Letter to the Editor

Hip- and pelvic-related intraneural ganglia

Restricted access

If the inline PDF is not rendering correctly, you can download the PDF file here.

Article Information

Please include this information when citing this paper: published online April 23 Day, 2010; DOI: 10.3171/2010.3.JNS10189.

© AANS, except where prohibited by US copyright law.

Figures

  • View in gallery

    Case 1. Reinterpretation of preoperative MR images from a previously reported example of a sciatic intraneural ganglion cyst. A: Axial T2-weighted fast spin echo (FSE) image with fat suppression demonstrating an intraneural cyst (asterisk) within the sciatic nerve at the level of the sciatic notch. B: Axial T2-weighted FSE image with fat suppression obtained at the level of the sacrum, showing a cyst within the left lumbosacral plexus (arrow) and denervation change in the gluteus minimus muscle (plus signs). C: Axial short-tau inversion-recovery (STIR) image obtained at the hip/greater trochanter level, showing the joint connection of the intraneural cyst to the posteroinferior hip joint capsule (arrows). Fluid is present within the joint (arrowhead).

  • View in gallery

    Case 1. Reinterpretation of postoperative MR images from a previously reported example of a sciatic intraneural ganglion cyst. A: Axial STIR image obtained at the level of the sciatic notch, showing a residual intraneural cyst within the sciatic nerve (arrow). B: Axial STIR image demonstrating a persistent cyst within the left lumbosacral plexus (arrow), just anterior to the sacrum. Note denervation of the gluteus minimus muscle (plus signs). C: Axial STIR image obtained at the level of the hip, showing the persistent joint connection and intraneural cyst at the posterior hip joint capsule (arrow). Note fluid within the joint (arrowhead).

  • View in gallery

    Case 2. Reinterpretation of preoperative MR images from a previously reported example of a superior gluteal intraneural ganglion cyst. A: Axial T2-weighted spin echo (SE) image obtained at the level of the hip joints, demonstrating an intraneural cyst arising from the mid-posterior right hip (arrow). B: Axial T2-weighted SE image showing a cyst within the superior gluteal nerve (curved arrow) and the lumbosacral plexus (arrowhead). C: Oblique coronal maximum intensity projection (MIP) image obtained from a T2-weighted SE data set, showing the cyst arising from the hip joint (arrow) and extending superiorly into the superior gluteal nerve (curved arrow) and lumbosacral plexus (arrowhead). D: Coronal MIP image obtained from a T2-weighted SE data set, showing the full extent of cyst extension into the superior gluteal nerve (curved arrow) as well as into the lumbosacral plexus (arrowhead).

  • View in gallery

    Drawing showing the proposed pathways for posterior hip-derived intraneural and extraneural ganglion cysts. The predominant proximal extension and balloon-like expansion seen on the MR images in Case 1 (sciatic intraneural ganglion) and Case 2 (superior gluteal intraneural ganglion) are typical features of intraneural ganglion cysts.

References

  • 1

    Gardner E: The innervation of the hip joint. Anat Rec 101:3533711948

  • 2

    Jacobs RRMaxwell JAKepes J: Ganglia of the nerve. Presentation of two unusual cases, a review of the literature, and a discussion of pathogenesis. Clin Orthop 113:1351441975

    • Search Google Scholar
    • Export Citation
  • 3

    Kampa RJPrasthofer ALawrence-Watt DJPattison RM: The internervous safe zone for incision of the caspule of the hip. A cadaver study. J Bone Joint Surg Br 89:9719762007

    • Search Google Scholar
    • Export Citation
  • 4

    Krishnan KGSchackert G: Intraneural ganglion cysts: a case of sciatic nerve involvement. Br J Plast Surg 56:1831862003

  • 5

    Moreau J: Kyste du nerf crural. Société Savantes Société d'anatomie pathologique de Bruxelles 24:2082091910

  • 6

    Sakka AKotani HMiki Y: [A case report of intraneural ganglion of the sciatic nerve.]. Clin Orthop Surg 30:67701994. (Jpn)

  • 7

    Spinner RJAmrami KKHamlat A: Collaborative follow-up. Acta Neurochir (Wien) 150:93962008. (Letter)

  • 8

    Spinner RJAmrami KKWolanskyj APDesy NMWang HBenarroch EE: Dynamic phases of peroneal and tibial intraneural ganglia formation: a new dimension added to the unifying theory. J Neurosurg 107:2963072007

    • Search Google Scholar
    • Export Citation
  • 9

    Spinner RJHébert-Blouin MNTrousdale RTMidha RRussell SMYamauchi T: Intraneural ganglia in the hip and pelvic region. Clinical article. J Neurosurg 111:3173252009

    • Search Google Scholar
    • Export Citation
  • 10

    Spinner RJMokhtarzadeh ASchiefer TKKrishnan KGKliot MAmrami KK: The clinico-anatomic explanation for tibial intraneural ganglion cysts arising from the superior tibiofibular joint. Skeletal Radiol 36:2812922007

    • Search Google Scholar
    • Export Citation
  • 11

    Spinner RJScheithauer BWAmrami KK: The unifying articular (synovial) origin of intraneural ganglia: evolution-revelation-revolution. Neurosurgery 65:4 SupplA115A1242009

    • Search Google Scholar
    • Export Citation
  • 12

    Sugita MTerauchi TKusuzaki KHirasawa T: [Intraneural ganglion arising from the superior gluteal nerve preoperatively diagnosed by MRI: a case report.]. Orthopedics Trauma Surgery 40:991021997. (Jpn)

    • Search Google Scholar
    • Export Citation
  • 13

    Swartz KWilson DBoland MFee DB: Proximal sciatic nerve intraneural ganglion cyst. Case Reports Med 2009:8109732009

  • 14

    Uchida AHoriguchi AIde HHatakeyama NYoshimura IOgawa Y: Mucoid pseudocyst of the obturator nerve. Int J Urol 13:4714722006

    • Search Google Scholar
    • Export Citation

TrendMD

Metrics

Metrics

All Time Past Year Past 30 Days
Abstract Views 90 90 6
Full Text Views 113 102 0
PDF Downloads 173 164 0
EPUB Downloads 0 0 0

PubMed

Google Scholar