Caceres’ Corner: Case No. 28 (Update: Solution)

Dear friends,

As summer is here and the weather is hot, Muppet wants to show you an easy case:

Preoperative chest for urethral stenosis in a 26-year-old male.


1. Pleural mesothelioma
2. Lung tumor
3. Loculated fluid
4. None of the above

26-year-old man, PA chest

26-year-old man, Lateral chest

Click here for the answer to case #28

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    Jul 2012
    DISCUSSION 32 Comments

    32 Responses to : Caceres’ Corner: Case No. 28 (Update: Solution)

    1. Balam er says:

      This might be a tumor as seen in the lateral x ray

    2. Dr Hesham says:

      4 non above

    3. genchi bari italy says:

      ernia diaframatica di Morgagni-Larrey, a contenuto “solido” ( fegato-omento ecc.)

    4. Miguel says:

      First of all, the information given (the patient’s age, gender and pathology) catches my attention. Is the urethal strictures caused by a trauma? An infection (STI)?
      On the PA and lateral chest films I see a relatively well circumscribed anterior right based mass, that seems to have an extrapulmonary location/origin (the medial and superior margin in the PA and lateral films forms an obtuse angle with the chest wall). There is a blunted right lateral costo-frenic angle, signs of mass effect on the pulmonary parenchyma (like the displacement of the minor fissure in the lateral film), but there’s no mediastinal shift. I don’t see calcifications, rib destruction, pleural effusion (posterior costofrenic angle is not blunted) or other relevant changes in the chest film.
      The findings remind me of a benign pleural lesion, like a fibroma (although I understand it is usually presents in older patients) or a lipoma, so my first choice is number 4. Nevertheless, as a second option I wouldn’t discard number 3.

      • Jose Caceres says:

        Urethral stricture caused by trauma four years earlier

        • Mm says:

          There may have been a congenital defect of the diaphragm and I think that with the trauma (you said: Urethral stricture caused by trauma four years earlier) there may have been increased intraabdominal pressure, and this made the migration of abdominal structures into the chest

    5. dr Slavina Dimitrova says:

      Loculated fluid


      Io penso ad una ernia diaframmatica, di Morgagni-Larrey, a contenuto “solido”( fegato-omento.etc.)

    7. DR.HINA says:

      3-loculated fluid

    8. Albert says:

      Although its size make it difficult I woul locate the origin of the sharply marginated oppacity in the right cardiophrenic angle. It’s rounded, homogenous and seems to be extrapulmonary. My differential would include Morgagni’s hernia and huge pericardial cyst (option I prefer in this case).

    9. Lola la Piconera says:

      The answer for me is 4. None of the above.
      Pleural mesothelioma, lung tumor are not very usual in a 26 y.o. man.
      Loculated fluid is rare in a patient with both posterior costophrenic angles clear.
      It seems to me the pregnant sign can be seen on the lateral view. There is an opacity in the lower and back aspect of the “anterior clear space”
      Could be it a Tymolipoma? Sometimes these tumours go down and puttheirselves in the costophrenic angle

    10. Jose Caceres says:

      Welcome back, Lola. You missed something.

    11. Lola la Piconera says:

      May I know something about what I´ve missed? Could you give me a clue? After all is the Olimpycs´time when everybody feel generous.

    12. Mm says:

      I think the answer is 4. None of the above.
      Pericardial cyst and Morgagni’s hernia are good options.
      In the frontal view there is air in the right upper quadrant instead of the liver density, that’s why I think Morgagni hernia is the most likely diagnosis

      • Jose Caceres says:

        How would you tie the hernia to the urethral stricture?

        • Mm says:

          I made ​​a mistake, answered elsewhere above

          There may have been a congenital defect of the diaphragm and I think that with the trauma (you said: Urethral stricture caused by trauma four years earlier) there may have been increased intraabdominal pressure, and this made the migration of abdominal structures into the chest

          • Jose Caceres says:

            Could it be a traumatic hernia?

            • Mm says:

              It was said in case 26: If previous trauma is elicited, traumatic hernia should be ruled out.
              But it was also mentioned that an elevated diaphragm usually has a concave, well-defined border (like this case)
              , whereas hernias have an irregular and flatter contour.
              I keep thinking of a hernia despite the previously mentioned
              . I thought of Morgagni hernia because it is located in the anterior side of the right hemidiaphragm
              but I can not rule out a traumatic diaphragmatic hernia

    13. RadLex says:

      The right hemi-diaphragm is raised with air present in the subdiaphragmatic region. Is the patient septic? I would include subdiaphragmatic abscess in the differential diagnosis if so.

    14. RadLex says:

      Hmm is it gross right-sided hydronephrosis secondary to urinary obstruction?

    15. Jose Caceres says:

      Answering Mm here, because there is no room left!
      In my opinion, the role of the CXR is to suspect an specific abnormality. Once you do that, you should use the most appropiate diagnostic method to confirm your suspicion.
      Sorry if my wording in case 26 misled you. What I said works most of the time; but nor all times (nothing does). As somebody said: “don’t believe anything you hear and only half of what you see”.
      But one thing stands: a density in contact with the diaphragm may come from below.

      • Albert says:

        But couldn’t it be a chilaiditi sign? I mean, I considered diaphragmatic hernia as a possibility, but as far as I concern it’s not common that it doesn’t contain intestine and that it’s assymptomatic in this location and with this size. With this and considering the classical three differential diagnostic of opacities in this location (Morgagni, lipoma and pericardial cyst) I chose one (pericardial cyst because of the homogeneity, the rounded shape and the abscence of symptoms). Anyway, the hernia is for sure a possibility and maybe the best with the trauma history. A CT is unavoidable from my point of view.

        • Jose Caceres says:

          It could be a Chilaiditi’s; but, as you say, CT is unavoidable. Better safe than sorry. Will tell the story of this case in the final answer.
          Hernias are usually asymptomatic. On the right side, liver goes up; bowel is common on the left side.

    16. RadLex says:

      Answer no.4 – none of the above. Pleural fibroma?

    17. Marcy says:

      I also would say that it is a Morgagni hernia.
      I think I see airfill structures within the high density in the right hemithorax.

    18. amutha says:

      4, ?mediastinal mass

    19. Deniz KIZILIRMAK says:

      a trauma cause both traumatic hernia and urinary obstruction. for further investigation torax ct or usg could be performed.

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