Solitary Plasmacytoma of the Mastoid Bone Presenting as Coalescent Mastoiditis

Solitary plasmacytomas of the occipital bone: a report of two cases

“…A lobulated osteolytic lesion as seen in case 1 was demonstrated in another small skull-base plasmacytoma of the mastoid bone [17]. The MRI findings have rarely been described [11,17,18]. Signal intensities on MRI in our cases were similar to those of previously reported cases.…”

“…The radiographic appearance has been described in many cases [7][8][9][10][13][14][15] and the CT features reported by some authors [9,10,[15][16][17][18]]. An osteolytic lesion without a sclerotic rim, a hyperdense tumour with or without peripheral bone fragments, and marked and homogeneous postcontrast enhancement are common and characteristic CT findings, which were also observed in our cases.…”

“…We add two cases of solitary plasmacytoma in the occipital bone. Both cases showed characteristic radiological appearances similar to those of previously reported cases [5,11,[13][14][15][16][17][18]. They were angiographically hypervascular.…”

“…An osteolytic lesion without a sclerotic rim, a hyperdense tumour with or without peripheral bone fragments, and marked and homogeneous postcontrast enhancement are common and characteristic CT findings, which were also observed in our cases. A lobulated osteolytic lesion as seen in case 1 was demonstrated in another small skull-base plasmacytoma of the mastoid bone [17]. The MRI findings have rarely been described [11,17,18].…”

A case of solitary plasmacytoma of the mastoid bone presenting as coalescent mastoiditis

“…Typical osteolytic skull lesions, the 'perforation appearance'like findings may be detected in multiple myeloma. Discrimination between the tumor and the fluid is ensured by the hypointense appearance of mass compared to fluids in T2 weighted MR images of solitary plasmacytoma and a homogenous involvement is observed in the mass after intravenous contrast administration 3 . Preoperative radiological assessment of our case was interpreted as local infection.…”