This may be an initial presentation of a spontaneous CSF leak or appear after treatment such as an epidural patch, and likely indicates a slow CSF leak. While high CSF pressure can make lying down unbearable, low CSF pressure due to a leak can be relieved by lying flat on the back.About 50% of people with a CSFL experience neck pain or stiffness, nausea, and vomiting.Other symptoms of a CSF leak include photophobia, dizziness and vertigo, gait disturbances, tinnitus, facial numbness or weakness, visual disturbances, brain fog or difficulties with concentration, neuralgia, fatigue, fluid dripping from the nose or ears,Aural symptoms are also present in many cases of intracranial hypotension due to CSF leak; including muffled hearing, pulsatile tinnitus, hearing loss. Less common symptoms include double vision (due to cranial nerve 6 palsy) or tremor.Movement disorders are uncommon in spontaneous CSF leaks but occasionally can be one of the major components of the clinical presentation.Some cases of chronic intracranial hypotension due to CSF leak may present as personality changes, altered behaviors and impairment of executive functions, similar to behavioral-variant frontotemporal dementia as the frontal and temporal lobes are affected by downward sagging due to reduced intra-cranial pressures.An untreated CSF leak can result in coma or death as late stage findings as the brainstem herniates through the skull base or foramen magnum . Causes
A spontaneous CSF leak is termed so as it has previously been thought to be idiopathic, meaning the cause is unknown.
Fibrocystic breast changes
Also called:  fibrocystic breast disease, chronic cystic mastitis, diffuse cystic mastopathy, mammary dysplasia

Infections and inflammations
These may be caused among others by trauma, secretory stasis/milk engorgement, hormonal stimulation, infections or autoimmune reactions. Repeated occurrence unrelated to lactation requires endocrinological examination. bacterial mastitis
mastitis from milk engorgement or secretory stasis
mastitis
chronic subareolar abscess
tuberculosis of the breast
syphilis of the breast
retromammary abscess
actinomycosis of the breast
duct ectasia syndrome
breast engorgement

Other breast conditions
Mondors disease
Pagets disease of the breast
nipple discharge, galactorrhea
breast cyst
mastalgia
galactocoele

See also
Mammary gland

References
Further reading
Irshad, A.; Ackerman, S. J.; Pope, T. L.; Moses, C. K.; Rumboldt, T.; Panzegrau, B. (2008). "Rare Breast Lesions: Correlation of Imaging and Histologic Features with WHO Classification1". Radiographics. 28 (5): 1399–1414. doi:10.1148/rg.285075743. PMID 18794315. == External links ==