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  2. The International Classification of Headache Disorders (ICHD) is a detailed hierarchical classification of all headache-related disorders published by the International Headache Society. [1] It is considered the official classification of headaches by the World Health Organization , and, in 1992, was incorporated into the 10th edition of their ...

  3. ICHD classification and diagnosis of migraine - Wikipedia

    en.wikipedia.org/wiki/ICHD_classification_and...

    Under the category of headache attributed to a substance or its withdrawal, the ICHD specifies the diagnostic criteria for oestrogen-withdrawal headache (8.4.3, G44.83 and Y42.4), and suggests that both that diagnosis and one of the menstrual migraine diagnoses be used in case of migraines related to oestrogen withdrawal occurring mainly at ...

  4. Tension headache - Wikipedia

    en.wikipedia.org/wiki/Tension_headache

    Tension headache, stress headache, or tension-type headache (TTH), is the most common type of primary headache. The pain usually radiates from the lower back of the head, the neck, the eyes, or other muscle groups in the body typically affecting both sides of the head. Tension-type headaches account for nearly 90% of all headaches.

  5. Nelson's syndrome - Wikipedia

    en.wikipedia.org/wiki/Nelson's_syndrome

    Nelson's syndrome is a disorder that occurs in about one in four patients who have had both adrenal glands removed to treat Cushing's disease. [1] In patients with pre-existing adrenocorticotropic hormone ()-secreting pituitary adenomas, loss of adrenal feedback following bilateral adrenalectomy can trigger the rapid growth of the tumor, leading to visual symptoms (e.g. bitemporal hemianopsia ...

  6. Pituitary apoplexy - Wikipedia

    en.wikipedia.org/wiki/Pituitary_apoplexy

    The most common symptom, in over 95% of cases, is a sudden-onset headache located behind the eyes or around the temples. It is often associated with nausea and vomiting . [ 1 ] [ 2 ] [ 3 ] Occasionally, the presence of blood leads to irritation of the lining of the brain , which may cause neck rigidity and intolerance to bright light, as well ...

  7. Convergence insufficiency - Wikipedia

    en.wikipedia.org/wiki/Convergence_insufficiency

    The symptoms and signs associated with convergence insufficiency are related to prolonged, visually demanding, near-centered tasks. They may include, but are not limited to, diplopia (double vision), asthenopia (eye strain), transient blurred vision, difficulty sustaining near-visual function, abnormal fatigue, headache, and abnormal postural adaptation, among others.

  8. Bitemporal hemianopsia - Wikipedia

    en.wikipedia.org/wiki/Bitemporal_hemianopsia

    Bitemporal hemianopsia is the medical description of a type of partial blindness where vision is missing in the outer half of both the right and left visual field. It is usually associated with lesions of the optic chiasm , the area where the optic nerves from the right and left eyes cross near the pituitary gland.

  9. Pituitary adenoma - Wikipedia

    en.wikipedia.org/wiki/Pituitary_adenoma

    Download QR code; Print/export ... Visual field loss in bitemporal hemianopsia: ... [10] Various types of headaches are common in patients with pituitary adenomas ...