24 April 2025
: Case report 
Multiple Myeloma Presenting as Breast Metastasis: Diagnostic Challenges and Case Analysis
Challenging differential diagnosis, Unusual setting of medical care, Rare disease
Gloria Messina ABCDEF 1, Maria Antonia Fucile ABCDEF 1, Marianne Kupper ABDE 2, Marco Campitiello ADEF 2, Francesca Plastino AF 2, Pierre-Olivier Legros ABF 2, Julie Egea
ABEF 2, Philippe Carassou ABDEF 3, Giampaolo Tortora ADEF 1, Raffaele Longo ABCDEF 2*
DOI: 10.12659/AJCR.945853
Am J Case Rep 2025; 26:e945853
Figure 2. (A) Multiple, nodular lesions in the right breast, without any axillary lymph node involvement or pathological microcalcifications. A lesion of 14 mm in diameter was located in the upper-inner quadrant and the other 3 lesions were located at the intersection of the internal quadrants of the right breast (red arrows; mammography). (B, C) Hypermetabolic lesion of the external lower (B) and the upper-inner (C) quadrant of the right breast (red arrows; 18F FDG-PET-CT scan, axial section). 18F FDG – 2-deoxy-2-[fluorine-18] fluoro-D-glucose; PET – positron emission tomography; CT – computed tomography.