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Variations of the cephalic vein anterior to the clavicle in humans

100%

Kameda S., Tanaka O., Terayama H., Kanazawa T., Sakamoto R., Tetsu S., Sakabe K.

Folia Morphologica

2018

tom 77

nr 4

Background: Clinicians should understand that jugulocephalic vein (JCV) variants may be occasionally found. This study aims to classify JCV variants and obtain their frequency. Materials and methods: We investigated anatomical variants of the cephalic vein in 55 human cadavers during a gross anatomy course at our medical school. Results: The percentage of JCVs that pass through the anterior part of the clavicle and anastomose to the jugular vein as per previous studies and our study was 2–5%. Five cases with anastomosis between the cephalic and external jugular veins that pass through the anterior part of the clavicle were found. The courses were classified into 1A, 1B, 2A, and 2B. Type 1 extends beyond the clavicle and anastomoses with the external jugular vein. Type 2 follows the same course as type 1, but anastomoses with the subclavian vein. Subtype A does not have a branch that anastomoses with the axillary vein, whereas subtype B does. We encountered two cases of type 1A and three of type 1B. Conclusions: Four anatomical variants of the cephalic vein around the clavicle were identified. Clinicians’ knowledge of these variants is expected to decrease possible complications if venous access via the cephalic vein is needed. (Folia Morphol 2018; 77, 4: 677–682)

Anomalous connection of the left posterior renal vein with the left ascending lumbar vein in a Japanese cadaver

68%

Terayama H., Yi S.-Q., Shoji S., Tanaka O., Kanazawa T., Kosemura N., Tamura M., Sekiguchi M., Naito M., Akamatsu T., Sakabe K.

Folia Morphologica

2015

tom 74

nr 4

A rare variation was found in one of the two left renal veins in a 94-year-old male cadaver undergoing routine dissection. The characteristic findings in the cadaver included, in addition to the primary left renal vein, the presence of a posterior left renal vein draining to the left ascending lumbar vein without communicating with the inferior vena cava and other renal veins. Variations in the number and arrangement of the vessels terminating in the renal veins are common, but to our knowledge, variation similar to our findings has not been previously reported. This variation may represent an immature form of the complicated development of the renal vessels. (Folia Morphol 2015; 74, 4: 544–547)

Common and separate origins of the left and right inferior phrenic artery with a review of the literature

68%

Terayama H., Yi S.-Q., Tanaka O., Kanazawa T., Suyama K., Kosemura N., Tetsu S., Yamazak H., Sakamoto R., Kawakami S., Suzuki T., Sakabe K.

Folia Morphologica

2017

tom 76

nr 3

In a 94-year-old male cadaver, upon which routine dissection was being conducted, a rare variation was found in the gastrophrenic trunk (GPT), the common trunk of the left gastric artery (LGA), right inferior phrenic artery (RIPA), and left inferior phrenic artery (LIPA); the GPT arises from the abdominal aorta. A hepatosplenic trunk accompanied the variation. In this variation, the RIPA first branched from the GPT and then to the LIPA and LGA. Variations in the common trunk of the LIPA and RIPA in the GPT are common, but to our knowledge, a variation (separate inferior phrenic artery in the GPT) similar to our findings has not been previously reported. We discuss the incidence and developmental and clinical significance of this variation with a detailed review of the literature. Knowledge of such a case has important clinical significance for invasive and non-invasive arterial procedures. Therefore, different variations concerning the LGA and inferior phrenic artery should be considered during surgical and non-surgical evaluations. (Folia Morphol 2017; 76, 3: 408–413)

Ograniczanie wyników

3 Folia Morphologica

3 Kanazawa T.

3 Sakabe K.

3 Tanaka O.

3 Terayama H.

2 Kosemura N.

2 Sakamoto R.

2 Tetsu S.

2 Yi S.-Q.

1 Akamatsu T.

1 Kameda S.

1 Kawakami S.

1 Naito M.

1 Sekiguchi M.

1 Shoji S.

1 Suyama K.

1 Suzuki T.

1 Tamura M.

1 Yamazak H.

1 2018

1 2017

1 2015

Wyniki wyszukiwania

Variations of the cephalic vein anterior to the clavicle in humans

Anomalous connection of the left posterior renal vein with the left ascending lumbar vein in a Japanese cadaver

Common and separate origins of the left and right inferior phrenic artery with a review of the literature