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10846 Pathology

A 34-year-old woman has noticed a bloody discharge from the nipple of her left breast for the past 3 days. On physical examination, the skin of the breasts appears normal, and no masses are palpable. There is no axillary lymphadenopathy. She has regular menstrual cycles and is using oral contraceptives. Excisional biopsy is most likely to show which of the following lesions in her left breast?

AAcute mastitis
BFibroadenoma
CIntraductal papilloma
DPhyllodes tumor
Pathology
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10847 Pathology

A 10-year-old girl develops subcutaneous nodules over the skin of her arms and torso 3 weeks after a bout of acute pharyngitis. She manifests choreiform movements and begins to complain of pain in her knees and hips, particularly with movement. A friction rub is heard on auscultation of her chest. An abnormality detected by which of the following serum laboratory findings is most characteristic of the disease affecting this girl?

AAnti-streptolysin O antibody titer
BAntinuclear antibody titer
CCreatinine level
DRapid plasma reagin test
Pathology
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