Posterior fossa metastasis of lung carcinoid tumor: case report

Reinas, Rui; Santos, Raúl Baggen; Kitumba, Djamel; Furtado, André Tosi; Alves, Óscar L.; Resende, Marco Flávio da Cunha

doi:10.1080/02688697.2018.1457774

Cited by 1 publication

(1 citation statement)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The 5-year survival rate for NETs and those with distant metastases excluding the brain are reported to be 60–67%[ 12 , 15 ] and 38–40%,[ 12 , 17 ] respectively. Notably, the prognosis of patients with intracranial metastases is particularly poor, with the 1-year survival rate of 33–42%[ 16 ] and the 5-year survival rate of 10%. [ 10 ] Although the overall median survival after the diagnosis of brain metastasis is considered to be 9–19 months,[ 5 , 9 , 10 ] our patient survived for 4 years after the initial surgery for the brain metastasis.…”

Section: Discussionmentioning

confidence: 99%

Cerebellopontine angle metastasis of a neuroendocrine tumor mimicking vestibular schwannoma: A case report

Yamada

Kijima

Kinoshita

et al. 2022

Surgical Neurology International

View full text Add to dashboard Cite

Background: Neuroendocrine tumors (NETs) are uncommon neoplasms arising from neuroendocrine cells and are rarely associated with intracranial metastases. Case Description: We discuss the case of a 74-year-old woman with a right CPA tumor. She had a history of retroperitoneal NET, but was diagnosed with vestibular schwannoma due to a right-sided hearing loss and a right CPA tumor along the VII and VIII nerves. After a 3-year follow-up, she presented with repetitive vomiting, a 1-month history of gait instability, and a 3-month history of general fatigue. Brain imaging revealed tumor growth and edematous changes in the right cerebellum. She underwent retrosigmoid craniotomy and partial resection. Histopathological examination revealed metastatic NET. She underwent stereotactic radiosurgery for residual lesion and, at 11 months of follow-up, the lesion was confirmed to have shrunk on magnetic resonance imaging (MRI). Conclusion: This is the first case to report the natural course of cerebellopontine metastasis of a NET. The differential diagnosis of CPA tumors is diverse, and, in our case, we suspected a vestibular schwannoma because of the typical symptoms and imaging features. However, the tumor grew relatively faster than expected and showed intratumoral hemorrhage during the 3-year follow-up. Therefore, in patients with a history of a NET, a careful follow-up is advisable even for lesions highly suspected to be another benign tumor on MRI. Careful follow-up imaging and appropriate treatment strategies were useful to manage the brain metastasis. Although NETs metastasizing to the CPA are extremely rare, this possibility should be considered when patients with NETs have intracranial lesions.

show abstract