Eminentia retrotrochlearis
Pseudotumoural
soft tissue lesions of the foot and ankle: a pictorial review. Accessory muscle: peroneus quartus. Axial T1-WI at the level of the subtalar joint (a) and slightly below (b). Peroneus quartus (long arrow) positioned posteromedial to tendons of the long (short arrow) and short (arrowhead) peroneal muscle. Several types of peroneus quartus are described based on the distal insertion, which can be onto the peroneal tubercle or the retrotrochlear eminence of the calcaneus, and less frequently the cuboid, the peroneus longus or the inferior peroneal retinaculum
The retrotrochlear eminence is located posterior to the peroneal tubercle and the peroneal tendons.
It is one of two bony projections or protuberances that may be seen arising from the lateral wall of the calcaneum, the other being the peroneal tubercle.
It is seen to be prominent in individuals with a hypertrophied peroneus quartus muscle, the most frequently reported accessory peroneal muscle. The muscle arises from the inferolateral aspect of the fibula and has variable insertions, one of them being the retrotrochlear eminence.
Related Radiopaedia articles
Anatomy: Lower limb
- skeleton of the lower limb
- joints of the lower limb
- hip joint
- ligaments
- muscles
- additional structures
- hip joint capsule
- zona orbicularis
- iliotibial band
- hip bursae
- anterior
- iliopsoas bursa (iliopectineal bursa)
- lateral
- subgluteal bursae
- greater trochanteric bursa (subgluteus maximus bursa)
- subgluteus medius bursa
- subgluteus minimus bursa
- gluteofemoral bursa
- subgluteal bursae
- postero-inferior
- anterior
- ossification centers
- knee joint
- ligaments
- anterior cruciate ligament
- posterior cruciate ligament
- medial collateral ligament
- lateral collateral ligament
- meniscofemoral ligament (mnemonic)
- posterolateral ligamentous complex
- arcuate ligament
- patellar tendon and quadriceps tendon
- anterolateral ligament
- posterior oblique ligament
- oblique popliteal ligament
- medial patellofemoral ligament
- additional structures
- ossification centers
- ligaments
- tibiofibular joints
- ankle joint
- regional anatomy
- medial ankle
- lateral ankle
- anterior ankle
- ligaments
- medial collateral (deltoid) ligament
- lateral collateral ligament
- additional structures
- ankle bursae
- ossification centers of the ankle
- variants
- regional anatomy
- foot joints
- subtalar joint
- articulations
- ligaments
- associated structures
- mid-tarsal (Chopart) joint
- tarsometatarsal (Lisfranc) joint
- ligaments
- intermetatarsal joint
- metatarsophalangeal joint
- interphalangeal joint
- ossification centers
- subtalar joint
- hip joint
- spaces of the lower limb
- muscles of the lower limb
- muscles of the pelvic group
- inner hip group
- gluteal region
- lateral rotator group
- muscles of the thigh
- muscles of the leg
- anterior compartment of the leg
- posterior compartments of the leg
- lateral compartment of the leg
- muscles of the foot
- dorsal muscles
- plantar muscles
- 1st layer
- 2nd layer
- 3rd layer
- 4th layer
- accessory muscles
- muscles of the pelvic group
- vascular supply of the lower limb
- arterial supply of the lower limb
- venous drainage of the lower limb
- deep system
- superficial system
- great saphenous vein
- dorsal venous plexus
- small saphenous vein
- lateral marginal vein
- great saphenous vein
- venous drainage of the foot
- innervation of the lower limb
- lymphatic system of the lower limb
- lymphatic pathways
- anteromedial group
- anterolateral group
- posteromedial group
- posterolateral group
- lower limb lymph nodes
- lymphatic pathways
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Assoziationen und Differentialdiagnosen zu Eminentia retrotrochlearis: