The temporal bone in multiple myeloma.
Multiple myeloma is a malignant disease of the skeleton. Anatomically, any bone may ultimately come to be involved in a given case. In a literature review, no published series of temporal bone findings have been reported. In this study, oto-histopathologic changes associated with multiple myeloma are analyzed and reported in 15 temporal bones from 8 patients. The bone marrow of 13 temporal bones was involved by the tumor. Osteolysis was evident in 11 temporal bones. Serous otitis media (SOM) or purulent otitis media (POM) was seen in 13 ears with 12 showing mastoid effusions. Eight ears exhibited pathological changes in inner ears, including degeneration of the organ of Corti, atrophy of stria vascularis, decreased ganglion cells, and labyrinthine hydrops. The inner ear changes were most severe in 2 patients who had otologic symptoms. Infiltration of myeloma cells was not apparent in the middle ear mucosa or the inner ears.
Li
W
W
University of Minnesota Otitis Media Research Center, Department of Otolaryngology, Minneapolis.
Schachern
P A
PA
Morizono
T
T
Paparella
M M
MM
D000368:Aged; D000369:Aged, 80 and over; D007758:Ear, Inner / Q000473:pathology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009101:Multiple Myeloma / Q000150:complications / Q000473:pathology*; D010014:Osteolysis / Q000209:etiology; D010034:Otitis Media with Effusion / Q000209:etiology; D010035:Otitis Media, Suppurative / Q000209:etiology; D013701:Temporal Bone / Q000473:pathology* / Q000648:ultrastructure