Understanding the three-dimensional anatomy of the superficial lymphatics of the limbs.
Level 5 - mechanism / opinion, no new human data
Human cadaveric anatomical and histological study (mechanism/bench/ex vivo)
PubMed 25347638 · doi:10.1097/PRS.0000000000000640
What was done
Injection, microdissection, radiographic, and histologic examinations were performed on the superficial lymphatics and subcutaneous tissue layers of 32 limbs from 15 human cadavers.
What was found
Five consistent tissue layers were identified across all specimens: (1) skin, (2) subcutaneous fat, (3) superficial fascia, (4) loose areolar tissue, and (5) deep fascia. Subcutaneous fat was subdivided by a horizontal septum (layer 2b) into superficial (2a) and deep (2c) compartments. Main superficial veins and nerves ran in layer 4, while lymphatic collectors were located specifically in layers 2c and 4. The abstract provides no quantitative dimensions or measurements.
Why it matters
Defining the anatomical layers and depth of superficial lymphatic collectors helps guide lymphatic surgery, such as lymphovenous anastomosis, and informs surgical planes to avoid iatrogenic injury during body-contouring procedures.
Limits
Findings are based on a small sample of 15 non-living cadaver specimens, which may not reflect living physiology or altered tissue planes in chronic lymphedema. The abstract reports no quantitative measurements, vessel diameters, or demographic characteristics.
Cited by
- supports Deep lymphatic vessels are intimately associated with fascia surrounding skeletal muscles.