GIST Specialist for Nevada Patients
From Las Vegas, the surgeon who spends his week on gastrointestinal stromal tumors is a four hour drive rather than a flight. Joshua Ellenhorn, MD, FACS reviews imaging remotely first, so you only travel if it would change something.
- Four hours by road from Las Vegas on the I-15
- Clinical Professor of Surgery, Cedars-Sinai Medical Center
- Remote records review before any travel is booked
- Your Nevada oncologist keeps the medication and follow up

One of the Few Cases Where Driving Makes Sense
Most out-of-state cancer care involves flights, connections, and the particular frustration of trying to carry imaging discs through security. From southern Nevada, none of that applies. Las Vegas to the Cedars-Sinai medical plaza is roughly four hours on the I-15, and patients regularly drive over for a consultation and return the same day.
That changes the calculation in a useful way. A second opinion that costs a day of driving is a much easier decision than one that costs two flights and a hotel, which means fewer Nevada patients end up accepting a plan without checking it.
Northern Nevada is a different matter. Reno and Sparks are a flight, and for those patients the remote records review carries more weight, since the aim is to settle the clinical question before anyone books anything. Either way the sequence is the same: records first, travel second, and only if it would alter the treatment.

The Records That Determine Everything
A review is only as good as what it is based on. These are the documents that actually change decisions, and the ones most often missing.
| Document | Why it matters | How to send it |
|---|---|---|
| CT or PET imaging | The actual study, not just the report. For tumors near the pancreas the relationship to adjacent structures is measured in millimetres and does not appear in the written summary | Disc, USB, or hospital portal |
| Pathology report in full | Contains the mitotic index, which together with size and site sets your risk category and decides whether you need medication after surgery | PDF or fax from the lab |
| Mutation testing | KIT exon 11, exon 9, PDGFRA, or wild type. Determines which drug works and at what dose. Its absence is itself worth knowing about | PDF, often a separate report |
| Endoscopy or EUS report | Describes what was seen, whether the lesion was sampled, and how. Relevant to whether the capsule was disturbed | |
| Prior operative report | If you have been operated on before, this explains what was removed and how, and often explains a recurrence | PDF from medical records |
| Current medication list | Blood thinners and diabetes medication need managed timing around surgery | Typed list is fine |
If you cannot locate something, send what you have. The office can help request records from a treating hospital in Nevada.

Why GIST Is Treated Differently
GIST develops from the interstitial cells of Cajal, the pacemaker cells within the wall of the digestive tract that coordinate the contractions moving food along. It is a sarcoma rather than a carcinoma, which has direct consequences for the operation.
Because it seldom involves lymph nodes, the wide clearance a stomach or duodenal adenocarcinoma requires is usually unnecessary. A limited resection can be curative. This is the most frequent reason an operation proposed for a GIST turns out to be larger than the tumor actually warrants, and it is worth understanding before you consent to anything.
Nearly all GIST carry a mutation in KIT or PDGFRA that jams a growth signal permanently on. That fault is why a targeted tablet works here when it does very little for other sarcomas, and the specific subtype determines the drug, the dose, and whether treatment should come before the operation.
The Three Real Options
Selected by size, site, mitotic index, mutation subtype, and whether disease has spread beyond the primary.
Surveillance
Small gastric tumors with reassuring features can be monitored rather than removed. If that is the correct answer for you, it can be established from Nevada without a single trip.
Targeted Therapy
Imatinib and its successors are prescribed and monitored by your own oncologist. For a bulky tumor, a course before surgery can turn a major resection into a modest one, which also shortens the stay in Los Angeles.
Complete Resection
Removal with the capsule intact and clear margins, minimally invasive where the anatomy allows. This is the only part of the pathway that genuinely requires being here.
Watch the Operations First
Recordings of real GIST resections narrated by the surgeon who performed them. If you are deciding whether four hours of driving is justified, this answers the question better than a biography.
Laparoscopic Resection of a Gastric GIST
A gastric GIST removed through small incisions with the capsule kept intact.
Gastric GIST Resection: A Simplified Approach
A streamlined approach that shortens operating time and recovery, which matters more when you are travelling home afterwards.
Robotic Resection of a Duodenal GIST
Duodenal GIST removed robotically with the pancreas and bile duct preserved, the operation most often replaced by an unnecessary Whipple.
Recurrence Is Not the End
If a GIST removed in Nevada has come back, that is a treatable situation rather than a terminal one. Targeted therapy usually establishes control first, and liver deposits are frequently resectable afterwards.
Questions to Put to Your Nevada Surgeon
Ask these locally first. Clear answers may mean you do not need to travel at all, and vague ones tell you something too.
- How many GIST resections have you personally performed?
- What is the mitotic index on my pathology report?
- Which risk category does that put me in?
- Was mutation testing done, and what did it show?
- Can this be removed with the capsule intact?
- If this is duodenal, can the pancreas be preserved?
- Would medication before surgery make the operation smaller?
- What is my surveillance schedule, and when does it end?
Credentials Worth Checking From Out of State
Two American Board of Surgery certifications, a Cedars-Sinai teaching appointment, and membership of the societies that publish the guidelines for this disease.





- American Board of Surgery, certified in General Surgery
- American Board of Surgery, certified in Colorectal Surgery
- California State Medical License
- Florida State Medical License
Joshua Ellenhorn, MD, FACS
Dr. Ellenhorn is a surgical oncologist and Clinical Professor of Surgery at Cedars-Sinai Medical Center, and a collaborative member of the Samuel Oschin Comprehensive Cancer Institute.
Because gastrointestinal stromal tumors are uncommon, a substantial share of his operative practice comes from outside Los Angeles, frequently on referral from the patient own oncologist. Nevada is among the more straightforward of those relationships: close enough that consultations do not require a flight, and far enough that the drug therapy and surveillance sensibly stay with the home team rather than being duplicated here.
He is certified by the American Board of Surgery in General Surgery and in Colorectal Surgery, a Fellow of the American College of Surgeons, and a member of the Society of Surgical Oncology and the American Society of Clinical Oncology. He practises with the Surgery Group of Los Angeles.

What Patients Say
Reviews left by patients treated by Dr. Ellenhorn at the Surgery Group of Los Angeles.
★★★★★I was very pleased with the office staff, they were always very pleasant and helpful. I was very impressed with Dr. Ellenhorn as well. He was very friendly and addressed all my concerns regarding my surgery and aftercare and follow up.
Terry Jackson
★★★★★Very kind stuff, great service. Dr Joshua Ellenhorn is a very calm doctor who takes time with his patient.
Anita Lukacevic
Where You Would Be Treated
Consultations and surgery are at Cedars-Sinai Medical Center, with the office at 8635 W 3rd St, Suite 880W in the attached medical plaza. Imaging, pathology, and the operating rooms are in one building, which matters when your time in the city is measured in days.
From Las Vegas and Henderson, the I-15 south then west into the city is around four hours in normal conditions. Parking is in the attached structure. From Reno, Sparks, Carson City, and elsewhere in northern Nevada, flights into Los Angeles International are the practical option, roughly thirty to forty minutes from the medical centre depending on traffic.
Short stay accommodation is plentiful within walking distance of the hospital, and the office can point you to what patients most commonly use.
8635 W 3rd St, Suite 880W
Los Angeles, CA 90048
Monday to Saturday, 11:00am to 8:00pm
Closed Sunday
Frequently Asked Questions
How long is the drive from Las Vegas?
I am in Reno. Does that change anything?
Why would I not just have this done in Las Vegas?
What if I have already had surgery in Nevada and it has come back?
Can I get the medication in Nevada?
How long would I need to stay for surgery?
Do you review records before I make the trip?
Will my insurance cover out-of-state surgery?
Four Hours to Find Out If the Plan Is Right.
Send your imaging and pathology from Nevada first. If your local plan is sound you will be told so, and if it is not, you will know precisely what the alternative involves before you get in the car.