Luis Ernesto Ballesteros

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BACKGROUND The frequency of variation found in the arrangement and distribution of the branches in the brachial plexus, make this anatomical region extremely complicated. The medical concerns involved with these variations include anesthetic blocks, surgical approaches, interpreting tumor or traumatic nervous compressions having unexplained clinical(More)
Traditional anatomy describes each kidney as receiving irrigation from a single renal artery. However, current literature reports great variability in renal blood supply, the number of renal arteries mentioned being the most frequently found variation. Such variation has great implications when surgery is indicated, such as in renal transplants,(More)
The left coronary artery presents wide variability in its morphological expression. The purpose of this work was to determine the variations in the left coronary artery and those of its branches in heart samples taken from a group of 154 Colombian mixed-race people. Cadaveric coronary arteries were injected with synthetic resins. Left coronary artery trunks(More)
BACKGROUND Accessory ADM was first reported in 1868 although muscular, vascular and nervous variations of the hypothenar eminence are rare, contrary to anomalous muscles in the wrist which are relatively common. CASE PRESENTATION This case report presents a bilateral variation of an accessory abductor digiti minimi muscle in a male specimen. Ulnar artery(More)
The literature has closely observed otic symptoms (and other craniofacial complaints) in temporomandibular disorders; however, there is little evidence for an association between the two. This review tries to provide an integrated biological basis for otic symptoms in temporomandibular disorders from both anatomical and physiological points of view; it also(More)
INTRODUCTION In spite of its importance as an experimental model, the information on the left coronary artery in pigs is sparse. OBJECTIVE To determine the morphologic features of the left coronary artery in pigs. METHODS We evaluated 158 pig hearts. The left coronary artery was perfused with synthetic resin after their ostia had been catheterized.(More)
The bond between temporomandibular disorders and referred craniofacial symptomatology is more and more evident. In it subsists the prevailing necessity of understanding the temporomandibular disorders and the cranio-cervico-facial referred symptomatology from a neurophysiologic and muscle-skeletal perspective contained in the stomatognatic system. Diagnosis(More)
Digastric muscle is characterized by presenting occasional variations. The suprahyoid region of an 83 year-old male cadaver was dissected and an anatomic variation of the digastric muscle was observed in its anterior belly. It consisted of an accessory bilateral anterior belly originating in the intermediate tendon and inserted into the mylohyoid raphe. The(More)
The diagnosis of craniofacial pain is conditioned by the interdisciplinary management of its presentation especially in the absence of unique and objective signs. Bursitis is a pathological entity recently found in the hamular area and should be included in the diagnosis for exclusion of temporomandibular disorders (TMD), ear-nose-throat pathologies, due to(More)
Middle ear muscles have a common embryological and functional origin with masticatory and facial muscles. Therefore, symptoms referred to the ear may originate from the stomatognathic area. When a primary otological cause is discarded in the diagnostic work up for tinnitus, vertigo, hypoacousia, hyperacousia, ear pain or sensation of occluded ear, a(More)