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2015 ; 8
(9
): 11543-8
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Pattern of primary tumors and tumor-like lesions of bone in children:
retrospective survey of biopsy results
#MMPMID26617888
Özkan EA
; Göret CC
; Özdemir ZT
; Yan?k S
; Do?an M
; Gönülta? A
; Akkoca AN
Int J Clin Exp Pathol
2015[]; 8
(9
): 11543-8
PMID26617888
show ga
BACKGROUND: Although primary bone tumors are relatively uncommon, they constitute
the most important tumors in patients less than 20 years. We aimed to determine
the frequencies of primary bone tumors and tumor-like lesions of bone and the
anatomical sites of their occurrence. METHODS: A retrospective review of
histopathology reports of all bone specimens received in a private pathology
laboratory in Istanbul between 2009 and 2015. RESULTS: A total of 57 patients
(aged 5 to 18 years) with a mean of 13.12 years were studied. Thirty five
patients (61.4%) were males and 22 (38.6%) were females. Fifty five (94.4%) of
the tumors were benign. Osteochondroma was the commonest tumor accounting for 31
cases (54.3%) followed by osteoid osteoma, 9 cases (15.7%). Chondrosarcoma
observed in two patients and Ewing sarcoma in one patient as malignant tumors. Of
the 57 bone tumors 13 (22.8%) occurred in the upper extremities, while 44 (77.2%)
were in the lower extremities. Proximal humerus was the most commonly involved
site in upper extremity tumors, with osteochondromas representing the most
frequent type of tumor (4 patients; 7%). In the lower extremities again
osteochondromas were the most common type of tumor (8 cases, 14%), with the femur
being the most common site of involvement (18 patients, 31.5%). Of the patients
with tumor-like lesions; four patients had fibrous dysplasia, 4 patients had
non-ossified fibromas, 4 patients had simple bone cysts and 3 had aneurismal bone
cyst. CONCLUSION: This study showed that primary bone tumors were mainly benign,
settled predominantly in the lower extremities mostly in the femur with a male
preponderance. Osteochondroma was the most common benign bone tumor. We didn't
observed osteosarcoma, which is the most frequent malignant bone tumor.
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