was first reported by a French pathologist, Chomel in 1710  and diagnosed radio-logically by Case  in 1913.
With further mobilization of the duodenum, a perforated duodenal diverticulum
was noticed in the third part of the duodenum.
We present a case of an elderly patient with a perforated duodenal diverticulum
and subtle evidence of pneumoretroperitoneum on the initial supine abdominal X-ray.
The first reported case was that by Chomelin J in 1710 in Historie de l'Academie Royal in an autopsy report with a duodenal diverticulum
 2 Penetrating 50% postpyloric ulcer Ampullary tumor PPC with PPA Present study 5 Duodenal diverticulum
angiodysplasia Duodenal metastases 20% of colon cancer Duodenal varices Locally advanced gastric cancer
In our case, we hypothesize that the duodenal diverticulum
has fundamental role since it propitiates food stasis and provides an adequate location for the toothpick to twine on.
A few causes of false-positive findings in blunt duoden1 injury imaging include: 1) duodenal diverticulum
simulating retroperitoneal air, 2) retroperitoneal hematoma from a nonduodenal source, and 3) unopacified bowel loops adjacent to the duodenum which may obscure subtle findings.
This duodenal diverticulum
obstructive jaundice syndrome is called Lemmel's syndrome .
Inverted duodenal diverticulum
is an infrequent congenital abnormality that usually is not symptomatic but can become, generally in adult life.
Perforation of a duodenal diverticulum
secondary to blunt abdominal trauma is even more unusual; only 23 cases have been reported.
In addition to the classic periampullary location, GPs have been reported in the pylorus, jejunum, and appendix. One case was associated with a duodenal diverticulum
. Some GPs have been associated with neurofibromatosis. Most cases range from 1 to 3 cm, although a 10-cm example has been reported. Although the majority of GPs behave in a benign fashion, rare examples of malignant GPs have been documented. The metastases usually contain the endocrine component of the tumor.
A 69-year-old male with a remote history of laparoscopic Roux-en-Y gastric bypass 4 years earlier and a known duodenal diverticulum
presented to the emergency department for bilateral upper quadrant abdominal pain for several weeks that had progressed rapidly to constant nausea, abdominal distension, and food intolerance.