Table 4.

Timing and locations of distant metastasis by primary tumor site

Primary tumor site	Metastasis site	Synchronous metastasis n (%)	Metachronous metastasis n (%)
Thymic carcinoid n = 9	Lung/mediastinum	0	3
	Bone	0	2
	Lymph nodes	0	1
	Other (brain)	0	1
	Lung/mediastinum and bone	1	1
	Lymph nodes and bone	1	0
	Total number of patients with metastasis from thymic carcinoid at any site	2 (22.2)	8 (88.9)
PNET n = 5	Lung	0	0
	Bone	0	1
	Liver	0	1
	Other (abdominal lymph nodes)	0	1
	Lungs and bone	1	0
	Liver and bone	0	1
	Total number of patients with metastasis from PNET at any site	1 (20.0)a	4 (80.0)b

^aOne patient had synchronous lung and bone metastasis

^bOne patient had metachronous metastasis to liver and bones