Final answer:
The symptoms described are indicative of mastitis, a condition where breast tissue becomes inflamed, often due to infection, and it is characterized by swelling, redness, and warmth in a wedge-shaped pattern along with systemic symptoms like fever and chills.
Step-by-step explanation:
The symptoms presented in the question are indicative of mastitis, which is an inflammation of breast tissue that sometimes involves an infection. The main characteristics of mastitis include wedge-shaped swelling, redness, warmth, and tenderness of the breast, often accompanied by fever and chills. This condition is common during breastfeeding but can also occur outside of lactation. The hormonal fluctuations in the menstrual cycle and pregnancy can lead to swelling and breast tenderness, but these are not typically associated with the acute symptoms of mastitis.
The other conditions listed do not match the presented symptoms: a breast abscess is a localized collection of pus within the breast tissue; a fibroadenoma is a benign breast tumour that does not cause the systemic signs of infection; and inflammatory breast cancer is a rare form of breast cancer that progresses rapidly, causing redness, swelling, and dimpling of the skin.
Therefore, the answer is A) Mastitis.