Dr. Pepe’s Diploma Casebook 154 – All you need to know to interpret a chest radiograph – Eighth Session – SOLVED

Dear Friends,

Showing today the leading case of webinar eight. Radiographs belong to 27-year-old with seminoma and pain in the anterior chest wall. What is your opinion about the  clavicular lesion?

1. Metastasis
2. Osteomyelitis
3. Benign bone lesion
4. Any of the above

Check out the last webinar form the series explaining in detail this case on our youtube channel and and catch up on previous ones on the EBR YouTube channel!

Click here to see the answer

Findings: the chest radiograph shows a lytic lesion in the proximal right clavicle (A-B, circles). It has a sclerotic border (A-B, red arrows), indicating a slow-growing process. This finding excludes options 1 and 2 and leaves option 3. Benign bone lesion as the correct diagnosis.

This lytic lesion correspond to a normal variant, called the rhomboid fossa. It represents the insertion site of the costoclavicular ligament( yellow), which extends from first rib (red) to the proximal clavicle (blue).
Is a normal variant and should not to be mistaken for an osteolytic lesion.

It occurs in 30% of males and 5% of females. It is more common in the young and becomes less visible with age.

Final diagnosis: rhomboid fossa of right clavicle

Congratulations to Faelivrin, who made the correct diagnosis

Teaching point: it is important to know the most common normal variants of the chest, to avoid confusing them with pathology.

Dr. Pepe’s Diploma Casebook 153 – All you need to know to interpret a chest radiograph – Seventh Session

Dear Friends,

Today I am presenting the leading images of the seventh webinar. They belong to a 66-year-old man with vague chest complaints. Chest was read as normal, but there is a visible abnormality, difficult to see.
Can you see it?

Remember, you can see the previous sessions of the webinar in our youtube channel. We will published the answer to this question (and the webinar) on Friday.

Click here to see the answer

Findings: PA radiograph (A) is unremarkable. In the lateral view there is a nodule projected over the mid-thoracic spine (B, arrow). The nodule was overlooked, and the examination was read as normal.

One year later the nodule has increased in size (C, arrow) and has become visible behind the heart in the PA view (D, arrow). It was diagnosed as adenocarcinoma and liver metastases were found.

Two years later, CT and PET-CT show marked progression of the liver metastases.

Final diagnosis: lung adenocarcinoma missed in the first chest radiographs, with widespread metastases two years later
 
Congratulations to Spat, who discovered the initial nodule.
 
Teaching point: remember to look at the dorsal spine in the lateral view. By doing so, you may discover early disease, with great benefit for the patient.

Dr. Pepe’s Diploma Casebook 152 – All you need to know to interpret a chest radiograph – Sixth Session – SOLVED

Dear Friends,

Welcome to the new year and a new webinar. The leading images of the webinar six belong to a 73-year-old woman with dyspnea and chest pain. What do you see?

Diagnosis:

1. Intrathoracic goiter
2. Dilated esophagus
3. Aortic aneurysm
4. Any of the above

If you would like to see the previous webinars, check it here!

Click here to see the answer

You can see the webinar here.

Findings: PA radiograph shows widening of the right superior mediastinum (A, arrow), which in the lateral view is located behind the trachea (B, arrows). The initial impression is of an upper middle mediastinal mass. The first diagnosis that come to mind is a goiter.

However, looking downward in the PA view, bulging of the azygo-esophageal line is evident (A, red arrow). In the lateral view there is opacification of the retrocardiac space (B, red arrow). Therefore, we are dealing with a lesion that extends along the middle mediastinum from top to bottom. The findings point to a dilated esophagus.

Esophagogram was unremarkable. Coronal and sagittal CT shows a cystic tubular mass extending along the posterior wall of the esophagus (C-D, arrows).

Final diagnosis: cystic lymphangioma of mediastinum
 
This is a difficult case and I didn’t expect you to make the diagnosis. But I believe that you should have noticed the bulging of the azygo-esophageal line in the PA view and the occupation of the retrocardiac space in the lateral view, suggesting a dilated esophagus as the most likely diagnosis.
 
Congratulations to MG who was the first to see the findings.
 
Teaching point: Remember that an opacity that goes from top to bottom in the middle mediastinum should suggest a dilated esophagus or an esophagus-related process

Dr. Pepe’s Diploma Casebook 151 – All you need to know to interpret a chest radiograph – Fifth Session – SOLVED!

Dear Friends,

Showing today the leading case of the next webinar. PA radiograph belongs to an 86-year-old woman with chest pain.
What do you see?

More images will be shown on Wednesday. You can refresh your memory viewing the older webinars on our youtube channel.

Dear Friends, showing today a lateral film of the case. Hope it helps.

Click here to see the lateral film

Click here to see the answer

Findings: PA radiograph shows a faint opacity in the left mid-lung field (A, arrow), better seen in the cone down view (B, arrow). The opacity is ill-defined, and my first impression would be an intrapulmonary lesion.

The lateral view shows that the opacity is located in the posterior chest wall. It has a typical pregnancy sign (C, arrow), indicating an extrapulmonary origin.
Enhanced axial CT confirms a low-density chest wall mass (D, arrow). Note the anterior displacement of the intercostal vessel (D, red arrow).

Final diagnosis: lymphoma of chest wall
 
Congratulations to all of you who diagnosed a chest wall lesion. Special mention to MK, who was the first to give the answer.
 
Teaching point: This case documents the importance of the lateral chest to clarify indeterminate findings in the PA radiograph.

Check the full webinar here

Dr. Pepe’s Diploma Casebook 149 – All you need to know to interpret a chest radiograph – Third Session – SOLVED

Dear Friends,

I am showing today the leading image of the third webinar. If you haven’t seen them, you can see the first one here and the second one here:

Chest radiograph belongs to a 24-year-old man with occasional episodes of fainting, currently asymptomatic.

What do you see?

Come back on Friday and enjoy the recording of the third webinar with the answer to this case and more information!

Click here to see the answer

Findings: PA chest radiograph shows convexity of the right outline of the middle mediastinum (A, arrow), suggesting dilatation of the ascending aorta. Some of you have mentioned aortic coarctation, which is not a good option because rib notching is not visible, and the aortic knob is unremarkable.
Given the patient´s age, a good possibility is congenital aortic stenosis.

Enhanced sagittal CT reconstruction shows dilatation of the ascending aorta (B, asterisk) and heavy calcification of the aortic valve (B, arrow). Axial CT demonstrated a malformed and calcified aortic valve (C, circle).

Final diagnosis: congenital aortic valve stenosis with post-stenotic dilatation

Congratulations to Renga, who was the first to mention the ascending aorta dilatation.
 
Teaching point: the middle third of the mediastinum is occupied by the aorta and pulmonary artery. Any mediastinal abnormality in this area should be suspected to have a vascular origin.

You can see on our youtube channel the webinar Prof. Cáceres has prepared discussing this case and others.

Dr. Pepe’s Diploma Casebook – All you need to know to interpret a chest radiograph – Second Session – SOLVED

Dear Friends,

Today I am presenting the leading case of the second webinar. The PA radiograph belongs to a 62-year-old man with hemoptysis.

Is the radiograph abnormal?
If so, what do you see?

Starting this week, I have decided to stop giving live webinars. They will be recorded and published at the end of the week, together with the answer to the case. You can see the first session here

Click here to see the answer

Findings: PA chest radiograph shows convexity of the aorto-pulmonary window (A, arrow) and an opacity in the upper left hilum (A, red arrow). The findings were not present in a film taken three years earlier (B, circle) and suggest a pulmonary process with mediastinal adenopathy.

Findings were overlooked and the chest was read as normal. Six months later the patient returned with acute right chest pain. PA chest shows two triangular pleural-based opacities (C, arrows) suggestive of Hampton’s humps. The convexity at the APW is larger (C, green arrow) and the hilar opacity has increased in size (C, red arrow).

Coronal CT shows the typical appearance of pulmonary infarcts at the right lung base (D, arrows). There is large adenopathy at the APW (D, green arrow) accompanied by a lung mass (D, red arrow).

Final diagnosis: carcinoma of the lung with mediastinal metastases and associated pulmonary infarcts.
 
Congratulations to S, who made a brilliant diagnosis.
 
Teaching point: Remember the importance of checklists. If a checklist had been used in the initial radiography, a CT would had been taken and the tumor would had been discovered earlier

If you would like to learn more about this subject, check the webinar Prof. Cáceres recorded explaining this cases and others! You can also check the first webinar here.