A 72-year-old female presented with episodes of epistaxis. Neuroimaging demonstrated a large prolacti noma totally enclosing a large intracavernous aneurysm of the internal carotid artery. Adjacent bony structures were eroded and destroyed by tumor invasion and extension. Rupture of the intratumoral aneurysm caused fatal epistaxis rather than subarachnoid hemorrhage before surgery. Intratumoral aneurysm is rare and epistaxis caused by rupture of it is extremely rare. Lack of bony protection appar ently have contributed to the aneurysmal growth and rupture.
A case of malignant cystosarcoma phyllodes of the prostate is reported in a 45‐year‐old male. This tumor was composed of benign columnar or squamous cystic folds and sarcomatous stroma including rhabdomyomatous elements. The prostatic origin of the tumor was clearly proved by the unlabeled immunoperoxidase method. ACTA PATHOL. JPN. 34: 663–668, 1984.
A 51-year-old Japanese man underwent resection of a tumor in the splenic flexure of the colon, which proved to be squamous cell carcinoma. At the time of presentation, the liver was found to have multiple metastases. On the 39th postoperative day, the patient died of liver failure. An autopsy demonstrated metastatic nodules on the pleura and parenchyma of both lungs, as well as in the liver, but failed to show any other primary squamous cell carcinoma. We emphasize that a meticulous search to disprove adenosquamous carcinoma is mandatory before a diagnosis of squamous cell carcinoma of the colon can be confirmed.
We present a rare case of metastatic renal tumor originating from squamous cell carcinoma of the hypopharynx. A 67-year-old man treated with irradiation for hypopharyngeal carcinoma was referred to our hospital with gross hematuria and a left renal mass, which was delineated as a heterogeneously enhanced mass by CT scan. Left nephrectomy was performed, and the non-encapsulated mass was gray in color macroscopically. Histological examination of the specimen revealed alveolar proliferation of small cancer cells, which was consistent with the original tumor of the hypopharynx. The left renal tumor was diagnosed as poorly differentiated squamous cell carcinoma metastasized from the hypopharynx. The patient remains alive, with no evidence of disease, 8 months following left nephrectomy. This case was thought to be the first report of a renal metastasis from a hypopharyngeal carcinoma that was diagnosed clinically and treated with nephrectomy.
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