Peutz—Jeghers syndrome

Dew3:

There is a congenital condition which presents with acute onset of abdominal pain, vomiting, and abdominal distention in adolescents.

Peutz–Jeghers syndrome, an autosomal dominant disorder characterized by the development of multiple hamartomatous gastrointestinal polyps, mucocutaneous pigmented lesions on the lips or buccal mucosa, and an increased risk of cancer within and outside the gastrointestinal tract.