Ultrasound Imaging of Plantar Pathology
Transcription
Ultrasound Imaging of Plantar Pathology
DR NIRAJ DUBEY KHOO TECK PUAT HOSPITAL SINGAPORE •Large variety of lesions with different ways of classification •Benign/malignant, tumours/infections/inflammations etc, etc •Relevant- decreasing scale of occurrence from commonest to rarest •Vast majority are benign, tumours whether benign/ malignant very rare •Commonest patient types are middle aged to elderly , usually females who do a lot •of manual labour •Young athletic individuals •Fibromas •Ganglions, synovial cysts, (epidermoid cysts) •Plantar fasciitis, cellulitis •Intermetatarsal bursa, adventitial bursa •Morton’s neuroma •Callus, abscess eg diabetic foot •Foreign body granuloma •Joint diseases with swelling eg arthritis •Tenosynovitis •Lipomas •Subcutaneous nodules eg gout, rheumatoid •Stress reactions/callus formation •Vascular lesions eg haemangiomas, AVMs, lymphangiomas •Granuloma annulare •Tumours such as PVNS, leiomyomas •Ultrasound features and echogenecity relate to internal contents •Most lesions are iso to hypoechoic to adjacent tissues and are solid •Cystic lesions have a range of appearances-from anechoic in a simple ganglion cyst to varying internal echogenecity depending upon cyst complications such as infection, hemorrhage-accoustic enhancement •Infections such as tenosynovitis, cellulitis, abscess as well as arthritic inflammations will have different levels of vascularity and are well demonstrated by colour and power doppler •Vascular lesions such as AVMs will show flow •Special procedures will show certain lesion eg Mulder’s test for Morton’s neuroma and intermetatarsal bursa/bursitis •High frequency probe- 7- 15 MHz •Scan in two planes •Plantar fascia- scan along the length of fascia •Tendons and their sheaths are to be scanned in the longitunal and transverse planes •Transverse scan for Intermetatarsal bursitis and Morton’s neuroma •Look at a foreign body granuloma from all directions •Ganglions and cysts – adjacent vascular structures should be defined for the surgeon, also try to demonstrate the neck of a cyst and it’s relation to underlying joint/ bone /synovial sheath •Use doppler liberally and compare opposite side if needed, always correlate with plain x ray Ultrasoundpaedia.com Plantar fasciiitis Plantar fascia tear Ultrasoundpaedia.com Plantar fibromas Ultrasoundpaedia.com Plantar fibroma Morton’s neuroma and Intermetatarsal bursitis, differentials Mulder’s manoeuvre Ultrasoundpaedia.com bursitis Submetatarsal Ultrasoundpaedia.com Adventitial or frictional bursa Ultrasound cases.info Copyright © Dr. T.S.A. Geertsm Ziekenhuis Gelderse Vallei, Ede, The Netherlands. Foreign body Ultrasoundpaedia.com Ganglion cysts Ganglion cysts Ultrasound cases.info Copyright © Dr. T.S.A. Geertsma, Ziekenhuis Gelderse Vallei, Ede, The Netherlands. Gouty tophus Ultrasoundpaedia.com Inflammatory changes, rheumatoid nodules heel Ultrasound cases.info Copyright © Dr. T.S.A. Geertsma, Ziekenhuis Gelderse Vallei, Ede, The Netherlands. Plantar lipoma Ultrasound cases.info Copyright © Dr. T.S.A. Geertsma, Ziekenhuis Gelderse Vallei, Ede, The Netherlands. Rheumatoid nodule Rheumatoid nodule Nodular fasciitis FHL tenosynovitis, arthritis of joint Flexor digitorum tenosynovitis Ultrasound cases.info Copyright © Dr. T.S.A. Geertsma, Ziekenhuis Gelderse Vallei, Ede, The Netherlands. Epidermoid cyst foot Pseudotumoural soft tissue lesions of the foot and ankle: a pictorial review Erik Van Hul,1 Filip Vanhoenacker, 1,2 Pieter Van Dyck,1 Arthur De Schepper,1 and Paul M. Parizel1 Insights IInsightsnsights Imaging. 2011 August; 2(4): 439–452. Imaging 2011 Aug Plantar plate Ultrasoundpaedia.com ?Nodular lesion left 2 nd MT GCTTS plantar aspect, third toe, longitudinal and transverse view Ultrasound cases.info Copyright © Dr. T.S.A. Geertsma, Ziekenhuis Gelderse Vallei, Ede, The Netherlands. Arterio venous malformation