TY - JOUR AU - Borhan, Marisa Khatijah AU - Tan, Florence Hui Sieng AU - Awang Basry, Nur Shazwaniza PY - 2022/06/16 Y2 - 2024/03/28 TI - Collision of Two Tumors: A Case Report of a Lung Adenocarcinoma With Metastasis to a Pituitary Adenoma JF - Journal of the ASEAN Federation of Endocrine Societies JA - J ASEAN Fed Endocr Soc VL - 37 IS - 2 SE - Case Reports DO - 10.15605/jafes.037.02.09 UR - https://asean-endocrinejournal.org/index.php/JAFES/article/view/1633 SP - 89-94 AB - <p>Acollision tumor involving metastasis to a pituitary adenoma is rare. We describe a case of a 68-year-old Bidayuh woman with underlying treatment-responsive lung adenocarcinoma, who presented with mass effect, panhypopituitarism and polyuria. Her initial imaging study reported pituitary macroadenoma, and she was treated with hormone replacement therapy. She then underwent transsphenoidal tumor debulking surgery with subsequent histopathological findings of a collision tumor of an adenocarcinoma with metastasis to a non-functioning pituitary adenoma.</p> ER -