Table 1.

Pulmonary metastases presenting as SSNs reported in the literature (last 15 years).

Authors	Year	Number of SSNs	Primary cancer
Okita R et al [5]	2005	Multiple	Melanoma
Yanagawa et al [20]	2006	Single	Spindle cell carcinoma (kidney)
Kang MJ et al [6]	2010	Single	Melanoma
Mizuuchi H et al [7]	2015	Single	Melanoma (bulbar conjunctiva)
Dal Piaz G et al [8]	2018	Single	Melanoma
Sakamoto et al [21]	2018	Single	Cholangiocarcinoma
Lubin DJ et al [22]	2019	Single	Prostate
Borghesi A et al [9]	2019	Single*	Melanoma
Present case	2019	Multiple	Malignant epithelioid schwannoma (soft tissue of the arm)

^*In this case report, the patient exhibited two pulmonary metastases (one subsolid and the other solid). SSNs, subsolid nodules.