A Case Report On Unusual Mediastinal Mass

ABSTRACT A 28-year-old female, a known case of neurofibromatosis 1, presented to the respiratory medicine department with complaints of breathlessness and cough for 2 weeks’ duration. Clinical examination revealed right-sided moderate pleural effusion. Computed tomography (CT) chest revealed a large anterior mediastinal mass with chest wall infiltration. Histopathology showed neoplasm with epithelioid cells, arranged as sheets and interlacing spindle cells with a moderate amount of eosinophilic cytoplasm and inconspicuous nucleoli. Histopathological examination of excised specimen showed a malignant peripheral nerve sheath tumor with rhabdomyoblastic differentiation also known as malignant triton tumor. After palliative chemotherapy, later on follow-up, CT-guided biopsy from right side chest wall lesion also showed the same. Because of this rare presentation, we are reporting this case.