1.Atypical metastatic presentation of sporadic clear cell renal cell carcinoma: Anindolent unilateral intranasal mass in a 60-year-old male with recurrent epistaxis.
Eldimson BERMUDO ; Jon Paolo TAN ; Randell ARIAS ; Al-zamzam ABUBAKAR
Philippine Journal of Pathology 2025;10(1):37-42
Renal cell carcinoma (RCC) is notorious for its propensity to metastasize even after a prolonged period of remission following nephrectomy. The metastatic spread can occur months or even years after initial treatment, which necessitates a heightened level of clinical awareness and vigilance in patients with a history of renal malignancy, particularly who present with new or unexplained nasal symptoms. Although RCC most commonly metastasize to the lungs, bones and liver, its involvement in the nasal cavity is exceedingly rare, posing significant diagnostic challenges due to the non-specific nature of symptoms. We describe a case of metastatic renal cell clear cell carcinoma presenting with recurrent epistaxis and unilateral nasal obstruction. Immunohistochemistry studies play a crucial role in confirming the diagnosis and ruling out potential differential diagnoses, along with a comprehensive clinical history of the patient.
Human ; Male ; Middle Aged: 45-64 Yrs Old ; Clear Cell Renal Cell Carcinoma ; Carcinoma, Renal Cell ; Metastasis ; Neoplasm Metastasis ; Nasal Cavity ; Epistaxis