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variation

Variations of axillary and brachial arteries
Figure 1: Dissection of the right axilla showing the variant common arterial trunk (CT) from axillary artery (AA – axillary artery; AV – axillary vein; STA – superior thoracic artery; TAA – thoracoacromial artery; PMJ – pectoralis major; PMI – pectoralis minor; SHB – short head of biceps; CB – coracobrachialis; MN – median nerve; UN – ulanar nerve; LSN – lower subscapular nerve; TDN – thoracodorsal nerve; SSA – subscapular artery; LTA – lateral thoracic artery).
Biometrics of psoas minor muscle
Figure 1: Unilateral psoas minor muscle on right side (T-Tendon of Psoas minor; M-muscle belly of Psoas minor. PMa- Psoas major muscle)
Unusual path of ilioinguinal nerve branches
Figure 1: Dissection of left groin region showing the unusual path of branches of the ilioinguinal nerve (IIN). (Ba, Bb and Bc: branches of the IIN; SC: spermatic cord; CT: conjoint tendon; EOA: external oblique aponeurosis; IO: internal oblique muscle)
Vertebro-subclavian trunk
Figure 1: Anterior view of the mediastinum showing the variant origin of the left subclavian artery and left vertebral artery. (Asterisk: common vertebro-subclavian trunk; LVA: left vertebral artery; LSA: left subclavian artery; AA: arch of aorta; LBV: left brachiocephalic vein; BCT: brachiocephalic trunk; RBV: right brachiocephalic vein; SVC: superior vena cava; LVN: left vagus nerve)
Variant right hepatic artery
Figure 1: Dissection of the coeliac trunk (CT) and its branches showing the normal origin of hepatic artery proper (HAP) and gastroduodenal artery (GDA) from common hepatic artery (CHA). HAP trifurcating to give middle (MHA), Left (LHA) and Right hepatic artery (RHA). RHA on its further course turning right deep to common hepatic duct (CHD) and giving branch to liver (*). SA- splenic artery, LGA- left gastric artery, PV- portal vein, BD- bile duct, CD- cystic duct, GB- gall bladder
Unusual termination of facial vein
Figure 1: Neck dissection showing variant drainage pattern of facial vein (FV) and anterior division of retromandibular vein (ARM) into external jugular vein (EJV). PRM: posterior division of retromandibular vein, PAV: posterior auricular vein. A communicating vein (CV) can also be noted between ARM and EJV.
Higher bifurcation of brachial artery with abnormal superficial palmar arch
Figure 1: Showing the high origin of superficial ulnar artery. SUA: Superficial Ulnar artery; BA: Brachial artery; RA: Radial artery; CIA: Common Interosseous Artery.
High origin of ulnar artery
Figure  1:  Dissection  of  the  front  of  the  arm  showing  the high  origin  of  superficial  ulnar  artery  (SUA)  from  the brachial artery (BrA). Median nerve (MN) and biceps brachii muscle  (BB)  are  pushed  laterally  to  expose  the  vessels. (MCV-  Median  cubital  vein,  BiA-  Bicipital  aponeurosis, BV- Basilic vein)