To characterize the biological features of sellar collision tumors and provide insights into their pathogenesis.
Approach:
Case Presentation: A 64-year-old female presented with fatigue, anorexia, and dyspnea, leading to the diagnosis of pan-hypopituitarism and severe electrolyte disturbances. Preoperative MRI indicated a sellar mass, and the patient underwent neuroendoscopic transsphenoidal resection. Intraoperatively, significant hemorrhage occurred due to severe adhesion and indistinguishable tumor components.
Key Findings:
The tumor was confirmed to be a collision of Null-cell adenoma and Adamantinomatous craniopharyngioma.
Intraoperative challenges included significant hemorrhage due to severe adhesion and indistinguishable tumor components.
Interpretation:
The case illustrates the diagnostic challenges of collision tumors, where imaging and surgical texture may not differentiate between tumor components, highlighting the necessity for comprehensive immunohistochemistry.
Limitations:
The rarity of sellar collision tumors limits the generalizability of findings and the availability of comparative data.
Conclusion:
This case provides critical clinical data on the diagnosis, surgical management, and prognosis of rare sellar tumors.
