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Published on: January 17, 2018
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Pituitary Macroadenoma Presenting With Monocular Temporal Hemianopia.
Ankur Gupta1, Mira Deshmukh, George Palexas
1Ophthalmology Department, North Middlesex Hospital NHS Trust, London, United Kingdom.
Summary
A rare case of pituitary macroadenoma caused vision loss in a pregnant woman. Early diagnosis via visual field testing and MRI identified the symmetrical tumor compressing the optic chiasm.
Area of Science:
- Neuro-ophthalmology
- Endocrinology
- Radiology
Background:
- Pituitary macroadenomas are tumors of the pituitary gland, often presenting with hormonal imbalances or visual disturbances due to mass effect.
- Pregnancy can alter physiological states, potentially influencing tumor behavior or symptom presentation.
Observation:
- A 35-year-old primigravida woman experienced reduced visual acuity in her right eye during pregnancy.
- Humphrey visual field testing revealed a right eye temporal hemianopia prior to delivery.
Findings:
- Magnetic Resonance Imaging (MRI) after delivery identified a largely symmetrical pituitary macroadenoma.
- The tumor was causing significant compression of the optic chiasm, explaining the visual field defect.
Implications:
- This case highlights a rare presentation of pituitary macroadenoma, particularly its symmetrical nature, in a pregnant patient.
- It underscores the importance of neuro-ophthalmological evaluation for visual changes during pregnancy and prompt radiological assessment for suspected pituitary lesions.
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