Cardiac
GI
Bone
GU
Neuro
Peds
Faculty
Student
Quizzes
Image DDX
Mobile
  Misc
Videocasts

 

 

Case of the Week 363




What's the most likely diagnosis?

  • 59 year-old female with persistent cough



PA and lateral chest radiographs

  1. Aortic dissection
  2. Pulmonary arterial hypertension
  3. Large bowel obstruction
  4. Compression fracture
  5. Right middle lobe syndrome

Additional Image - PA and lateral chest radiographs-3 months later

 

Additional Image

.

PA and lateral chest-3 months after first

.


Answer:

.


5. Right Middle Lobe Syndrome

.

.

More (Click Discussion Tab)


Right Middle Lobe Syndrome

General Considerations

  • Definition varies
  • Usually refers to any cause of recurrent or persistent atelectasis of the right middle lobe
  • Occurs at all ages but most common at two peaks: in children and over 50
    • Reportedly more common in women than men
  • Originally thought to be due only to bronchial obstruction, but it is more often present with non-obstructive lesions
    • Some believe the right middle lobe is more often involved because of its isolation and poor collateral flow from the upper and lower lobes

    More ...


    .

    This Week
    59 year-old female with persistent cough
     
    This video podcast reviews the causes of some of the more common pitfalls in radiology and suggests how to avoid them; there is a mini-quiz included
     
    View this complete Video Podcast (Video Podcast 16-Fractures and Dislocations of the Wrist) in full-screen size on your computer without the need to download from iTunes
     
    Key points on recognizing the most common fractures and dislocations
     
    Basic CT imaging of the brain focusing on the findings of cerebrovascular accidents
     
    The top diagnostic imaging diagnoses that all medical students should recognize according to the Alliance of Medical Student Educators in Radiology
     
    Recognizing normal and  key abnormal intestinal gas patterns, free air and abdominal calcifications
     
    Some of the fundamentals of interpreting chest images
    LearningRadiology.com
    is an award-winning educational website aimed primarily at medical students and radiology residents-in-training, containing  lectures, handouts, images, Cases of the Week, archives of cases, quizzes, flashcards of differential diagnoses and “most commons” lists, primarily in the areas of chest, GI, GU cardiac, bone and neuroradiology.