A Case Report of Additional Slip of Pectoralis Major – Pectorotubero Fascialis Muscle

Abstract

Variations in the pectoralis major (PM) muscles have been reported by various authors in the literature. We report a case of accessory slip of PM with variation in insertion which has not been reported in the literature to the best of our knowledge. This accessory slip was partially muscular getting inserted into medial lip of intertubercular sulcus (ITS) and partially aponeurotic getting inserted into lateral lip ITS, thus forming “H”-shaped pattern. Knowledge of such anatomical variation will create awareness among surgeons performing surgical reconstruction using PM muscle.

Keywords

• chondroepitrochlearis
• costoepitrochlearis
• pectoralis major.