PMC3546898_01
Selected images from the pathological evaluation. (A) The retroperitoneal mass is composed of cellular fusiform cells with a staghorn vascular pattern. Mitotic figures are frequent, but no atypical forms are seen (hematoxylin and eosin stain 10x). (B) An immunohistochemical stain for CD34 performed on the retroperitoneal mass (10x). (C) A core biopsy of the liver shows increased cellularity and increased cellular pleomorphism, with areas of necrosis (hematoxylin and eosin stain 10x). (D) An immunohistochemical stain for CD34 performed on liver mass (10x).
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F1
Selected images from the pathological evaluation are presented in Figure 1.
Computed tomography scan of the abdomen demonstrating metastatic solitary fibrous tumor involvement of the liver.
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F2
Of interest, it is said that over 80% of the hepatic mass must typically be destroyed before this alone would cause fasting hypoglycemia, and although there was significant tumor involvement of the liver, imaging in our patient suggested that at least 20% normal liver remained (Figure 2).