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Year : 2003  |  Volume : 49  |  Issue : 1  |  Page : 75-7

Adamantinoma of tibia: a case of late local recurrence along with lung metastases.

Department of Surgery, Kifissia Oncological Hospital Agii Anargiri, Kaliftaki, Kato Kifissia, Athens, Greece. , Greece

Correspondence Address:
D K Filippou
Department of Surgery, Kifissia Oncological Hospital Agii Anargiri, Kaliftaki, Kato Kifissia, Athens, Greece.
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0022-3859.923

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 :: Abstract 

Adamantinomas of long bones are rare primary low-grade malignant tumours composed of cells with epithelial and fibrous characteristics. Local recurrence, though scarce, occurs 5-15 years after the onset of diagnosis. We report a case of local recurrence of an adamantinoma localised in tibia, along with the presence of two lung metastases, 24 years after diagnosis and surgical therapy of the primary tumour. The local recurrence and the lung metastases were removed surgically. The patient remains free of the disease for 3 years.

Keywords: Adult, Ameloblastoma, diagnosis,pathology,surgery,Bone Neoplasms, pathology,surgery,Case Report, Female, Human, Lung Neoplasms, secondary,surgery,Neoplasm Recurrence, Local, pathology,surgery,Tibia, pathology,surgery,

How to cite this article:
Filippou D K, Papadopoulos V, Kiparidou E, Demertzis N T. Adamantinoma of tibia: a case of late local recurrence along with lung metastases. J Postgrad Med 2003;49:75

How to cite this URL:
Filippou D K, Papadopoulos V, Kiparidou E, Demertzis N T. Adamantinoma of tibia: a case of late local recurrence along with lung metastases. J Postgrad Med [serial online] 2003 [cited 2023 Jun 3];49:75. Available from:

Adamantinomas of the appendicular skeleton, which account for 0.3 to 1% of all malignant bone tumours, are low-grade slow-growing neoplasms probably of mixed mesenchymal and epithelial nature, which develop in the diaphyses and metaphyses of long bones with a predilection for tibia and occasionally fibula. They are usually observed between 20 and 40 years of age and show a predilection for male (male/female ratio 1.3:1, with slightly more aggressive course of disease in males). Pathologically these tumours show a wide range of morphologic patterns, which can mimic many primary or metastatic bone lesions as well as osteofibrous dysplasia, while the true relationship between them still remains to be elucidated.[1] The near-benign nature of adamantinoma, in terms of biological aggressiveness, is reflected on the prolonged period of vague symptoms before diagnosis and good survival rates even after the diagnosis of local recurrence or metastases.[1],[2]

  ::   Case report Top

A 42 years old female patient was admitted to the hospital with a swelling on the right tibia. Past history revealed that the patient was operated upon 24 years ago for a pathological fracture of the right tibia and the diagnosis at that time had been adamantinoma. The preoperative radiograph of the right leg showed osteolysis of the bone [Figure - 1] and the chest radiograph revealed lung metastases. Regional computed tomography (CT) of the right leg showed that the tumour was invading the surrounding soft tissues. The cortex appeared moderately expanded and attenuated [Figure - 2]. Bone scanning showed intensive positivity in the middle of the right tibia. The CT scan of the thorax demostrated two lung metastases. One of these was in close contact with the right anterior pulmonary artery and the other was located in the left posterior lobe. Fine needle aspiration (FNA) biopsy confirmed the diagnosis of adamantinoma of right tibia suggesting local recurrence.

The patient underwent surgery wherein the tumour was widely resected and the tibia reconstructed with specific recombined osteosynthesis (salvage surgery). The pathological examination of the excised tumour confirmed the diagnosis of adamantinoma set by FNA biopsy [Figure - 3]. The histological examination revealed a multiforming adamantinoma with basaloid, spindle cellular, and tubular characteristics. Examination of the adamantinoma that had been excised earlier revealed the same characteristics. The post-operative period was without complications and the patient walked in 15 days. The patient underwent two more surgical operations, a right anterior lobectomy of the lung with plastic restoration of the pulmonary artery, and a left posterior lobectomy. Lung infiltration also showed features of adamantinoma. Three years later the patient remains symptom- free of the disease.

  ::   Discussion Top

This case report refers to an atypical clinical course of an adamantinoma of the tibia. Although lung metastases have been reported in the literature, information concerning the time needed for them evolve is inadequate.[3],[4] In our case, the local recurrence as well as occurrence of lung metastasis were considerably delayed.

The most common symptoms include a slowly evolving swelling (dull pain that is never very intense) and pathologic fractures. . The tumor usually metastasises to the lungs or to the bones. Although uncommon, haemoptysis could be the first symptom to denote lung involvement.[5]

As far as radiographic features are concerned, the commonest appearance is that of multiple, sharply circumscribed lucent zones of various sizes, with sclerotic bone interspersed between the zones and extending above and below the lucent zones. Sometimes the radiographic aspects of adamantinoma are similar to those of osteofibrous dysplasia of tibia.[6]

MRI is useful in differentiating between adamantinoma from osteofibrous dysplasia. On plain radiographs, both of them may show polycyclic osteolysis refereed to as soap-bubble appearance. MRI can give information not only on the extent of the tumor, but also about its origin.[7]

The pathological diagnosis of adamantinoma can be confusing as the appearance of the tumour varies remarkably. More often, a mixture of several patterns is observed in each case. The main histological types are :

a. Basaloid type: Cords and islands of cells similar to basal cell carcinoma.

b. Spindle cellular type: Similar to the above, but with no peripheral palisading layer.

c. Tubular type: Small ramified tubules or alveolar cavities, matted by cubic-cylindrical cells, in one or more layers.

d. Squamocellular type: At times, but not frequently, there are nodules of squamous cells.[8]

It is not very unusual for more than one type to exist in the same specimen. In our case the tumour showed different patterns and these patterns were found in both tibia and lung. The diagnosis of adamantinoma is difficult due to the rarity and the multiplicity of histological features. The differential diagnoses include epithelial metastasis, hemangioendothelioma, fibrous and osteofibrous dysplasia. In cases of doubt, the diagnosis should be ascertained by the use of FNA.[9],[10]

The surgical procedure included wide resection of the tumor in healthy tissues and salvage surgery, with combined osteosynthesis (screws, acrylic cement in a unique body). This technique offers stability and thus early remobilization of the patient within a mean time of two weeks. This allows the fastest recovery of the patient, needed especially where additional surgical interventions are indicated (e.g. for removal of metastases).

The development of late metastases is not unusual in inadequately treated patients.

 :: References Top

1.Johnson LC. Congenital pseudoarthrosis, adamantinoma of long bone, and intracortical fibrous dysplasia of the tibia. J Bone Joint Surg 1972;54:1355-13. (Abstract)  Back to cited text no. 1    
2.Gedhardt MC, Lord FC, Rosenberg AE, Mankin HJ. The treatment of adamantinoma of the tibia by wide resection and allograft bone transplantation. J Bone Joint Surg 1987;69:1177-88.  Back to cited text no. 2    
3.Moon NF, Mori H. Adamantinoma of the appendicular skeleton: Updated. Clin Orthop Rel Res 1986;204:215-34.  Back to cited text no. 3    
4.Van Schoor JX, Vallaeys JH, Joos GF, Roels HJ, Pauwels KA, Van der Straeten ME. Adamantinoma of the Tibia with Pulmonary Metastases and Hypercalcemia. Chest 1991;100:279-81.  Back to cited text no. 4    
5.Enneking WF. The staging system for benign and malignant tumors of muskoloskeletal system (Appendix A). Clinical Muskoloskeletal Pathology. Florida: University Press of Florida;1990. pp451-466.  Back to cited text no. 5    
6.Dameron TB. Adamantinoma of the appendicular skeleton. Johns Hopkins Med 1979;145:107-11.  Back to cited text no. 6    
7.Judmaier W, Peer S, Krejzi T, Dessl A, Kuhberger R. MR Findings in Tibial Adamantinoma. A case report. Acta Radiol 1998;39:276-88.  Back to cited text no. 7    
8.Campanacci M, Giounti A, Bertoni F, Laus M, Gitelis S. Adamantinoma of the long bones:The experience at the Instituto Ortopedico Rizzoli. Am J Surg Pathol 1981;5:533-42.  Back to cited text no. 8    
9.Alguasil-Garcia A, Alonso A, Pettigrew NM. Osteofibrous dysplasia (ossyfying fibroma) of the tibia and fibula and adamantinoma. Am J Clin Pathol 1984;82:470-4.  Back to cited text no. 9    
10.Mirra JM. Adamantinoma and osteofibrous dysplasia in Bone Tumors. Clinical, Radiologic and Pathologic Correlations. Philadelphia: Lea and Febiger: 1989. pp. 1204-31.  Back to cited text no. 10    


[Figure - 1], [Figure - 2], [Figure - 3]

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