A case of petrous bone myxoid chondrosarcoma associated with cerebellar hemorrhage

Treatment, Survival, and Demographics in Temporal Bone Malignancies: A Pooled Data Analysis

Temporal bone malignancies are relatively uncommon tumors. Their location adjacent to vital structures such as the carotid artery, jugular vein, otic capsule, and temporal lobe can make their treatment potentially challenging. The purpose of this study was to compare outcomes in temporal bone malignancies obtained via pooled literature data. The study sought to examine factors affecting survival in temporal bone malignancies based on the studies in the existing published literature. A systematic search was conducted on the PubMed (Medline), Embase, and Google Scholar databases to identify relevant studies from 1951 to 2022 that described the treatment of temporal bone malignancies. Articles that fulfilled the inclusion criteria were assessed and analyzed by the author. The literature search identified 5875 case series and case reports, and 161 of them contained sufficient data to be included in the pooled data analysis, involving a total of 825 patients. Multivariate analysis of the pooled literature data showed that overall stage, presence of facial palsy, and surgical margin status significantly affected overall survival (OS), while overall stage and presence of facial palsy significantly affected disease-free survival (DFS). To summarize, this study examined pooled survival data on demographics, treatment, and survival of patients with temporal bone malignancies utilizing an extensive literature-based pooled data meta-analysis. Overall stage, facial nerve status, and surgical margin status appeared to most strongly affect survival in patients with temporal bone malignancies.

Skull base chondrosarcoma presenting with parenchymal hemorrhage: A case report

Chondrosarcoma (CS) is a locally invasive, slow growing malignant neoplasm. Intracranial chondrosarcoma are extradural osseous lesions and intradural location with intratumoral hemorrhage is very rare. We report a rare case of 65-year-old male presenting with a small mass in left posterior skull base and later, suddenly deteriorating due to large cerebellar hemorrhage. A brief review of literature of such cases is also presented.

A case of acute subdural hematoma due to bleeding from metastatic chondrosarcoma of the skull

BACKGROUND

Intra or peritumoral hemorrhage of brain and skull tumors sometimes presents as stroke. Skull metastasis of chondrosarcoma is relatively rare, and furthermore, a case of intratumoural hemorrhage of skull metastasis of chondrosarcoma has not been reported.

CASE DESCRIPTION

A 73-year-old man underwent right lower leg amputation in the past because of chondrosarcoma and was operated for a skull metastasis. He presented with a sudden headache, and head computed tomography revealed a right acute subdural hematoma (SDH) adjacent to the recurrent skull metastatic tumor. The removal of the SDH and tumor resection were performed emergently. The intraoperative findings included metastatic invasion beyond the dura mater to as deep as the subdural space, and the histological diagnosis was metastatic chondrosarcoma. His postoperative course was uneventful.

CONCLUSION

In the event of subdural invasion of a metastatic lesion, intratumoral hemorrhage may induce acute SDH, as in the present case. Similar to our case, most previous reports of intracranial chondrosarcoma hemorrhage have had an unclear etiology. Despite the rarity of this event, a patient with a history of malignancy presenting with nontraumatic acute SDH should be examined for the intratumoral hemorrhage of skull metastasis in the differential diagnosis.

Hemorrhagic chondrosarcoma in a patient with Ollier disease: Case report and literature review

We present a rare case of skull-base hemorrhagic chondrosarcoma in a patient with Ollier disease. Chondrosarcomas complicated by intracranial hemorrhage are very uncommon, with few reported cases in the literature. To our knowledge, this is the first such reported case.

Skull base chondrosarcoma presenting with hemorrhage

A 34-year-old white man with a six month history of a feeling of déjà vu presented with an acute onset of headache and blurred vision associated with nausea and vomiting. Neurological examination was significant for a right third cranial nerve palsy. Computerized tomography (CT) demonstrated a 2.0 cm rim calcified right paracavernous mass with intratumoral hemorrhage and an adjacent 2.6 cm by 2.0 cm right temporal lobe hematoma. Intraventricular hemorrhage (IVH) was present in both lateral ventricles, right more than left (Figure 1). Diagnostic cerebral angiography demonstrated no evidence of aneurysm. Brain magnetic resonance (MR) imaging revealed a 2 cm mass in the right paracavernous region extending into the suprasellar region with heterogeneous signal intensity on T1- and T2-weighted images and heterogeneous enhancement after gadolinium administration. Adjacent to the lesion was a right temporal lobe hematoma; intraventricular hemorrhage was also observed in the right lateral ventricle (Figure 2). The patient underwent a right pterional craniotomy for gross total resection of the tumour. Histopathological examination of the tumour demonstrated a low grade hyaline chondrosarcoma. The patient subsequently underwent proton beam radiotherapy and is currently 82 months out from surgery with no evidence of recurrence.