An unusual topographic relationship between high origin of superficial ulnar artery and bitendinous palmaris longus
AbstractThe ulnar artery usually arises from the brachial artery at the cubital fossa. It descends beneath the flexor carpi ulnaris in the forearm and then terminates at the wrist joint by forming the superficial palmar arch with the contributory radial artery. In the present study, we report a more proximal origin of ulnar artery presenting a superficial course in the lower portion of the upper extremity, termed superficial ulnar artery. Interestingly, this artery lies superficially to a bitendinous palmaris longus, a variant muscle in the forearm. The relation between arterial and muscular variations may be useful during...
Source: Anatomical Science International - August 9, 2021 Category: Anatomy Source Type: research
A rare case of thoracic renal artery
AbstractIdentifying of variations of renal vascular anatomy is important for radical surgery, endovascular intervention, and renal transplantation. While there are common normal variations of renal vascular anatomy, such as accessory renal arteries, a main renal artery that originates from the thoracic aorta (thoracic renal artery) is remarkably rare. The majority of reported cases of thoracic renal artery were right side, except two cases reported on 1980 and 2016. The author reports a rare case of left renal artery originating from the thoracic aorta. (Source: Anatomical Science International)
Source: Anatomical Science International - August 9, 2021 Category: Anatomy Source Type: research
Anomalous atrium associated with persistent left superior vena cava
AbstractPersistent left superior vena cava (PLSVC) is the most common venous anomaly with an incidence of 0.3 –0.5% in the general population. Here, we report a rare case of PLSVC with anomalous atrium in a cadaver during the student′s dissection session at the University of Tsukuba. In this case, the coronary sinus had merged with the right atrium to form an enlarged sac-like structure and received sys temic venous flow including inflow from the PLSVC. The roof of the coronary sinus with the right atrium was thicker than that of the control cases. We further found that the distance between the sinoatrial node and the ...
Source: Anatomical Science International - August 9, 2021 Category: Anatomy Source Type: research
Common hepatic artery originating from superior mesenteric artery with replaced right hepatic artery
In conclusion, this case can be considered a rare case in which the replaced common hepatic artery and replaced right hepatic artery occurred simultaneously. The coexisting of these two replaced arteries suggests that the developmental processes to form these variations are independent. (Source: Anatomical Science International)
Source: Anatomical Science International - August 9, 2021 Category: Anatomy Source Type: research
Correction to: Anatomical variation in the form of inter ‑ and intra‑individual laterality of the calcaneofibular ligament
A correction to this paper has been published: https://doi.org/10.1007/s12565-021-00617-8 (Source: Anatomical Science International)
Source: Anatomical Science International - August 9, 2021 Category: Anatomy Source Type: research
Letter to Editor re (2020 Sep;95(4):564 –570)
(Source: Anatomical Science International)
Source: Anatomical Science International - August 4, 2021 Category: Anatomy Source Type: research
Morphometric characteristics of the sphenoid sinus and potential influencing factors: a retrospective assessment using cone beam computed tomography (CBCT)
In conclusion, the present findings indicate that age, gender and sinus condition have a significant impact on the morphometric characteristics of the SS. Mature sinuses exhibit a post-sellar extension pattern until middle age. In addition, males, and sinuses with hea lthy sinus condition have larger volumes compared to females and pathological sinuses. (Source: Anatomical Science International)
Source: Anatomical Science International - July 7, 2021 Category: Anatomy Source Type: research
Arterial blood supply patterning of the mammary sentinel lymph nodes with special reference to the relation of the formation mechanism of the superficial subscapular artery
This study aimed to conduct a detailed anatomical examination of the arterial supply to level Ib lymph nodes corresponding to mammary sentinel lymph nodes. This was achieved by focusing on the relationship with course changes of the axillary artery trunk using 41 cadavers (49 axillae). The course patterns of the axillary artery were classified as: “Standard type,” which penetrate the brachial plexus (occurrence rate, 51%); “Superficial brachial artery type,” which ran along the superficial layer of the brachial plexus (2%); “Superficial subscapular artery (SSbsA) type,” which entered the deep layer without pene...
Source: Anatomical Science International - July 5, 2021 Category: Anatomy Source Type: research
Morphologic classification and innervation patterns of the pectineus muscle
This study serves to advance the existing anatomical knowledge about the pectineus muscle, which is of clinical value. (Source: Anatomical Science International)
Source: Anatomical Science International - June 22, 2021 Category: Anatomy Source Type: research
Anatomical work-up of an individual with multiple muscular variants on both forearms
AbstractMuscular variants of the forearm are common and frequently cause neurovascular compression syndromes, especially when interfering with the compact topography of the carpal tunnel or the Canalis ulnaris. Here, we report on a male body donor with multiple muscular normal variations on both forearms. The two main findings are (1) an accessory variant muscle (AVM) on the right forearm originating from theM. brachioradialis, the distal radius, and theM. flexor pollicis longus. It spanned the wrist beneath theFascia antebrachia and inserted at the proximal phalanx of thedigitus minimus. (2) Moreover, we found a three-hea...
Source: Anatomical Science International - June 16, 2021 Category: Anatomy Source Type: research
Microsurgical anatomy of the cranial nerve-centric triangles of the posterior cranial base: cadaveric and radiological anatomical study
The objectives of this study were to: (1) provide a review of historical anatomically based vascular-centric triangles of the posterior fossa based on respective neurovascular complexes; (2) introduce a more organized alternative system of triangles with the conceptualization of a projection system from superficial to deep; and (3) propose and describe two new triangles of the posterior fossa: Petrous-Acousticofacial and Acousticofacial-Trigeminal. Five cadavers were studied. Neurovascular complexes were described with the use of anatomically guided cranial nerve-centric triangles, each of which was formed by cranial nerve...
Source: Anatomical Science International - June 16, 2021 Category: Anatomy Source Type: research
A new interpretation of the human embryo drawings in Icones Embryonum Humanorum by Samuel Thomas Soemmerring
AbstractIn 1799, Samuel Thomas Soemmerring published the bookIcones Embryonum Humanorum, which was one of the first attempts in history to sort out prenatal human development chronologically. Despite its importance for the anatomical sciences, there is little information aboutIcones. In this context, our objective was to identify and estimate the developmental age of the seven human embryos present inIcones Embryonum Humanorum by external morphological analysis and morphometry of the drawings using Image-J® software. First, the book was translated from Latin. Then, the developmental age was estimated by external morpholog...
Source: Anatomical Science International - June 1, 2021 Category: Anatomy Source Type: research
Effect of age and sex on femoral curvature in the Japanese population: three-dimensional computed tomography findings
This study aimed to investigate femoral curvature in detail in Japanese individuals using three-dimensional computed tomography, evaluate its effects on the position of proximal femur, and assess differences in femoral curvature according to age and sex. We measured sagittal and coronal femoral bowing in 40 elderly (mean age 85.2 years) and 40 adult (mean age 30.1 years) Japanese individuals using computed tomography. In adult individuals, the radii of the femoral curvatures of the distal end and shaft in the coronal planes were significantly smaller in women than in men. In contrast, no significant difference was obser...
Source: Anatomical Science International - June 1, 2021 Category: Anatomy Source Type: research
Anatomic characterization of the tibial and fibular nutrient arteries in humans
In this study, we elucidated the origin and extra-osseous course of tibial and fibular nutrient arteries based on the 54 cadaveric legs. The tibial nutrient artery typically arose from the posterior tibial artery. Some of the tibial nutrient arteries arose from the anterior tibial, popliteal, and fibular arteries. The tibial nutrient artery arose from these parent arteries as a long descending branch. It penetrated the most proximal portion of the tibialis posterior or flexor digitorum longus to enter the tibial nutrient foramen. The fibular nutrient artery arose from the fibular artery as a short descending branch in all ...
Source: Anatomical Science International - June 1, 2021 Category: Anatomy Source Type: research
