Intracapsular Chondroma of the Knee: An Unusual Neoplasm

Rodríguez‐Peralto, José Luis; López-Barea, Fernando; Gonzalez-Lopez, J.

doi:10.1177/106689699700500108

Cited by 13 publications

(9 citation statements)

References 19 publications

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“…The clinical picture is most associated earlier pain type of infra-patellar discomfort without modification of articular amplitudes associated to a sensation of instability of the knee especially in up and down stairs. At an advanced stage, a palpable mass more or less visible on clinical examination can be objectified [9]- [11]. The infiltration of corticosteroids in early stage of disease may be offered as a preoperative proposition [12].…”

Section: Discussionmentioning

confidence: 99%

Arthroscopic Resection of a Chondroma of the Hoffa Fat Pad: Case Report and Review of Literature

Hiba¹,

Mouha²,

Belmoubarik³

et al. 2015

OALib

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The Hoffa's disease is a rare and little-known cause of anterior knee pain. It was first reported by Albert Hoffa in 1904. It is due to chronic impingement of fat pad Hoffa between the femur and the tibia during knee extension. The formation of the Hoffa's chondroma appears to be the final phase of acute-chronic transformation process of this disease. We present a case of chondroma of Hoffa which received complete resection under arthroscopy. We show in this work the clinical appearance, radiological and pathological chondroma of the Hoffa.

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Section: Discussionmentioning

confidence: 99%

Arthroscopic Resection of a Chondroma of the Hoffa Fat Pad: Case Report and Review of Literature

Hiba¹,

Mouha²,

Belmoubarik³

et al. 2015

OALib

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“…Large osteochondromas involving the joint capsule or para-articular soft tissues adjacent to a joint are rare osteocartilaginous tumors, first described by Jaffe in 1958 [ 11 ]. Subsequently, these lesions have been reported using various terms such as para-articular osteochondroma [ 2 , 5 , 10 ], intracapsular chondroma [ 6 ], para-articular chondroma [ 7 , 8 ], giant extrasynovial osteochondroma [ 9 ], Hoffa's disease [ 4 ] and giant intra-articular osteochondroma [ 1 ]. In both our cases, the neoformation was interposed between the joint capsule externally and the synovial membrane internally, and at histological examination the mass was characterized by trabecular bone tissue surrounded by hyaline cartilage.…”

Section: Discussionmentioning

confidence: 99%

Giant Intra-Articular Extrasynovial Osteochondroma of the Knee: A Report of Two Cases

Maio¹,

Bisicchia²,

Potenza³

et al. 2011

TOORTHJ

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We report two cases of a giant extrasynovial osteochondroma of the knee located in the infrapatellar fat pad region, in two females who were 58 and 71 years old respectively. Both patients had noticed the mass many years before our first clinical observation. In both patients, at physical examination a solid, firm and hard mass was palpable in the anterior part of the knee in Hoffa’s fat pad region, and the range of motion of the knee was severely restricted and painful. CT scan examination with 3D-reconstruction showed two large, calcified neoformations behind the patellar tendon, between the apex of the patella and the proximal third of the tibia. In both cases, the mass was completely resected surgically through an anterior longitudinal approach. At histological examination, the excised masses consisted of an outer layer of hyaline cartilage without significant chondrocyte atypia and an inner region of bone trabeculae formed by endochondral ossification. At follow-up, 8 and 4 years after the operation, both patients were pain-free, with complete recovery of the range of motion of the knee and without any clinical or radiographic evidence of recurrence. The authors believe that intra-articular extrasynovial osteochondroma of the knee is a primary metaplasia of Hoffa’s fat pad. Usually, the tumor develops slowly and asymptomatically over many years. The treatment of choice is a marginal resection of the mass, although a biopsy should be considered in some cases. Recurrences are extremely rare.

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“…Para-articular osteochondroma is an extremely rare entity, and only 32 cases have been reported in the English literature with various synonyms including paraarticular chondroma, ossification of infrapatellar fat pad, and capsular osteoma. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18] Most patients are in the fifth or sixth decade at presentation, and there is no sex predilection. In the majority of cases, the lesions are slowgrowing, and the patients usually present with several years' history of a palpable mass, mild anterior knee pain or discomfort, and restricted range of motion.…”

Section: Discussionmentioning

confidence: 99%

“…Cartilaginous or osseous metaplasia from extrasynovial mesenchymal cells appears to be the primary cause. 6,11,19 Furthermore, Wickham et al have demonstrated the derivation of multipotential stromal cells from the infrapatellar fat pad, and they have illustrated that the infrapatellar fat pad of the adult knee contains progenitor cells that have the ability to differentiate into chondrocytes, osteoblasts, or adipocytes. 20 The association between minor injury and the formation of a paraarticular osteochondroma has been reported.…”

Section: Discussionmentioning

confidence: 99%

“…the infrapatellar fat pad are rare, and only 32 cases have been reported. But various descriptive terms including ''para-articular chondroma,'' [1][2][3][4][5][6][7][8] ''para-articular osteochondroma,'' 4,7,[9][10][11][12][13][14][15][16] ''ossification of infrapatellar fat pad,'' 17 and ''capsular osteoma'' 18 have been assigned to these lesions. This confusion in the nomenclature has caused difficulty in precisely diagnosing an osteochondral lesion arising from this region.…”

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confidence: 99%

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Para-articular Osteochondroma of the Infrapatellar Fat Pad

Goto¹,

Nemoto²,

Imanishi³

2011

J Knee Surg

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We report a rare case of para-articular osteochondroma of the infrapatellar fat pad. A 56-year-old woman presented with a 2-year history of mild anterior knee pain and a hard mass around the right knee. Plain radiographs and computed tomography revealed trabeculated ossification within the infrapatellar fat pad. We performed surgery through an open approach. The mass was located within the infrapatellar fat pad and did not communicate with the joint space or patellar tendon. The gross appearance of the tumor resembled an osteochondroma. On microscopic examination, it was composed of cartilaginous tissue with areas of multifocal endochondral ossification surrounded by fibrous connective tissue. There was no synovial tissue. We diagnosed it as a para-articular osteochondroma of the infrapatellar fat pad. In the literature, this entity is rare. Differential diagnosis includes a variety of bone-forming lesions including malignancy. Definitive diagnosis is made by combining clinical, radiologic, and histologic findings.

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Intracapsular Chondroma of the Knee: An Unusual Neoplasm

Cited by 13 publications

References 19 publications

Arthroscopic Resection of a Chondroma of the Hoffa Fat Pad: Case Report and Review of Literature

Arthroscopic Resection of a Chondroma of the Hoffa Fat Pad: Case Report and Review of Literature

Giant Intra-Articular Extrasynovial Osteochondroma of the Knee: A Report of Two Cases

Para-articular Osteochondroma of the Infrapatellar Fat Pad

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