Rare Stomach Tumor Case: 60-Year-Old Patient Has 1 in 100,000 Disease

Khaosod•Society•10d ago

Reader Briefing

A 60-year-old woman's routine check-up revealed a rare Gastrointestinal stromal tumor (Gist) in her stomach, a condition affecting 1 in 100,000 people, prompting surgery and a three-year targeted therapy.

•Dr. Manoon Leelawong presented a case of a 60-year-old female patient diagnosed with Gastrointestinal stromal tumor (Gist).
•The tumor, measuring 2 cm, was discovered during a gastroscopy and is a rare condition occurring in approximately 1 in 100,000 people.
•The patient underwent surgery to remove the tumor and is receiving a three-year course of targeted therapy with Imatinib.
•The development of Imatinib produced in Thailand by the Chulabhorn Royal Academy has significantly reduced its cost and improved accessibility.

Overview

•On June 4, 2026, Dr. Manoon Leelawong posted on Facebook about a 60-year-old patient experiencing mild anemia and blood in stool.
•The patient underwent gastroscopy and colonoscopy, with the gastroscopy revealing a 2 cm nodule in the stomach.
•A biopsy of the stomach nodule led to the diagnosis of Gastrointestinal stromal tumor (Gist).
•The patient had surgery to remove the 2.2 x 1.2 x 1.2 cm tumor from her stomach.
•Post-surgery, the patient commenced a three-year course of targeted therapy with Imatinib to prevent cancer recurrence.
•Gist is a rare cancer affecting approximately 1 in 100,000 people, with early detection and small tumor size leading to higher recovery rates.
•Professor Dr. Her Royal Highness Princess Chulabhorn Walailak provided 690,000 tablets of Im-Cra-Nip to the National Health Security Office (NHSO).
•Im-Cra-Nip, an Imatinib formulation produced in Thailand by the Chulabhorn Royal Academy, has made the drug more affordable and accessible.

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Key Quotes

Dr. Manoon Leelawong

"A 60-year-old female patient, generally healthy, no weight loss, no abdominal pain, normal stool. Came for annual check-up with normal physical examination and laboratory tests. Mild anemia Hb 11 g/dL. Found blood in stool. Recommended to undergo gastroscopy and colonoscopy."

ผู้ป่วยหญิงอายุ 60 ปี ปกติแข็งแรงดี น้ำหนักไม่ลด ไม่ปวดท้อง อุจจาระสีปกติ มาตรวจร่างกายประจำปี ตรวจร่างกายปกติ ตรวจทางห้องปฏิบัติการ เลือดจางเล็กน้อย Hb 11 g/dL พบเลือดในอุจจาระ แนะนำให้ทำการส่องกล้องกระเพาะอาหารและลำไส้ใหญ่

Dr. Manoon Leelawong

"Gastrointestinal stromal tumor 'Gist,' a cancer of connective tissue cells in the stomach wall."

Gastrointestinal stromal tumor “Gist“ หรือ”จิสต์” มะเร็งของเซลล์เนื้อเยื่อเกี่ยวพันที่อยู่ในผนังของกระเพาะอาหาร

Dr. Manoon Leelawong

"Gist is a rare disease, found about 1 in 100,000 people. If found early and the tumor size is small (2 cm), the chance of spreading to the liver or peritoneum decreases, and the chance of a full recovery is high."

โรค Gist เป็นโรคหายาก พบประมาณ 1 ในแสนคน ถ้าพบเร็ว ขนาดเนื้องอกเล็ก 2 เซนติเมตร โอกาสกระจายไปตับ เยื่อบุช่องท้องลดลง และโอกาสหายขาดสูง

Key Entities

Person

Dr. Manoon(หมอมนูญ)

A specialist in respiratory diseases at Vichaiyut Hospital who presented the case of a rare Gist tumor.

Dr. Manoon Leelawong(นพ.มนูญ ลีเชวงวงศ์)

A specialist in respiratory diseases at Vichaiyut Hospital who presented the case of a rare Gist tumor.

Professor Dr. Her Royal Highness Princess Chulabhorn Walailak(ศาสตราจารย์ ดร. สมเด็จพระเจ้าน้องนางเธอ เจ้าฟ้าจุฬาภรณวลัยลักษณ์)ℹ️

Royal patron who donated 690,000 tablets of Im-Cra-Nip to the NHSO.

Organization

Vichaiyut Hospital(โรงพยาบาลวิชัยยุทธ)

The hospital where Dr. Manoon Leelawong practices.

Chulabhorn Royal Academy Pharmaceutical Manufacturing Plant(โรงงานผลิตเภสัชภัณฑ์ในพระดำริ ราชวิทยาลัยจุฬาภรณ์)

The facility that produces the Thai-manufactured Imatinib (Im-Cra-Nip).

National Health Security Office (NHSO)(สำนักงานหลักประกันสุขภาพแห่งชาติ)ℹ️

The recipient of the donated Im-Cra-Nip tablets.

Law

Imatinib(อิมาตินิบ)ℹ️

A targeted therapy drug used to treat Gist and chronic myeloid leukemia.

Im-Cra-Nip(อิมครานิบ)

The Thai-produced brand of Imatinib, manufactured by the Chulabhorn Royal Academy.