43. A5-year-old boy has orbital pain and proptosis of the right eye. A photomicrograph of orbital tissue obtained on biopsy is shown. A stain for desmin is positive. Which of the following is the most likely diagnosis? A) Chondrosarcoma B) Fibrosarcoma C) Leiomyosarcoma D) Liposarcoma E) Malignant fibrous histiocytoma F) Malignant giant cell tumor G) Malignant lymphoma H) Osteosarcoma 1) Rhabdomyosarcoma J) Synoviosarcoma

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43. A 5-year-old boy has orbital pain and proptosis of the right eye. A photomicrograph of orbital tissue
obtained on biopsy is shown. A stain for desmin is positive. Which of the following is the most likely
diagnosis?
A) Chondrosarcoma
B) Fibrosarcoma
C) Leiomyosarcoma
D) Liposarcoma
E) Malignant fibrous histiocytoma
F) Malignant giant cell tumor
G) Malignant lymphoma
H) Osteosarcoma
1) Rhabdomyosarcoma
J) Synoviosarcoma
Transcribed Image Text:43. A 5-year-old boy has orbital pain and proptosis of the right eye. A photomicrograph of orbital tissue obtained on biopsy is shown. A stain for desmin is positive. Which of the following is the most likely diagnosis? A) Chondrosarcoma B) Fibrosarcoma C) Leiomyosarcoma D) Liposarcoma E) Malignant fibrous histiocytoma F) Malignant giant cell tumor G) Malignant lymphoma H) Osteosarcoma 1) Rhabdomyosarcoma J) Synoviosarcoma
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