A variant oblique fissure of left lung

The left lung classically has one fissure, the oblique fissure and two lobes namely the upper and lower lobes. Variations of lobar pattern and fissures have been described by many authors on imaging techniques whereas there are fewer studies in gross anatomy. In the present case which was detected incidentally, we report a variant oblique fissure of left lung. Such abnormal fissures are clinically important for identifying broncho-pulmonary segments. Anatomical knowledge of variations of fissures and lobes may be important for surgeons performing lobectomies, radiologists interpreting x-rays and CT scans and also to academicians in the medical field.