Endometrioid Endometrial Carcinoma With Spindle Cells-Aberrant p16 and p53 Expression

Area of Science:

• Gynecologic Pathology
• Oncology
• Surgical Pathology

Background:

• Endometrioid endometrial carcinoma exhibits morphological diversity, sometimes complicating diagnosis.
• Spindle cell differentiation in this cancer type presents a diagnostic challenge.
• Postmenopausal bleeding is a common symptom requiring thorough investigation.

Observation:

• A 65-year-old woman presented with postmenopausal bleeding and a cervical mass.
• Pathologic examination revealed endometrioid endometrial carcinoma with spindle cell features.
• The tumor originated within an endometrial polyp.

Findings:

• This case demonstrated p16 and p53 overexpression.
• Previous reports indicated nonaberrant p16 and p53 expression in similar tumors.
• The findings suggest a spectrum of immunohistochemical profiles in this entity.

Implications:

• The immunohistochemical findings expand the understanding of endometrioid carcinoma with spindle cell differentiation.
• Recognizing this spectrum is crucial for accurate diagnosis and patient management.
• Further research may elucidate the clinical significance of p16 and p53 overexpression in these tumors.