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Letter to the editor
John Allcock and a brief history of Allcock’s test
  1. Visish M Srinivasan1,
  2. Michael George Zaki Ghali2,
  3. Peter Kan1
  1. 1 Department of Neurosurgery, Baylor College of Medicine, Houston, Texas, USA
  2. 2 Department of Neurobiology and Anatomy, Drexel University, Philadelphia, USA
  1. Correspondence to Dr Visish M Srinivasan; visishs{at}gmail.com and Dr Michael George Zaki Ghali; mgg26{at}drexel.edu

https://doi.org/10.1136/neurintsurg-2017-013578

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    Recently, we have read several articles referencing a commonly used test for assessing collateral circulation across the posterior communicating artery (PCoA), known as Allcock’s test. This eponymous test, described by James Allcock, a pioneering neuroradiologist, was unfortunately missspelled as ‘Alcock’s’ test in several publications.1–5 We would like to take this opportunity to briefly discuss the test itself and a brief history of Dr Allcock’s contributions.

    The story of Dr John Allcock and Dr Charles Drake exemplifies the strength of collaboration between neuroradiologists and neurosurgeons.6 While Drake is a household name among neurosurgeons worldwide, few are familiar with Allcock, one of his chief collaborators.7 Drake first described …

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    Footnotes

    • Contributors VMS, MGZG, and PK meet the criteria for authorship.

    • Competing interests None declared.

    • Provenance and peer review Not commissioned; internally peer reviewed.