Chondroblastoma with associated aneurysmal bone cyst of the cuboid

INTRODUCTIONChondroblastoma (CB) is a rare, benign, cartilaginous lesion of the bones that accounts for less than 1% of primary bone tumours.(1,2) It typically develops from the epiphysis of skeletally immature patients. (3,4) Peak incidence of CB is seen in the second decade of life, (5,6) and has been reported to occur more frequently in men than in women. (5,(7)(8)(9)(10) Although CB has a predilection for tubular bones such as the humerus, femur, tibia and metatarsus, (7,11) it can also be found in non-tubular bones (NTBs) such as flat bones (i.e. skull, maxilla and pelvis) (7) and epiphysoid bones (i.e. trapezium, (12) cuboid, (13,14) talus (15,16) and patella (17) ).Multifocal benign CB has also been reported. METHODSThis study was approved by the ethics committee at the Ramathibodi Hospital, Bangkok, Thailand (ID-10-52-01). We retrospectively reviewed the medical records of all patients with pathologically proven CB at our hospital during a 37-year period . A total of 31 patients (16 men; 15 women)

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“…skull, maxilla and pelvis) (7) and epiphysoid bones (i.e. trapezium, (12) cuboid, (13,14) talus (15,16) and patella (17) ).…”

Section: Introductionmentioning

confidence: 99%

Radiological findings in 31 patients with chondroblastoma in tubular and non-tubular bones

Jaovisidha

Siriapisith²,

Chitrapazt³

et al. 2013

smedj

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“…In the foot, the incidence is greater in men and the age is older than that with chondroblastoma elsewhere (7, 8, 13, 14). In this case report, the age of the patient was in the usual age range, 24 years old (the usual age of chondroblastoma is 10-30 years), while 80% of ABCs present before the age of 20 (14) and giant cell tumor present after 30 (15). Secondly, the lesion of chondroblastoma is slightly expansible with a well-defined margin and a sclerotic rim (13).…”

Section: Discussionmentioning

confidence: 99%

“…Secondly, the lesion of chondroblastoma is slightly expansible with a well-defined margin and a sclerotic rim (13). However, the lesion of ABC and giant cell tumor often appears more aggressively with an exaggeration of bone expansion and cortical thinning following cortical deficit (14). As for this tumor, the lesion presented similar to ABC and giant cell tumor, which could cause misdiagnosis.CT and MRI techniques are helpful in making the differential diagnosis.…”

Section: Discussionmentioning

confidence: 99%

Chondroblastoma of the Navicular Bone

Peng

Zhao

et al. 2014

Iran J Radiol

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This is a case report of a 24-year-old man who presented with increased pain and firm swelling of the right foot after a minor twisting injury. Radiography, computed tomography (CT) and magnetic resonance imaging (MRI) findings showed ancillary information that was helpful for surgical treatment. The final diagnosis was confirmed as chondroblastoma of the navicular bone based on the pathology report. The navicularbone is a very rare site in the foot, where we should pay attention to chondroblastoma.

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“…19,20 Chondroblastomas with secondary ABC have been reported in the hands and feet. 21,22 In such cases, the clinical and histologic pattern of ABC can predominate with mural nodules of chondroblastoma. The presence of secondary aneurysmal bone cyst was previously thought to increase the risk of local recurrence.…”

Section: Discussionmentioning

confidence: 99%