Brain mass causes

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Kiran Singh, M.D. [2]

Causes

Cardiovascular	No underlying causes
Chemical/Poisoning	No underlying causes
Dental	No underlying causes
Dermatologic	No underlying causes
Drug Side Effect	No underlying causes
Ear Nose Throat	No underlying causes
Endocrine	No underlying causes
Environmental	No underlying causes
Gastroenterologic	No underlying causes
Genetic	No underlying causes
Hematologic	No underlying causes
Iatrogenic	No underlying causes
Infectious Disease	Brain abscess Source of infection Paranasal sinuses: Streptococcus spp (especially S. milleri), Haemophilus spp, Bacteroides spp, Fusobacterium spp Odontogenic sources:Streptococcus spp, Bacteroides spp, Prevotella spp, Fusobacterium spp, Haemophilus spp Otogenic sources: Enterobacteriaceae, Streptococcus spp, Pseudomonas aeruginosa, Bacteroides spp Urinary tract:Pseudomonas aeruginosa, Enterobacter spp*Lungs: Streptococcus spp, Fusobacterium spp, Actinomyces spp Penetrating head trauma:Staphylococcus aureus, Enterobacter spp, Clostridium spp Neurosurgical procedures:Staphylococcus spp, Streptococcus spp, Pseudomonas aeruginosa, Enterobacter spp Endocarditis: Viridans streptococci, S. aureus Congenital cardiac malformations (especially right-to-left shunts):Streptococcus spp
Musculoskeletal/Orthopedic	No underlying causes
Neurologic	No underlying causes
Nutritional/Metabolic	No underlying causes
Obstetric/Gynecologic	No underlying causes
Oncologic	Primary brain tumors Astrocytic tumors Pilocytic astrocytoma, diffuse astrocytoma, anaplastic astrocytoma, glioblastoma. Oligodendroglial and oligoastrocytic tumors Oligodendroglioma, anaplastic oligodendroglioma, oligoastrocytoma, anaplastic oligoastrocytoma, glioblastoma with oligodendroglioma component. Ependymal tumors Subependymoma, myxopapillary ependymoma, ependymoma, anaplastic ependymoma. Choroid plexus tumors Choroid plexus papilloma, choroid plexus carcinoma. Neuronal and mixed neuronal-glial tumors Ganglioglioma*Central neurocytoma, filum terminale paraganglioma, dysembryoplastic neuroepithelial tumor (DNET). Pineal parenchymal tumors Pineocytoma, pineoblastoma. Embryonal tumors Medulloblastoma, supratentorial primitive neuroectodermal tumor (PNET), atypical teratoid/rhabdoid tumor. Meningeal tumors Meningioma, atypical, clear cell, chordoid, rhabdoid, papillary, or anaplastic (malignant). Secondary tumors and non-tumor lesions Lung cancer, skin cancer, malignant melanoma, hypernephroma, breast cancer, colon carcinoma.
Ophthalmologic	No underlying causes
Overdose/Toxicity	No underlying causes
Psychiatric	No underlying causes
Pulmonary	No underlying causes
Renal/Electrolyte	No underlying causes
Rheumatology/Immunology/Allergy	No underlying causes
Sexual	No underlying causes
Trauma	No underlying causes
Urologic	No underlying causes
Miscellaneous	No underlying causes