Editing Anatomy: Groin and Inguinal (section)

== Inguinal Lymph Nodes ==
*'''<span style="color:#ff0000">Classified as superficial vs. deep inguinal nodes</span>'''
**'''<span style="color:#ff0000">Fascia lata of the thigh separates the superficial and deep inguinal nodes</span>'''
***Fascia lata is continuous with Scarpa fascia; transitions above the inguinal ligament
****Scarpa fascia is anterior to external oblique muscle
*<span style="color:#ff0000">'''Superficial inguinal nodes'''</span>
**'''Located deep to Camper’s fascia (also referred to as the superficial fascia) and superficial to the fascia lata (or deep fascia)'''
**Arranged parallel to the inguinal ligament
**Anatomic groups (5):
**#'''Central nodes around the saphenofemoral junction'''
**#'''Superomedial nodes''' around the superficial external pudendal and superficial epigastric veins
**##'''Drain the prepuce of the penis and the scrotum'''
**#'''Inferomedial nodes around the greater saphenous vein'''
**#Superolateral nodes around the superficial circumflex vein
**#Inferolateral nodes around the lateral femoral cutaneous and superficial circumflex veins
**5–17 lymph nodes in this area
**A study using single-photon emission computed tomography (SPECT) scanning to assess lymphatic drainage patterns found sentinel lymph nodes to be present in the superior and central zones, which suggested that all modified inguinal lymph node dissections should include these two regions[https://pubmed.ncbi.nlm.nih.gov/18502024/]
*<span style="color:#ff0000">'''Deep inguinal nodes'''</span>
**'''Lies deep to the fascia lata'''
**'''<span style="color:#ff0000">Arranged parallel and primarily medial to the femoral vein in the femoral canal'''
***Tend to be in close association with the femoral vein
**1-3 lymph nodes in this area
***'''<span style="color:#ff0000">Fewer in number, compared to superficial inguinal nodes'''
***'''Most cephalad of the deep inguinal nodes is the Node of Cloquet'''
****Node of Cloquet is
*****Almost always present
*****Located in the femoral canal between the femoral vein (medial to the femoral vein) and the lacunar ligament
******Lacunar ligament connects the inguinal ligament to the pectineal ligament
**Receives drainage from 
***Superficial group of lymph nodes
***Deep lymphatics that run with the femoral artery
***Glans of the penis and clitoris
**'''Drains into the pelvic nodes (namely, the external iliac, internal iliac, and obturator nodes'''