[A case of giant hemorrhagic adrenal pseudocystectomy with a flank incision].

The patient was a 43-year-old woman who underwent detailed examinations for a retroperitoneal cystic lesion that was incidentally found during orthopedic treatment. Although the tumor was a non-functioning tumor, and diagnostic imaging was negative for malignancy, the tumor was surgically resected with a flank incision. The histopathological diagnosis was adrenal pseudocyst.