La duplicación gástrica en el adulto: una entidad desconocida dentro del espectro de lesiones submucosas gástricas / Adult gastric duplication: an unknown condition within the spectrum of gastric submucosal lesions

Introducción: La duplicación gástrica es una entidad poco frecuente en el adulto que supone solo el 4-8% del total de las duplicaciones gastrointestinales. Consiste en una tumoración quística en el espesor de la pared gástrica rodeada de capa muscular lisa y revestida por mucosa gástrica. Suele ser asintomática, pudiendo presentar síntomas abdominales inespecíficos, así como complicaciones del propio quiste como hemorragias digestivas, úlceras e incluso episodios de pancreatitis. Son difíciles de diferenciar del resto de lesiones submucosas gástricas, ya que pueden simular una tumoración gastrointestinal (GIST) e incluso un quiste mucinoso pancreático. La ecografía endoscópica destaca como método diagnóstico, sin embargo, el diagnóstico definitivo es histológico. Caso clínico: Presentamos el caso de una paciente mujer de 36 años de edad con antecedentes de un episodio de úlcera gástrica perforada 'contenida' que fue manejado de forma conservadora. En la actualidad es diagnosticada de un GIST gástrico, motivo por el cual es intervenida y se le realiza una gastrectomía subtotal laparoscópica con reconstrucción en Y de Roux con buena evolución postoperatoria. Discusión: El diagnóstico histológico definitivo informa de una duplicación gástrica, por lo que el antecedente de úlcera gástrica perforada 'contenida' presentado por la paciente se corresponde con una complicación de la propia duplicación gástrica (AU)

Background: Gastric duplication is an uncommon condition in adults representing only 4-8% of all gastrointestinal duplications. It develops as a cystic growth within the thick gastric wall that is surrounded by a layer of smooth muscle and lined with gastric mucosa. It is usually asymptomatic but may present with nonspecific abdominal symptoms as well as cyst-related complications such as gastrointestinal (GI) bleeding, ulceration and even pancreatitis. They are difficult to distinguish from other gastric submucosal lesions and may also mimic a gastrointestinal tumor (GIST) or mucinous cyst of the pancreas. Endoscopic ultrasound (EUS) is the most widely used diagnostic procedure and histology provides a definitive diagnosis. Case report: We report the case of a 36-year-old female patient with a history of a 'contained' perforated gastric ulcer that was managed conservatively. The patient was diagnosed with a gastric GIST which prompted a laparoscopic subtotal gastrectomy and Roux-en-Y reconstruction with a good postoperative outcome. Discussion: The definitive histological diagnosis was gastric duplication. Thus, the previous diagnosis of a 'contained' perforated gastric ulcer was in fact a complication of the gastric duplication itself (AU)

Adult gastric duplication: an unknown condition within the spectrum of gastric submucosal lesions.

BACKGROUND: Gastric duplication is an uncommon condition in adults representing only 4-8% of all gastrointestinal duplications. It develops as a cystic growth within the thick gastric wall that is surrounded by a layer of smooth muscle and lined with gastric mucosa. It is usually asymptomatic but may present with nonspecific abdominal symptoms as well as cyst-related complications such as gastrointestinal (GI) bleeding, ulceration and even pancreatitis. They are difficult to distinguish from other gastric submucosal lesions and may also mimic a gastrointestinal tumor (GIST) or mucinous cyst of the pancreas. Endoscopic ultrasound (EUS) is the most widely used diagnostic procedure and histology provides a definitive diagnosis. CASE REPORT: We report the case of a 36-year-old female patient with a history of a "contained" perforated gastric ulcer that was managed conservatively. The patient was diagnosed with a gastric GIST which prompted a laparoscopic subtotal gastrectomy and Roux-en-Y reconstruction with a good postoperative outcome. DISCUSSION: The definitive histological diagnosis was gastric duplication. Thus, the previous diagnosis of a "contained" perforated gastric ulcer was in fact a complication of the gastric duplication itself.