Primary tubercular mastitis mimicking carcinoma breast-a case report with review of literature

Primary breast tuberculosis is an uncommon form of entity. A 60 year-old female, presented with a lump in lower outer quadrant of breast. She had also a history of intermittent yellowish discharge from nipple. No co-morbid condition or any family history. Primary breast tuberculosis was diagnosed on fine needle aspiration cytology wherein ZN stain for acid fast bacilli was positive. The patient received antitubercular drugs and at one month follow up the swelling had resolved and the patient was asymptomatic. Breast tuberculosis is a rare disease with non-specific clinical, radiological, and histological findings. Misdiagnosis is common as biopsy specimens are pauci-bacillary and investigations such as microscopy and culture are frequently negative.