In the late stage, termed mature, myositis ossificans is depicted as an elongated calcific deposit that is aligned with the long-axis of the muscle, exhibits acoustic shadowing, and has no soft tissue mass associated. US may suggest the diagnosis at early stage, but imaging features need to evolve with successive maturation of the lesion and formation of the characteristic late stage changes before they become pathognomonic.The differential diagnosis includes many tumoral and nontumoral pathologies. A main concern is to differentiate early myositis ossificans from malignant soft-tissue tumors, and the latter is suggested by a fast-growing process. If clinical or sonographic findings are dubious and extraosseous sarcoma is suspected, biopsy should be performed. At histology, detection of the typical zonal phenomenon is diagnostic of myositis ossificans, though microscopic findings may be misleading during the early stage. Radiologic  diagnosis
The radiological features of myositis ossificans are ‘faint soft tissue calcification within 2–6 weeks, (may have well-defined
bony margins by 8 weeks) separated from periosteum by lucent zone and on CT, the characteristic feature is peripheral ossification’. Management
Since myositis ossificians is more common in those with bleeding disorders, the formation of bone in soft tissue is thought to be associated with haematoma formation. As the calcifications will typically resolve after a period of time, non-surgical treatment is encouraged to minimize the unpleasant symptoms and maximize the function of the affected limb.Following a skeletal muscle injury, the affected limb should be immobilized with bed rest, ice therapy, compression, and elevation of the affected limb.
Amebic encephalitis may refer to:

Primary amoebic meningoencephalitis
Granulomatous amoebic encephalitis