Which of the following is most likely to be found in the patient's retroperitoneum?

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A 60-year-old woman comes to her physician because she has had lower back pain for 1 month. On physical examination, there are no remarkable findings except for pain on deep palpation of the abdomen. Findings from a routine urinalysis, CBC, and serum electrolyte panel all are unremarkable. Twenty years earlier, she was treated for Hodgkin lymphoma with abdominal irradiation and chemotherapy; there has been no evidence of recurrence during regular followup visits. MRI now shows a 10 × 15 cm ovoid mass of the left retroperitoneum.
1. Desmoid tumor
2. Recurrent Hodgkin lymphoma
3. Rhabdomyosarcoma
4. Leiomyosarcoma
5. Malignant fibrous histiocytoma

Asked by Farlane, Last updated: Nov 09, 2024

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1 Answer

John Smith

Answered Sep 09, 2016

Malignant fibrous histiocytoma-(e) although sarcomas generally are uncommon, malignant fibrous histiocytoma is one of the more common varieties ofsoft-tissue sarcoma in adults, and it is the most common type of postirradiation soft-tissue sarcoma. a desmoid tumor isdeep fibromatosis of the abdomen or extremities that can be locally aggressive or recur after excision. it is not a trueneoplasm, however, and does not metastasize. hodgkin lymphoma is unlikely to recur after 20 years and is unlikely toarise in soft tissue. rhabdomyosarcomas generally occur in children. a leiomyosarcoma is more likely to arise in the uterusor gastrointestinal tract.bp7 785bp8 834835pbd7 1301, 13201321pbd8 1253