Solitary Peutz-Jeghers type hamartomatous polyps in the duodenum are not always associated with a low risk of cancer: two case reports

Table 1 Twenty-seven cases of solitary duodenal Peutz-Jeghers type hamartomatous polyps.

Author	Year	Number of patients	Age	Sex	Location	Surface	Size (mm)	Treatment	Malignant transformation
Gannon [6]	1962	6	NS	NS	NS	Smooth	NS	NS	No
Shiegel [7]	1978	1	75	NS	2nd	Smooth	NS	surgery	No
Ushijima [8]	1986	1	46	M	2nd	Lobulated	20 × 20 × 15	endoscopy	No
Bott [9]	1986	1	23	M	4th	NS	50 × 40	surgery	No
Naitoh [10]	1988	1	56	F	3rd	Smooth	30 × 15	endoscopy	No
Rossetti [11]	1989	1	22	F	2nd	Smooth	50	endoscopy	No
Tanaka [12]	1990	2	41	M	3rd	Lobulated	25 × 18	endoscopy	No
			82	F	2nd	Lobulated	25 × 20	endoscopy	No
Nebri [4]	1993	1	63	F	1st	NS	50 × 35	surgery	No
Ichiyoshi [13]	1996	1	84	F	2nd	Lobulated	25 × 20	endoscopy	Yes
Oncel [14]	2003	2	68	F	3rd	NS	15	endoscopy	No
			53	M	2nd	Multiple polyps	5	endoscopy	No
Kitaoka [5]	2004	1	22	F	1st	Lobulated	35 × 30 × 30	endoscopy	No
Itaba [15]	2006	2	87	F	2nd	NS	17	endoscopy	No
			56	M	1st	Lobulated	12	endoscopy	No
Suzuki [16]	2008	3	59	F	2nd	Lobulated	15 × 15	surgery	No
			68	F	2nd	Lobulated	10 × 8	endoscopy	Yes
			60	F	1st	Lobulated	10 × 10	endoscopy	No
Jamaludin [17]	2009	1	46	M	1st	Lobulated	70 × 40	surgery	Yes
Kantarcioglu [18]	2009	1	28	M	2nd	Lobulated	25 × 15	endoscopy	No
Sekino: our report	2010	2	84	M	2nd	Lobulated	16 × 13	endoscopy	Yes
			76	M	2nd	Lobulated	15	endoscopy	No

ISSN: 1752-1947