TITLE:
Large Conventional Osteosarcoma of the Proximal Humerus in a 13-Year-Old Child: Case Report
AUTHORS:
Lucienne Irène Patricia Ondima, Rhodia Hélène Bosseba Missengue, Cardinale Princilia Okiemy Niendet, Nuptia Erica Akobande, Jean Claude Mieret, Caryne Mboutol-Mandavo, Redy Atipo Galloye, Judith Nsondé Malanda, Jennifer Mave Sirimé Ngandzo, Fabien Mouamba
KEYWORDS:
Osteosarcoma, Child, Conventional, Case Report
JOURNAL NAME:
Open Journal of Pediatrics,
Vol.14 No.2,
March
13,
2024
ABSTRACT: Introduction: Osteosarcoma is the most common primary malignant
bone tumor in children. It is highly aggressive and has a poor prognosis. A
late presentation modifies and makes difficult the management affecting the
survival of children. We report the case of a large conventional osteosarcoma
in a 13-year-old girl. Case Presentation: Adolescent girl admitted for
painful swelling of the left shoulder with absolute functional impotence of the
thoracic limb and severe anemia. The painful swelling was thought to have been
caused by a minor trauma that had occurred six months previously. The patient’s general condition was poor, and she
presented with a large, shiny, painful mass over the shoulder and upper
2/3 of the left arm, measuring 28 cm long by 28 cm wide and 57 cm in circumference,
and a large fistulous axillary adenopathy. CT scan showed a tumour lesion of
the left humerus with liver and lung metastases, raising suspicion of
osteogenic osteosarcoma. The tumor was classified according to TNM staging:
T2N1M1(a + b). Management was modified when uncontrolled bleeding developed. It
consisted of an extended amputation of the left thoracic limb. Pathological
analysis showed a high-grade conventional
osteosarcoma. Quality improvement was obtained for thirty days, followed
by the onset of dyspnea. The evolution was towards death at forty days
post-operatively. Conclusion: Osteosarcoma is a highly aggressive
cancer. Delayed treatment leads to a fatal outcome. Early diagnosis is one of
the challenges to be met in order to improve survival.