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Dieulafoy Lesion in the Stomach

Dieulafoy disease is an uncommon cause of gastrointestinal system bleeding. Although the exact cause is not known, it is characterized by bleeding from abnormal submucosal vessels. There are many methods for diagnosis and treatment. In this case, a patient with a long-time undiagnosed stomach Dieulafoy lesion had a surgical resection. During the postoperative period the patient was discharged without any complication.

A 75-year-old woman with melena-like defecations over a three-to four-day period on a monthly basis had been evaluated at different hospitals for gastrointestinal system hemorrhage during a period of 16 years. She had been given over 100 units of blood because of low hematocrit. The patient had been suffering from bronchial asthma for 46 years and had been using levothyroxine because of total thyroidectomy 15 years earlier. Her last upper gastrointestinal system endoscopy had shown an ulceration in 2 cm bouffant floor with vessels visible in the crater proximal to the corpoantral junction in the greater curvature between the piles. Physical examination was normal except for her melena at rectal examination. Blood pressure and pulse were stable. Hematocrit was 24.4% and hemoglobin 7.77 g/dl. The erythrocyte sedimentation rate was 47 mm in the 1st hour (normal value 0-20 mm/h); gastrin was 124 pg/ml (normal value 0-150 pg/ml). After 5 units of blood transfusion, hematocrit was 33.5% and hemoglobin 10.4 g/dl. Abdominal CT scans were normal, and her tentative diagnosis were arteriovenous malformation or gastrointestinal system stromal tumor. At exploration during surgery, there was no gross pathology or free fluid in the abdomen. Intraoperative gastroscopy showed a smooth-surfaced vascular lesion with a diameter of 1.5 cm located at the front surface of the corpoantral junction ( fig. 1); a wedge resection was performed. Macroscopic examination revealed that there was a 1 cm diameter, crater-shaped mucosal erosion lined by a vascular structure ( fig. 2). After histopathologic examination, it was reported as a submucosal dilated, thrombotic vascular structure ( fig. 3). The patient's melena stopped and her hemoglobin and hematocrit values reverted to normal ranges. She was discharged healthy from hospital after the 5th postoperative day and re-examined during the 1st, 3rd and 6th months after discharge. During 7 months follow-up no recurrence of symptoms was detected.

Discussion
Dieulafoy lesion was first described by Gallard in 1884 as 'millier aneurysm of stomach'. At 1898 Dieulafoy described this as 'l'exulceratio simple'. This encompasses approximately 4% of upper gastrointestinal system hemorrhage and can cause, for example, hematemesis, hemotochezia and melena.
Dieulafoy lesion is seen infrequently and can result in life-threatening situations [1]. The lesion is generally seen in the stomach and especially within 6 cm of the gastroesophageal junction in the lesser curvature. It occurs at all ages but generally after the age of 60. Male gender is dominant. One third of cases occur outside the stomach, the duedonum and colon being commonly affected. The lesion can rupture spontaneously and without known cause, resulting in gross hemorrhage. The hemorrhage frequently comes from the submucosal eroded artery at the proximal stomach [2]. Endoscopy is used frequently in diagnosis, but unfortunately because of size and hidden location, diagnosis is difficult. The typical endoscopic view is of an artery that is located in a solitary, round mucosal defect [1]. There is no peripheral ulceration. Angiography may also be useful at diagnosis [2,3].
The treatment modalities are various [4]. Endoscopic band ligation is prevalent [5]. Surgery is an option for treatment: coagulation or vessel ligation, proximal gastric resection and wedge resection may be used. When using wedge resection, diagnosis may be confirmed with the help of pathologic-anatomic examination. In our case we chose curative surgery by wedge resection because there was chronic hemorrhaging lesion and the diagnosis was not certain.

Conclusion
Dieulafoy lesion is seen infrequently, may cause severe gastrointestinal system hemorrhage and can be difficult to diagnose. Endoscopy or surgery can be curative after diagnosis.