Metastatic Alveolar Rhabdomyosarcoma with Extensive Bone Marrow Replacement in an Older Adult

Area of Science:

• Oncology
• Pathology

Background:

• Rhabdomyosarcoma is a rare soft tissue sarcoma, particularly in adults.
• Metastatic rhabdomyosarcoma can present with non-specific symptoms, complicating early diagnosis.

Observation:

• A 67-year-old woman presented with epistaxis, bone pain, and progressive thrombocytopenia.
• Initial symptoms suggested a primary bone marrow malignancy like leukemia.
• Imaging revealed a sinonasal mass with extensive metastatic disease and bone marrow infiltration.

Findings:

• The patient was diagnosed with metastatic alveolar rhabdomyosarcoma.
• Alveolar rhabdomyosarcoma can exhibit bone marrow infiltration, mimicking primary hematologic malignancies.
• The patient received chemotherapy but unfortunately died prior to discharge.

Implications:

• This case underscores the importance of considering rare diagnoses in adult oncology.
• Early recognition of metastatic alveolar rhabdomyosarcoma is crucial for timely and effective treatment.
• Further research is needed to improve the clinical management and diagnostic strategies for this rare cancer.