Morton Neuroma

Redd RA, Peters VJ, Emery SF et al (1989) Morton neuroma sonographic evaluation. Radiology 171 415-417 Reynolds DL Jr, Jacobson JA, Inampudi P et al (2004) Sonographic characteristics of peripheral nerve sheath tumors. AJR Am J Roentgenol 182 741-744 Ridley DS, Jopling WH (1966) Classification of leprosy according to immunity a five group system. Int J Leprosy 34 255-273... 

Morton neuroma is a painful condition that mainly occurs in middle-aged women and reflects a... 

When a Morton neuroma is suspected on clinical grounds, we select a dorsal approach to examine the web spaces because the skin (and especially the stratus corneus of the epidermis) over the dorsum of the foot is thinner than that of the sole and the attenuation of the US beam is less. The patient lies supine or seated on the bed with the knee extended and the ankle in a neutral position. The intermetatarsal spaces should be examined in sagittal planes applying firm pressure with the transducer on the dorsal aspect of the foot while exerting finger pressure in the web spaces from the plantar surface (Fig. 17.50). The thumb of the hand not holding the probe works well for this purpose. The examiner should invite... 

Fig. 17.54. Morton neuroma and intermetatarsal bursitis. Longitudinal 12-5 MHz US image obtained with a dorsal approach shows the neuroma as a fusiform solid hypoechoic mass (n) located just proximal to the bifurcation of the common digital nerve (arrowheads). Dorsal to it, fluid distension of the intermetatarsal bursa (asterisks) is seen, reflecting associated bursitis...

Wu KK (2000) Morton neuroma and metatarsalgia. Curr Opin Rheumatol 12 131-142... 

Zanetti M, Weishaupt D (2005) MR imaging of the forefoot Morton neuroma and differential diagnoses. Semin Musculoskelet Radiol 9 175-186... 

Zanetti M,Strehle JK, Zollinger H et al (1997) Morton neuroma and fluid in the intermetatarsal bursae on MR images of 70 asymptomatic volunteers. Radiology 203 516-520... 

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