Table 3. Characteristics of Patients With a False Negative Radioactive Iodine Seed Placement in the Axilla With Sentinel Lymph Node Biopsy (RISAS) Result (n = 5).

Age, y	Subtype	Clinical tumor status	Suspicious lymph node pre-NAC	Breast pCR
68	HR+/ERBB2−a	T2	<4	No
63	HR+/ERBB2−	T2	≥4	No
58	HR+/ERBB2+	T3	≥4	Yes
48	Triple negative	T2	≥4	No
51	Triple negative	T3	≥4	Yes

Abbreviations: NAC, neoadjuvant chemotherapy; pCR, pathologic complete response.

^a Formerly HER2 or HER2/neu.