Galicia Clínica (Mar 2017)

“Drop metastasis”: a rare diagnosis. A case report and review of literature

  • Ana Simas,
  • Carolina Sales,
  • Maria Fragoso

DOI
https://doi.org/10.22546/43/1001
Journal volume & issue
Vol. 78, no. 1
pp. 23 – 25

Abstract

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“Drop metastasis”, also known as intramedullary spinal cord metastasis (ISCM), is a rare complication of cancer, affecting0.1%–0.4% of all cancer patients.It is the rarest type of central nervous system (CNS) involvementby systemic malignant tumours, and it accounts for2%–8.5% of CNS metastasis and 0.9%–5% of all spinalcord metastasis. Before MRI being available, most cases of“Drop metastasis” were diagnosed only upon autopsy. Allthough this rare complication is most commonly secondary to small-cell lung cancer, it can also be seen in non–small-cell lung cancer, breast cancer, kidney cancer, melanoma,and lymphoma.3 The clinical diagnosis of ISCM shouldbe raised in the presence of rapidly progressive neurologic deficit.

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