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Keywords:
Anatomy, Musculoskeletal soft tissue, MR, Diagnostic procedure, Infection, Metastases
Authors:
C. Uzun, A. Erden, E. Düşünceli Atman, E. Ustuner; Ankara/TR
DOI:
10.1594/ecr2014/C-1987
Aims and objectives
Parietal group of the internal iliac nodes is the gluteal lymph node group.
Gluteal lymph node group is localized at the fascial plane between gluteus maximus muscle and obturator internus muscle.
Gluteal lymph nodes are subdivided into two groups: inferior gluteal lymph nodes located along the inferior gluteal vein (figure 1); superior gluteal lymph nodes located along the superior gluteal vein.
Lymph from the deep tissues of the gluteal region drains into superior and inferior gluteal lymph nodes.
Ischioanal lymph nodes are localized at the ischioanal fossa at each side of anal canal (figure 2).
Lymphatics from the anal canal above the dentate line drain cephalad to the inferior mesenteric nodes via the superior rectal lymphatics.
And also laterally these lymphatics drain to the ischioanal lymph nodes along both middle rectal vessels and inferior rectal vessels.
Below the dentate line lymphatics of the anal canal usually drains to the inguinal lymph nodes.
If an obstruction occurs in the primary drainage these lymphatics can also drain to the superior rectal lymph nodes or along the inferior rectal lymphatics to the ischioanal lymph nodes.
Enlargement of these node groups can be detected by imaging methods.
Herein our aim is to portray the etiologic factors that caused enlargement of inferior gluteal and ischioanal lymph nodes.