[Epidemiological, clinical features, therapeutic results and evolution of gastrointestinal stromal tumour: about 25 cases].
BACKGROUND
Gastrointestinal stromal tumors (GIST) are mesenchymal tumors occuring in the majority of cases in the stomach and small intestine, rarely in rectum, colon, esophagus or mesentery. They are derived from cells of cajal or their precursor, and are typically CD117/KIT + (95%), CD34 + (70%).


OBJECTIVE
is to study the epidemiological, clinical, therapeutic and evolution of gastrointestinal stromal tumors.


METHODS
retrospective study including all patients with the diagnosis of GIST supported in the department of gastroenterology and surgery in universital hospital of Monastir.


RESULTS
25 patients were included, 12 men and 13 women with an average age of 60.5 years. Digestive symptomatology was dominated by gastrointestinal bleeding (n = 12) and abdominal pain (n = 12). The tumor was discovered incidentally in two patients. The small intestine was the most common site of the tumor (n = 10), followed by the stomach in 9 patients, rectum in two patients, the colon (n = 1), the bulb of water (n = 1), duodenum (n = 1) and liver in a patient. The tumor size ranged from 0.8 to 24 cm. GIST was localized in 16 patients, in whom therapeutic care based mainly on surgery and optimal broad. It was metastatic in 9 patients, in whom treatment using imatinib as first-line in 4 of them with a good response in 3 patients and the possibility of R0 surgery in one patient, initial stabilization and then a secondary exhaust in a patient. The first surgery was necessary in 5 patients in complicated situation or if diagnostic doubt.


CONCLUSIONS
The best characterization of GIST thanks to advances in cancer research has led to improved treatment of these tumors. Surgery is the standard treatment in localized forms. Imatinib is the standard treatment in metastatic GIST first line as well as adjuvant after surgery.
Olfa
O
Hellara
Omar
O
Toumi
Rim
R
Hadhri
Wafa
W
Ben Mansour
Imen
I
Akkari
Adnène
A
Moussa
Nabil
N
Ben Chaabène
Hichem
H
Loghmari
Wissem
W
Melki
Fethia
F
Bdioui
Leila
L
Safer
Faouzi
F
Noomène
Abdelaziz
A
Hamdi
Abdelfattah
A
Zakhama
Hammouda
H
Saffar
D005260:Female; D046152:Gastrointestinal Stromal Tumors / Q000175:diagnosis / Q000453:epidemiology / Q000628:therapy; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D016896:Treatment Outcome