Elevation of cancer antigen 15-3 owing to oncocytic renal neoplasm in a patient without evidence of breast cancer recurrence on follow-up: a case report

Table 1 Previous reports of elevated cancer antigen 15-3 in the absence of active breast cancer

Authors and year	CA 15-3 level (U/mL)	Breast cancer history	Disease context	Ref.
Adachi et al. 2015	80	Yes	Pernicious anemia	[5]
Buonomo et al. 2019	92.6	Yes	Normal pregnancy	[6]
Aguiar-Bujanda et al. 2004	65.50	Yes	Hypothyroidism	[7]
Ghnassia et al. 2001	106	No	Renal oncocytoma	[8]
Bevan et al. 2016	448	No	Systemic lupus erythematosus	[9]
Tsiodras et al. 2018	73.9	No	Ovarian sarcoidosis	[10]
Altube Urrengoetxea et al. 2007	560	No	Idiopathic pulmonary fibrosis (male patient)	[11]

This table includes case reports of patients with or without history of breast cancer who showed elevated CA 15-3 in the absence of active breast cancer

ISSN: 1752-1947