GIST Specialist for Studio City, CA
Most gastrointestinal stromal tumors are found because of bleeding, and most of that bleeding is invisible. If unexplained anemia or a dark stool led to your diagnosis, Joshua Ellenhorn, MD, FACS is fifteen minutes down Laurel Canyon.
- Assessment of bleeding GIST, urgent and non urgent
- Clinical Professor of Surgery, Cedars-Sinai Medical Center
- One of the shortest drives from the Valley to Cedars-Sinai
- Coordination with the gastroenterologist who found it
Bleeding You Cannot See
A GIST starts inside the wall of the stomach or intestine, not on its surface. As it grows, it can erode through the inner lining, and that raw surface bleeds into the passage of the bowel.
Usually slowly. Slowly enough that nothing is visible, and the first evidence is a blood count taken for an unrelated reason showing iron deficiency. Patients frequently describe months of tiredness they attributed to work, or a shortness of breath climbing stairs they put down to age. Then a routine panel finds a haemoglobin that should not be that low, and a workup begins.
Sometimes it is not slow. A tumor that erodes into a larger vessel produces black tarry stools or vomited blood, and that is an emergency department the same day rather than a clinic appointment.
The distinction matters because it determines what happens next. Brisk bleeding needs stabilising first, then proper planning. Slow bleeding needs a considered workup, not a scramble. Conflating the two leads either to unnecessary panic or to a rushed operation that could have been better designed.
What Is Actually Growing There
GIST arises 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 puts it in a different category from the stomach and bowel cancers most people picture.
Its position within the wall explains almost all of its behaviour. It grows outward, so it can become large without obstructing anything. It hides from a standard endoscope, which sees only a smooth bulge under normal lining. And when it does cause trouble, erosion and bleeding is the usual mechanism rather than blockage.
Nearly all carry a KIT or PDGFRA mutation that leaves a growth signal permanently switched on. That same fault is why targeted tablets work against GIST when they do very little for other sarcomas, and why the mutation subtype determines which drug and what dose.
Finding the Source of the Bleeding
An upper endoscopy and colonoscopy come first in most anemia workups, and for a gastric GIST the endoscopy usually finds the bulge. Small bowel tumors are harder, since they sit beyond the reach of both instruments, which is why a patient can have two normal scopes and still be bleeding from a GIST.
Cross sectional imaging is what closes that gap. Contrast CT of the abdomen and pelvis finds most small bowel tumors and simultaneously stages the disease, looking at the liver where GIST tends to spread. Capsule endoscopy occasionally has a role when the source remains elusive.
Endoscopic ultrasound allows the deeper layers of the wall to be assessed and sampled where tissue is needed, with control that matters because rupturing the capsule spreads tumor cells. Where imaging is characteristic and the tumor is clearly resectable, going directly to surgery often gives better information anyway.
What Happens to a Bleeding GIST
Bleeding tends to push a tumor out of the surveillance category, but it does not dictate how quickly or how extensively you operate.
Stabilise First
Endoscopic treatment, embolisation, and transfusion control an acute bleed. These are bridges rather than cures, but they convert an emergency into a situation where a properly planned operation is possible.
Correct, Then Resect
Iron infusion or transfusion to correct the anemia, full staging, then a planned resection. Operating on a significantly anemic patient adds risk that a few weeks of preparation removes.
Definitive Removal
Complete resection with an intact capsule, laparoscopically for most gastric tumors, or a short segmental resection for small bowel disease. Adjuvant imatinib follows where the risk grading calls for it.
The Operations on Record
Recordings of real GIST resections narrated by the surgeon who performed them. A more useful measure than any general claim about experience.
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 refined technique that shortens operating time and recovery.
Robotic Resection of a Duodenal GIST
Duodenal GIST removed robotically with the pancreas and bile duct preserved.
A Rushed Operation for a Slow Bleed
Chronic anemia from a GIST feels alarming and rarely is, in the immediate sense. There is usually time to correct the blood count, stage properly, and design the right operation. Take it.
Certifications and Appointments
Two American Board of Surgery certifications, a Cedars-Sinai teaching appointment, and membership of the societies that set standards 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. He is regarded as one of the leading GIST surgeons in the United States.
His practice concentrates on complex abdominal cancers and gastrointestinal stromal tumors rather than general surgery broadly, which is why gastroenterologists across the Valley refer patients here once a bleeding source turns out to be a GIST.
He is certified by the American Board of Surgery in General Surgery and 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
From Anemia to Answer
Send the Workup
Call (310) 356-3792 or book online, then forward endoscopy and colonoscopy reports, CT imaging, and your blood counts. The trend in haemoglobin over time is genuinely informative here.
Establish Urgency
You should leave knowing whether this needs treating within days or within weeks, whether your anemia needs correcting first, and what the operation involves.
Resect and Recover
Most gastric resections are laparoscopic and short. The anemia resolves over the following months, and your Studio City gastroenterologist receives the pathology and operative findings.
Fifteen Minutes Down the Canyon
Laurel Canyon south from Ventura Boulevard to Sunset, then down Fairfax to 3rd Street, is the shortest run and usually the quickest. Coldwater Canyon to Beverly Drive and east is the alternative when Laurel is congested. From the eastern end of Studio City, Cahuenga to Highland and south also works.
Studio City is among the closest Valley neighbourhoods to the office, which sits in the medical plaza attached to Cedars-Sinai Medical Center. Imaging, pathology, and the operating rooms are in one building, so a workup that would otherwise mean several trips over the hill usually means one.
Patients travelling from outside the region, including Arizona and Nevada, can have imaging and pathology reviewed remotely beforehand.
8635 W 3rd St, Suite 880W
Los Angeles, CA 90048
Monday to Saturday, 11:00am to 8:00pm
Closed Sunday
Frequently Asked Questions
Is a bleeding GIST an emergency?
Why does a GIST bleed at all?
I was told I have a GIST after an emergency admission. What now?
Should the tumor be removed urgently if it has bled once?
Can bleeding be stopped without surgery?
How far is your office from Studio City?
Will I need a transfusion?
What happens to the anemia after the tumor is removed?
Unexplained Anemia Deserves an Explanation.
If a workup in Studio City has traced slow blood loss to a gastrointestinal stromal tumor, the next step is a specialist assessment of how urgent it is and what the right operation looks like.
