List of anatomical variations

This article lists anatomical variations that are not deemed inherently pathological.

Bones

 * Cervical rib
 * Fabella
 * Foramen tympanicum
 * Supracondylar process of the humerus
 * Sternal foramen
 * Stafne bone cavity
 * Episternal ossicles
 * Fossa navicularis magna
 * Transverse basilar fissure - or Saucer's fissure
 * Canalis basilaris medianus
 * Craniopharyngeal canal
 * Intermediate condylar canal
 * Foramen arcuale
 * Os odontoideum
 * Os acromiale
 * Ossiculum terminale (of dens)
 * Scapular foramina and tunnels

Muscles

 * Accessory soleus muscle
 * Axillary arch
 * Epitrochleoanconeus muscle - or anconeous epitrochlearis
 * Extensor medii proprius muscle
 * Extensor digitorum brevis manus muscle
 * Extensor indicis et medii communis muscle
 * Extensor pollicis et indicis communis muscle
 * Extensor carpi radialis tertius muscle - or extensor carpi radialis accessorius
 * Linburg-Comstock variation - or conjoint flexor pollicis longus and flexor digitorum profundus of the index
 * Sternalis muscle - or rectus thoracis
 * Psoas minor muscle
 * Palmaris profundus muscle
 * Pterygoideus proprius muscle
 * Styloauricularis muscle
 * Transversus nuchae muscle
 * Accessory popliteus muscle
 * Tensor fasciae suralis muscle
 * Sternoclavicularis anticus muscle
 * Gluteoperinealis muscle
 * Gantzer's muscle
 * Levator claviculae muscle
 * Chondrocoracoideus muscle

Vasculature

 * Double cystic artery

Glands

 * Accessory parotid gland
 * Zuckerkandl's tubercle

Organs

 * Accessory spleen
 * Azygos lobe of the lung
 * Tracheal bronchus
 * Hirsuties coronae glandis
 * Cardiac bronchus

Other

 * Accessory pancreatic duct
 * Accessory nail of the fifth toe
 * Darwin's tubercle
 * Vein of foramen caecum
 * Osborne's ligament
 * Gastropancreatic ligament
 * Diagonal ear lobe crease
 * Preauricular sinus
 * Supernumerary nipple

Muscles

 * Risorius
 * Psoas minor
 * Absence of the palmaris longus
 * Dividement of the piriformis
 * Missing or underdeveloped pectoralis major is called Poland's syndrome

Other

 * Appendix
 * Agenesis of wisdom teeth
 * Empty sella turcica

Bones

 * Sesamoid bone of the second, third, fourth and fifth finger
 * Manubriosternal fusion
 * Sternoxiphoidal fusion

Muscles

 * Myocardial bridge

Nerves

 * Nerve of Mckenzie

Vasculature

 * Artery of Percheron
 * Variation of basilic vein
 * Median artery
 * Thyroid ima artery
 * Superficial ulnar artery
 * Marginal artery of the colon
 * Persistent primitive olfactory artery
 * Arc of Bühler
 * Stapedial artery
 * Hypoglossal artery
 * Corona mortis

Other

 * Anisocoria
 * Appendix
 * Crease of the upper eyelid – having either a "single" or "double" eyelid
 * Epicanthic fold
 * Lateral arcuate ligament
 * Horseshoe kidney - also known as ren arcuatus