Chondroblastoma is an uncommon primary benign bone tumor that usually arises in the epiphyses of the long bones. Temporal
bone chondroblastoma is a rare primary bone tumor that affects the floor of the middle cranial fossa and temporomandibular
joint (TMJ). The biological nature of temporal bone chondroblastoma is occasionally aggressive because of local invasion and
is known to have a high recurrence after curettage. Therefore, complete resection is recommended. However, the literature
provides little information regarding long-term surgical outcomes and complications after surgical resection. The authors
have retrospectively analyzed four cases of temporal bone chondroblastoma that had been completely excised by a single surgeon
with an eventual long-term follow-up. A single surgeon operated on four patients, two males and two females, with a mean age
of 34 years, at the Department of Otorhinolaryngology, Severance Hospital. In all cases, the tumor involved the middle cranial
fossa dura and the mandibular fossa with variable degree of infiltration. All patients have had no tumor recurrence to date
(mean follow-up period of 5 years). Complete surgical resection of the temporal bone chondroblastoma is the gold standard
for treatment. Precise preoperative image evaluation of tumor extension and proper management of the dura mater and temporomandibular
joint (TMJ) are the major important features in complete surgical removal that minimize complications in temporal bone chondroblastoma
treatment.
Keywords Temporal bone - Chondroblastoma - Temporomandibular joint