The creative and open-minded Tobias Tree-list of Areas of Special Knowledge

As there are several systems in the world to categorize medical specialities and subspecialties, one subject might be found under different specialities in different countries. This can be very confusing. To ensure Tobias Tree is easy to use, we have developed our own creative and open-minded list of subspecialities or areas of special knowledge (as we call it) by combining and collating existing systems as well as making some intuitive additions. Some subspecialities/areas of special knowledge may therefore be found under more than one main speciality.

Our catalogue is under constant development so, if you find a mistake, or would like to suggest a new entry or if you just want to share your thoughts and ideas with us, please do not hesitate to send us a message!

Allergy and Immunology	Allergy and immunology
Anesthesiology	Anesthesiology critical care medicine Critical care medicine Neurocritical care Pain medicine Pediatric anesthesiology Sleep medicine
Dermatology	Dermatopathology Micrographic dermatologic surgery Pediatric dermatology Procedural dermatology
Emergency Medicine	Anesthesiology critical care medicine Critical care medicine Emergency medical services Hospice and palliative medicine/care Internal medicine Medical toxicology Pain medicine Pediatric emergency medicine Sports medicine Undersea and hyperbaric medicine
Family Medicine	Adolescent medicine Geriatric medicine Hospice and palliative medicine/care Pain medicine Sleep medicine Sports medicine
Internal Medicine	Adolescent medicine Cardilology: Adult congenital heart disease Cardiology: Advanced heart failure and transplant cardiology Cardiology: Diagnostic cardiology Cardiology: Interventional cardiology Cardiovascular disease Clinical cardiac electrophysiology Critical care medicine Endocrinology, diabetes, and metabolism Gastroenterology Geriatric medicine Hematology Hospice and palliative medicine/care Infectious disease Internal medicine Nephrology Oncology Oncology Gynecologic Oncology Ocular Oncology Orthopaedic surgery Musculoskeletal oncology Oncology Radiation Oncology Urologic Pediatric cardiology Pediatric critical care medicine Pediatric endocrinology Pediatric gastroenterology Pediatric Hematology Pediatric infectious diseases Pediatric internal medicine Pediatric nephrology Pediatric Oncology Pediatric rheumatology Pediatric sports medicine Pediatric transplant hepatology Pulmonary disease Rheumatology Sleep medicine Sports medicine Transplant hepatology
Medical Genetics and Genomics	Biochemical genetics Clinical cytogenetics Clinical genetics and genomics Laboratory genetics and genomics Medical biochemical genetics Molecular genetic pathology
Neurology	Brain injury medicine Clinical neurophysiology Craniofacial surgery (also plastic) Epilepsy Hospice and palliative medicine/care Neurocritical care Neurodevelopmental disabilities Neurological surgery Neurological surgery Endovascular neuroradiology Neuromuscular medicine Pain medicine Pediatric neurology Pediatric sleep medicine Vascular neurology
Obstetrics and Gynecology	Complex family planning Critical care medicine Female pelvic medicine and reconstructive surgery Maternal-fetal medicine Oncology Gynecologic Reproductive endocrinologists and infertility
Ophthalmology	Anterior segment/cornea ophthalmology Glaucoma ophthalmology Neuro-ophthalmology Oculoplastics/orbit Oncology Ocular Ophthalmic surgery Ophthalmic surgery plastic & reconstructive Pediatric ophthalmology Retina/uveitis Strabismus
Ortopaedic Surgery	Oncology Orthopaedic surgery Musculoskeletal oncology Orthopaedic surgery Orthopaedic surgery Adult reconstructive Orthopaedic surgery Foot and ankle Orthopaedic surgery Hand Orthopaedic surgery Spine Orthopaedic surgery Sports medicine Orthopaedic surgery Trauma Otolaryngology Pediatric surgery Orthopaedics Pediatric surgery Otolaryngology
Pathology	Anatomical pathology Blood banking and transfusion medicine Chemical pathology Clinical pathology Cytopathology Dermatopathology Forensic pathology Genetic pathology Hematopathology Immunopathology Medical microbiology pathology Molecular genetic pathology Neuropathology Pediatric pathology
Pediatrics	Craniofacial surgery (also plastic) Developmental-behavioral pediatrics Hospice and palliative medicine/care Medical toxicology Neonatal-perinatal medicine Pediatric anesthesiology Pediatric cardiology Pediatric critical care medicine Pediatric dermatology Pediatric emergency medicine Pediatric endocrinology Pediatric gastroenterology Pediatric Hematology Pediatric hospital medicine Pediatric infectious diseases Pediatric internal medicine Pediatric nephrology Pediatric neurology Pediatric Oncology Pediatric ophthalmology Pediatric otolaryngology Pediatric pathology Pediatric pulmonology Pediatric radiology Pediatric rehabilitation medicine Pediatric rheumatology Pediatric sleep medicine Pediatric sports medicine Pediatric surgery Pediatric surgery Neonatal Pediatric surgery Oncology Pediatric surgery Orthopaedics Pediatric surgery Otolaryngology Pediatric surgery Prenatal Pediatric surgery Trauma Pediatric transplant hepatology Pediatric urology
Physical Medicine and Rehabilitation	Brain injury medicine Hospice and palliative medicine/care Neuromuscular medicine Pain medicine Pediatric rehabilitation medicine Spinal cord injury medicine Sports medicine
Preventive Medicine	Addiction medicine Aerospace medicine Clinical informatics Medical toxicology Occupational medicine Public Health medicine Undersea and hyperbaric medicine
Psychiatry	Addiction psychiatry Administrative psychiatry Child and adolescent psychiatry Clinical neurophysiology Community psychiatry Consultation/liaison psychiatry Emergency psychiatry Forensic psychiatry Geriatric psychiatry Mental retardation psychiatry Military psychiatry Pain medicine Psychiatric research Psychosomatic medicine
Radiology	Abdominal radiology Breast imaging Cardiothoracic radiology Cardiovascular radiology Chest radiology Contrast media issues Diagnostic radiology Emergency radiology Gastrointestinal radiology Genitourinary radiology Head and neck radiology Hospice and palliative medicine/care Interventional radiology Musculoskeletal radiology Neurological surgery Endovascular neuroradiology Neuroradiology Nuclear medicine Nuclear radiology Oncology Radiation Pediatric radiology Uroradiology Vascular and interventional radiology
Surgery	Colon and rectal surgery Craniofacial surgery (also plastic) General surgery General surgery critical care Micrographic dermatologic surgery Neurological surgery Neurological surgery Endovascular neuroradiology Oncology Gynecologic Oncology Orthopaedic surgery Musculoskeletal oncology Ophthalmic surgery Ophthalmic surgery plastic & reconstructive Oral and maxillofacial surgery Orthopaedic surgery Orthopaedic surgery Adult reconstructive Orthopaedic surgery Foot and ankle Orthopaedic surgery Hand Orthopaedic surgery Spine Orthopaedic surgery Sports medicine Orthopaedic surgery Trauma Otolaryngology Pediatric surgery Pediatric surgery Neonatal Pediatric surgery Oncology Pediatric surgery Orthopaedics Pediatric surgery Otolaryngology Pediatric surgery Prenatal Pediatric surgery Trauma Plastic surgery Plastic surgery Hand Surgical critical care Thoracic surgery Thoracic surgery Congenital cardiac Thoracic surgery-Integrated Vascular surgery
Urology	Calculi Female urology Male infertility Male urology Neurourology Oncology Urologic Pediatric urology Renal transplant

Our catalogue is under constant development. Please share your thoughts and ideas with us. Click here to send us a message!