No.	Recommendations/ Statements	EG	LoE	Sources
5.1.	Patients should be informed about the clinical signs of recurrence.	B	Adapted from guideline	89
5.2.	In asymptomatic patients, no other diagnostic methods should be carried out in addition to the standard methods recommended for follow-up.	B	Adapted from guideline	89
5.3.	As with primary breast cancer, imaging to clarify a suspicion of local/loco-regional recurrence must consist of mammography and breast ultrasound. (A) Breast MRI should be used if, after considering the patientʼs level of risk, it is not possible to make a sufficiently certain diagnosis using other methods. (B)	A/B	Adapted from guideline	90
5.4.	Breast ultrasound and minimally invasive biopsy methods are suitable methods for the primary histological clarification of loco-regional recurrence.	B	Adapted from guideline	73
5.5.	If there is a suspicion of distant metastasis, suitable diagnostic methods can be used to exclude the suspicion. Staging based on imaging must be carried out in patients newly diagnosed with breast cancer and a clinical suspicion of metastasis. Procedures used for staging must include contrast-enhanced CT (of the thorax, abdomen and pelvis) and a bone scan.	A	Adapted from guideline	88
5.6.	PET-CT should only be used if the use of other methods has led to a strong suspicion of distant metastasis in symptomatic patients and this metastasis cannot be reliably confirmed or excluded.	B	Adapted from guideline	88