Interactive Transcript
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So let's look at a video of an actual IR performing
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an image guided bone biopsy.
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So this is a 64 year old female with past
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medical history of chronic severe anemia malnutrition and
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no prior cancer screening who not presents with about one month
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of increasing fatigue and intermittent bright red blood in the
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stool with Associated diarrhea. So this week the patient
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notice Rapidan said growth on her left clavicle.
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She went to a primary care physician where she was found out the
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hemoglobin of 2.9 and then she was
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referred to the emergency room. Here. We see the patient.
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in an image to the right
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Here we see an initial in the region of
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her Delta vectoral groove on the left by the
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operator ensuring that the site was marked. And
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this was one of the important things that are noted during
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the timeout that site is marked.
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As noted by The Operators initials
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to the left. And then what we see here is also the
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region where this individual
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has a little bit of a protuberance in their
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left clavicle.
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The vital signs for the person is stable.
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They have a little shoddy cervical and vaginopathy.
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They have a 5 by 5 centimeter firm non-modalamas
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hemoglobinous 3.1.
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And what we notice is there's a little bit of a low ferritin.
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So the patient was given one unit of packed red blood cells
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as a result.
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As far as Imaging is concerned and non-contin CT of
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the chess abdomen pelvis was then requested.
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So what do we see in?
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the reading room
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Here we see a coronal CT of the chest.
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So what catches your eye?
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So what do we see here on this axial?
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CT of the chassis lucency with
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a bit of moth eating the parents in the region of the
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left clavicular head. We see some Regional
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swelling which corresponds to the silent
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question on clinical examination.
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And so what is our impression is erosion of the left clavicular
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head with Associated super sternal soft tissue,
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Mass.
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And that can be seen here as well in this
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particular region.
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And so as we move through there are
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also scattered hypodensities throughout the liver that were
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incompletely characterized.
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But metastatic disease is not excluded.
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So what are the next steps that we want to take So the
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patient's case is discussing the interdepartmental conference
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and it's agree that our clavicular Mass may
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actually represent metastasis, which is a little concerning. But
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this also thought that perhaps this could be a workout node
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in that region a supercovicular node.
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That's enlarge possibly from a primary GI
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cancer. She's then schedule for CD got it
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biopsy of the lesion.
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So now that we're in the room, what are our procedural steps?
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So the radiologist places the radio pick grid with the radio
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pick markers oriented in
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a cranial card at Direction. The Radiologists achieves
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a scout of the area. Then
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three separate numbers that
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are in particularly important for us to triangulate the needle approach then
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documented.
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So what do we see?
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So this is our initial Scout. We
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have our radio pick grid. We
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see our little markers in question. We then
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select our route specifically from
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that third marker from a
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medial approach.
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To that clavicular head and then
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once that lateral grid position closest to
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the patient's lesion is made.
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We then make note of the depth how many
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centimeters in question from the skin marker to the
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actual lesion in question.
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And then once we move back into the room, we want to
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identify the exact City slice where that
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lesion is best visualize that corresponds to that
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particular location that we selected.
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So this is that location radio pick marker.
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Now we want to actually use a skin marker to
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identify that site. So what we have
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we have the lesion documented we have the actual marker
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on the grid third medial marker.
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And then we have the city slice level three very
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important pieces of information that allow
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us to correlate the image to the anatomic Landmark
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to allow us to then begin our biopsy.
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Here we're performing a line.
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drawing on the patient's skin
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to ensure that we know exactly where we want
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to biopsy from.
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So what comes next?
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So the side of the entry is sterilized with chlorhexidine and
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antiseptic.
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And so what?
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The proceduralist is doing is cross hatching motion
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using the chlorhexidine swab.
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The radiologist then performs eight
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four tall Border in order to
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localize and canvas the Aryan
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question.
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So the four towel sterile board is placed around the sterilized area
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with the site marked.
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So let's look at our table. We have our lidocaine needle
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the biopsy needles the sample container with
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our sterile saline in which we're going to place our sample
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in after it's been harvested.
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We have Betadine in order to clean
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the needle in question after if it's been
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placed in formalin, for example
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So the biopsy needle is then prepared and loaded.
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And what we see here is the introducer.
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We see the biopsy needle we say the sharp style
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at then attached to the introducer.
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So let's look here. The next step for us is to now
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take that depth that intended depth and
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then Mark that on our introducer so we
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know exactly the depth to which we are then entering.
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So that appropriate biopsy depth is marked on the needle Pride
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insertion.
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So now we take our procedural steps a bit further. So
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what we want to do now is to anesthetize the skin
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with 1% or 2% lidocaine. We
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then want to advance that needle to the
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area of concern perhaps as I mentioned before to
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the periosteum and then from there we want to leave the
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needle in place.
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So here the operator has hit
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bone.
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It stopped and then leaves the needle in place.
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That needle in place is then identified to
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be in plain.
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And then once it's left in place this acts
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as a guide for the placement of the biopsy needle which
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then is placed almost juxtapose to
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the site where the lidocaine needle was placed.
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And then once that's inappropriate position
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lidocaine needle is then removed.
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So what happens next?
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so the lidocaine needle
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as we saw was removed the introducing needle
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for the biopsy needle is Advanced using the CT lays
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indicate as a guide here. We see the laser pointer
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directly on the needle shows that it's in plane so
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that you'll be able to see the needle the entire time as it's being advanced.
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So what do we do next Once the
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biopsy needle has actually been stabilized.
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We then Advanced the biopsy needle through the Hub
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to the Aryan question.
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And then perform the biopsy.
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Once we remove the sample,
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we evaluate it in the tree in
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order to ensure that we actually have a sample of
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note inspect. It sure that it's grossly adequate
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that's then placed into the sample medium
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and then given to our nurse or
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outsideopathologists if they're on site.
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Once the exposed biops you need let's place in the
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fluid in this particular case. The needle is
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being placed into formalin and this
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formulin is non-sterile.
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So in a case where the needle is
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being made to be in contact with something, that's not sterile.
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What would need to happen is that needle would then need to be disinfected
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perhaps with Betadine, which is also in addition
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to being an antiseptic drying agent.
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The fluid of course that we're choosing could be formalin.
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Could be a cytofluid which would be sent to
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cytology. It could be rpmi if we suspect lymphoma or
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it could be saline in each case. We may suspect
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infection.
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Here is an example of the operator rinsing
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the needle tip in Betadine to sterilize
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the needle then reintroduce for another biopsy pass.
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So here we have the fluid which is
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aspirated from the side for additional analysis in which
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case this is microbiology cultures.
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This is a little bit of an agitation Motion in order
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to get a sample. That would be appropriate to be
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placed in Saline now.
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Not formalin to be submitted for microbiology
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analysis.
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So once the entry site is revealed after
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the introducer has been removed from the body and adhesive
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bandages then placed over the site. No hematoma
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formation. No losing from the site the
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patient is then okay to then transport to the
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recovery room.
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So in conclusion the path analysis actually for the patient's biopsy
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demonstrated chronic inflammatory changes, there wasn't
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any evidence of malignancy.
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The culture results were actually negative as well.
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And the patient was discharged without any other additional issues
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in order to ensure that this was
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not a GI cancer and that was not missed the patient
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had outpatient workup with their GI doctor
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and as recommended by their oncology
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physician the patient also had
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evidence of severe iron deficiency. Anemia
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That Was Then ultimately managed as well.