title: Unusual presentation of metastatic gall bladder cancer.
abstract: To report the first case of rare isolated breast metastasis from carcinoma gall bladder. Single patient case report. A 35-year-old pre-menopausal female presented with 2 * 2 cm right upper outer quadrant breast lump. Post-mastectomy, histology confirmed it to be metastatic adenocarcinoma positive for both Cytokeratin (CK) 7 and CK20. Past history as told by the patient revealed that 2 years back, cholecystectomy was performed for gall stones, of which no histology reports were present; she had a port site scar recurrence which showed it to be adenocarcinoma. Adjuvant chemotherapy and radiotherapy was advised which the patient did not complete. This is probably the first case reported of isolated breast metastasis from gall bladder carcinoma, diagnosed retrospectively. It also highlights the importance of adjuvant treatment in gall bladder malignancy.
authors.affiliation: Department of Radiation Oncology, Institute Rotary Cancer Hospital, AIIMS, New Delhi, India.
authors.forename: Piyush
authors.initials: P
authors.lastname: Shukla
authors.forename: Soumyajit
authors.initials: S
authors.lastname: Roy
authors.forename: Vivek
authors.initials: V
authors.lastname: Tiwari
authors.forename: Bidhu K
authors.initials: BK
authors.lastname: Mohanti
mesh_terms: D000230:Adenocarcinoma / Q000175:diagnosis* / Q000556:secondary / Q000601:surgery; D000328:Adult; D001943:Breast Neoplasms / Q000175:diagnosis* / Q000556:secondary / Q000601:surgery; D005260:Female; D005706:Gallbladder Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D006801:Humans