Haglund syndrome
Last updated by drk on 06/11/2009 03:00 AM (Read: 173 times)
Represent painful condition caused by mechanically induced retrocalcaneal bursitis, superficial Achilles bursitis and Achilles tendonopathy by exostosis at posterosuperior calcaneus (Haglund's deformity). Exostosis at posterosuperior calcaneus can compress the retrocalcaneal structures during dorsal flexion.
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Plantar Fibromatosis (Ledderhose disease) case 2
Last updated by drk on 06/04/2009 03:00 AM (Read: 190 times)
Plantar fibromatosis (Ledderhose disease) occurs most frequently between the ages of 30 and 50 years, with bilateral involvement seen in 20%–50% of cases. These lesions are located in the plantar subcutaneous tissues of the foot, which are generally associated with the superficial surface of the medial portion of the plantar aponeurosis. Plantar fibromatosis is often asymptomatic until the lesion enlarges and causes mass effect or invades adjacent muscles or neurovascular structures.
The typical MR imaging appearance of plantar fibromatosis on T1-weighted and T2-weighted images is heterogeneous mass with an overall signal intensity equal to or slightly greater than that of adjacent muscle. The enhancement with gadolinium contrast material is variable, with marked enhancement seen in approximately 50% of lesions. The uniqueness of these signal intensity characteristics and the consistency of the location and morphology exhibited by plantar fibromatosis enable diagnoses to be made with reasonable confidence. Differential includes clear-cell sarcoma, callus, scar, and the subcalcaneal hypointense foci can also be enhanced. The majority of plantar fibromas show marked enhancement when gadolinium is administered, and administration of this contrast agent may be useful in evaluation of the extent of infiltration or in detection of small lesions, which may be overlooked on unenhanced images.
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Galeazzi fracture/dislocation of the left forearm
Last updated by drk on 06/02/2009 06:37 PM (Read: 164 times)
Galeazzi fractures are isolated fractures of the junction of the distal third and middle third of the radius with associated subluxation or dislocation of the DRUJ.
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Melorheostosis
Last updated by drk on 04/15/2009 07:45 PM (Read: 417 times)
Melorheostosis is a rare nonhereditary sclerosing mesenchymal dysplasia of bone originally described in 1922 by Leri and Joanny. It is usually incidentally discovered in asymptomatic adults. The common reference to this abnormality as having a "flowing candle wax" appearance. One or multiple adjacent bones are often affected, often in a sclerotomal distribution. Nucleide scintigraphy cases of melorheostosis demonstrate a region of increased nucleide uptake. MR imaging demonstrate regions of decreased signal intensity on all pulse sequences.
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Glenoid hypoplasia/dysplasia
Last updated by drk on 01/19/2009 08:51 PM (Read: 1032 times)
Glenoid dysplasia is a rare developmental disorder that was initially described by Valentine in 1931. The basic radiographic findings in glenoid hypoplasia is underdevelopment of the inferior aspect of the scapular neck and glenoid rim. In the more severe forms, the inferior portion of the glenoid appears confluent with the lateral scapular border.
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