title: Primary Renal Rhabdomyosarcoma: An Unusual Bone Metastasizing Tumor of Kidney.
abstract: Rhabdomyosarcoma (RMS) is one of the common malignant tumors in the pediatric age group. There is only a single case report of primary renal alveolar RMS. Fine needle aspiration (FNA) findings of primary renal RMS has not been reported so far. Hence we present an unusual case of primary alveolar RMS of the kidney. An 11 year old boy presented with an abdominal mass. On FNA a diagnosis of undifferentiated sarcoma and anaplastic Wilms tumor were considered. The tumor was resected and showed histopathological features of alveolar rhabdomyosarcoma. He developed multiple bony metastases and succumbed to the illness despite aggressive chemotherapy. RMS of the kidney should be considered in the differential diagnosis of children with a renal mass, and may have an aggressive clinical course with bone metastases.
authors.affiliation: a Department of Pathology , Institute of Post Graduate Medical Education and Research , Kolkata , India.
authors.forename: Shabnam
authors.initials: S
authors.lastname: Parvin
authors.affiliation: a Department of Pathology , Institute of Post Graduate Medical Education and Research , Kolkata , India.
authors.forename: Ranajoy
authors.initials: R
authors.lastname: Ghosh
authors.affiliation: a Department of Pathology , Institute of Post Graduate Medical Education and Research , Kolkata , India.
authors.forename: Ram Narayan
authors.initials: RN
authors.lastname: Das
authors.affiliation: b Department of Pediatric Surgery , NRS Medical College , Kolkata , India.
authors.forename: Koushik
authors.initials: K
authors.lastname: Saha
authors.affiliation: c Department of Pathology , Tata Medical Centre , Kolkata , India.
authors.forename: Paromita
authors.initials: P
authors.lastname: Roy
authors.affiliation: a Department of Pathology , Institute of Post Graduate Medical Education and Research , Kolkata , India.
authors.forename: Chhanda
authors.initials: C
authors.lastname: Datta
authors.affiliation: a Department of Pathology , Institute of Post Graduate Medical Education and Research , Kolkata , India.
authors.forename: Uttara
authors.initials: U
authors.lastname: Chatterjee
mesh_terms: D014408:Biomarkers, Tumor / Q000032:analysis; D001859:Bone Neoplasms / Q000556:secondary*; D002648:Child; D017809:Fatal Outcome; D006801:Humans; D007150:Immunohistochemistry; D007680:Kidney Neoplasms / Q000473:pathology*; D008297:Male; D018232:Rhabdomyosarcoma, Alveolar / Q000556:secondary*
chemical_list: D014408:Biomarkers, Tumor
keywords: Renal neoplasm; rhabdomyosarcoma; undifferentiated sarcoma