A 62-year-old man with left flank pain and hematuria was shown to have a staghorn stone in left renal pelvis.
Grossly, renal pelvis and calyces were markedly dilated with cystic and hemorrhagic degeneration and renal parenchyma was atrophied. A tumor-like mass was located in a hemorrhagic cyst of the renal upper pole. This mass consisted of giant cells and stromal cells mimicking a giant cell tumor of bone. This giant cell tumor-like proliferation may represent a response to hemorrhage into a cystic cavity. Recognition of this finding is important to avoid the over-diagnosis of neoplastic lesions.
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Imaged guided surgery during arteriovenous malformation of gastrointestinal stromal tumor using hyperspectral and indocyanine green visualization techniques: A case report Tristan Wagner, Onur Mustafov, Marielle Hummels, Anders Grabenkamp, Michael N Thomas, Lars Mortimer Schiffmann, Christiane J Bruns, Dirk L Stippel, Roger Wahba World Journal of Clinical Cases.2023; 11(23): 5530. CrossRef