitic infections ... Malabsorption syndromes ... Chronic #Diarrhea #management
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Diagnosis- Compatible syndrome ... Syphilis • Pyogenic Abscess ... • Nocardia • Parasitic ... differential #diagnosis #causes
Cauda Equina Syndrome
Causes:
 • Large lumbar degenerative disc herniation (central)
 • Severe lumbar spondylosis
 • Neoplasm
Cauda Equina Syndrome ... Causes: • Large ... • Infection (abscess ... #CaudaEquina #Syndrome ... #MSK #pathophysiology
Hantavirus
Pathogen: Hantavirus - Rodents are the primary reservoir
Transmission:
 • Shed in the urine, feces, saliva of
barns and lake houses ... Cardiopulmonary Syndrome ... chills, myalgias, nausea ... Hantavirus #diagnosis #management ... #treatment #microbiology
Microbial Etiology of Acute Pharyngitis - IDSA
Bacterial
 • Group A streptococcus - Pharyngotonsillitis, scarlet fever
 •
necrophorum - Lemierre’s syndrome ... peritonsillar abscess ... #differential #causes ... #bacteria #microbiology
Causes of Antibiotic Failure - Differential Diagnosis Framework
Diagnosis:
 • Non-Infectious: Malignant, Autoimmune, Drug-related (NMS, serotonin syndrome,
Causes of Antibiotic ... NMS, serotonin syndrome ... Viral, Fungal, Parasite ... Source control (abscess