Which mechanism is the likely etiology of pregnancy - related pituitary apoplexy?.

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Conclusion. Thanks Dr Krshnendu for the answer. Correct answer is Portal Venous System Compression. Pituitary apoplexy of pregnancy results from hemorrhagic infarction of the pituitary gland This is thought to occur when hormonal changes associated with pregnancy cause rapid expansion of preexisting adenoma , which then results in Portal vein compression or outgrowth of its blood supply . Sheehan syndrome is post delivery pituitary necrosis due to blood loss and resultant hypovolemic shock. Pituitary apoplexy of pregnancy may present with thunderclap headache and visual acuity and visual field changes; it may represent a neuroendocrine emergency because of acute adrenal insufficiency.

PPH with ischemic necrosis of ant pit.

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