Perirolandic sparing and pituitary apoplexy in adult brain with global hypoxia. A case report

T. J. Eluvathingal Muttikkal; S. Vattoth; V. N. Keluth Chavan; Abdelmohsen Bennakhi; V. Sajeev Pynadath Joseph

Perirolandic sparing and pituitary apoplexy in adult brain with global hypoxia. A case report

T. J. Eluvathingal Muttikkal, S. Vattoth, V. N. Keluth Chavan, Abdelmohsen Bennakhi, V. Sajeev Pynadath Joseph

Diagnostic Imaging Center

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2 Citations (Scopus)

Abstract

Global hypoxia in adult brain usually manifests as ischemic lesions in watershed territories. Acute profound hypoxia involves the cortex especially the perirolandic area, white matter and deep grey matter. Perirolandic sparing in adult global hypoxia is not described in literature. Few cases of perirolandic sparing are described in conditions like anoxia in term infants in the post-neonatal period and hepatic encephalopathy. We report a case of global hypoxia in adult brain with perirolandic sparing and unique association with pituitary apoplexy. It is well known that the "diving reflex" redistribution of cerebral blood flow to the high metabolically active regions occurs when the hypoxic insult is prolonged and partial. The perirolandic sparing in our case could be explained by this phenomenon, wherein the patient acutely developed hypoxia, which was profound and prolonged but not prolonged enough for deep grey matter sparing.

Original language	English
Pages (from-to)	505-509
Number of pages	5
Journal	Neuroradiology Journal
Volume	20
Issue number	5
Publication status	Published - 1 Oct 2007

Keywords

Hypoxia
Magnetic resonance imaging
Perirolandic sparing
Pituitary apoplexy

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title = "Perirolandic sparing and pituitary apoplexy in adult brain with global hypoxia. A case report",

abstract = "Global hypoxia in adult brain usually manifests as ischemic lesions in watershed territories. Acute profound hypoxia involves the cortex especially the perirolandic area, white matter and deep grey matter. Perirolandic sparing in adult global hypoxia is not described in literature. Few cases of perirolandic sparing are described in conditions like anoxia in term infants in the post-neonatal period and hepatic encephalopathy. We report a case of global hypoxia in adult brain with perirolandic sparing and unique association with pituitary apoplexy. It is well known that the {"}diving reflex{"} redistribution of cerebral blood flow to the high metabolically active regions occurs when the hypoxic insult is prolonged and partial. The perirolandic sparing in our case could be explained by this phenomenon, wherein the patient acutely developed hypoxia, which was profound and prolonged but not prolonged enough for deep grey matter sparing.",

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AU - Eluvathingal Muttikkal, T. J.

AU - Vattoth, S.

AU - Keluth Chavan, V. N.

AU - Bennakhi, Abdelmohsen

AU - Sajeev Pynadath Joseph, V.

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AB - Global hypoxia in adult brain usually manifests as ischemic lesions in watershed territories. Acute profound hypoxia involves the cortex especially the perirolandic area, white matter and deep grey matter. Perirolandic sparing in adult global hypoxia is not described in literature. Few cases of perirolandic sparing are described in conditions like anoxia in term infants in the post-neonatal period and hepatic encephalopathy. We report a case of global hypoxia in adult brain with perirolandic sparing and unique association with pituitary apoplexy. It is well known that the "diving reflex" redistribution of cerebral blood flow to the high metabolically active regions occurs when the hypoxic insult is prolonged and partial. The perirolandic sparing in our case could be explained by this phenomenon, wherein the patient acutely developed hypoxia, which was profound and prolonged but not prolonged enough for deep grey matter sparing.

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