Extra‑articular synovial osteochondroma of the Hoffa's fat pad involving the patellar tendon: A case report and literature review

Hashimoto,Kazuhiko; Nishimura,Shunji; Yamagishi,Koutaro; Tsukamoto,Ichiro; Nakagawa,Koichi; Inoue,Shinji; Asada,Shigeki; Kakinoki,Ryosuke; Akagi,Masao

doi:10.3892/mco.2020.1998

April-2020 Volume 12 Issue 4

Full Size Image

Journals

International Journal of Molecular Medicine

International Journal of Molecular Medicine is an international journal devoted to molecular mechanisms of human disease.

International Journal of Oncology

International Journal of Oncology is an international journal devoted to oncology research and cancer treatment.

Molecular Medicine Reports

Covers molecular medicine topics such as pharmacology, pathology, genetics, neuroscience, infectious diseases, molecular cardiology, and molecular surgery.

Oncology Reports

Oncology Reports is an international journal devoted to fundamental and applied research in Oncology.

Experimental and Therapeutic Medicine

Experimental and Therapeutic Medicine is an international journal devoted to laboratory and clinical medicine.

Oncology Letters

Oncology Letters is an international journal devoted to Experimental and Clinical Oncology.

Biomedical Reports

Explores a wide range of biological and medical fields, including pharmacology, genetics, microbiology, neuroscience, and molecular cardiology.

Molecular and Clinical Oncology

International journal addressing all aspects of oncology research, from tumorigenesis and oncogenes to chemotherapy and metastasis.

World Academy of Sciences Journal

Multidisciplinary open-access journal spanning biochemistry, genetics, neuroscience, environmental health, and synthetic biology.

International Journal of Functional Nutrition

Open-access journal combining biochemistry, pharmacology, immunology, and genetics to advance health through functional nutrition.

International Journal of Epigenetics

Publishes open-access research on using epigenetics to advance understanding and treatment of human disease.

Medicine International

An International Open Access Journal Devoted to General Medicine.

April-2020 Volume 12 Issue 4

Full Size Image

Case Report Open Access

Extra‑articular synovial osteochondroma of the Hoffa's fat pad involving the patellar tendon: A case report and literature review

Authors:
- Kazuhiko Hashimoto
- Shunji Nishimura
- Koutaro Yamagishi
- Ichiro Tsukamoto
- Koichi Nakagawa
- Shinji Inoue
- Shigeki Asada
- Ryosuke Kakinoki
- Masao Akagi
View Affiliations / Copyright

Affiliations: Department of Orthopedic Surgery, Kindai University Hospital, Osaka‑Sayama, Osaka 589‑8511, Japan

Copyright: © Hashimoto et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
Pages: 355-357
|
Published online on: February 18, 2020

https://doi.org/10.3892/mco.2020.1998
Expand metrics +

Abstract

Synovial osteochondroma (SO) is a relatively uncommon tumor affecting the synovial joints that is characterized by the development of hyaline cartilage from the synovial membrane. The basic pathophysiology of SO is thought to be the metaplastic change of the synovium to hyaline cartilage. Large extra‑ or para‑articular lesions in the Hoffa's fat pad are relatively uncommon. A 56‑year‑old woman complained of knee pain associated with a large lesion on the anterior of the right knee. She also had restricted range of motion in the knee. Examination revealed an elastic hard 8x9‑cm lesion involving the patellar tendon. Computed tomography and magnetic resonance imaging demonstrated a mosaic‑intensity mass lesion in the inferior side of the Hoffa's fat pad as well as the patellar tendon. The patient underwent needle biopsy. Histological analysis revealed a solitary SO. There were no atypical features suggestive of malignancy and the mass was resected marginally. The patient had no recurrence or knee functional disorder 3 years postoperatively. There are no reports of SO involving the patellar tendon with restriction of range of motion. Removal of the mass lesion for management for SO, as in the present case, is unusual. To the best of our knowledge, this is the first case of extra‑articular SO in the Hoffa's fat pad involving the patellar tendon causing a restriction of range of motion of the knee. Marginal surgical resection improved knee function.

View Figures

View References

1	Trevino M, Laks S, Kafchinski L, Sundarakumar DK and Smith CM: Intermetatarsal bursa primary synovial chondromatosis: Case report and review of the literature. Skeletal Radiol. 46:1769–1773. 2017.PubMed/NCBI View Article : Google Scholar
2	Temponi EF, Mortati RB, Mortati GMH, Mortati LB, Sonnery-Cottet B and de Carvalho Júnior LH: Synovial chondromatosis of the knee in a 2-year-old Child: A case report and review of the literature. JBJS Case Connect. 6(e71)2016.PubMed/NCBI View Article : Google Scholar
3	Raval P, Vijayan A and Jariwala A: Arthroscopic retrieval of over 100 loose bodies in shoulder synovial chondromatosis: A case report and review of literature. Orthop Surg. 8:511–515. 2016.PubMed/NCBI View Article : Google Scholar
4	Ng VY, Louie P, Punt S and Conrad EU: Malignant transformation of synovial chondromatosis: A systematic review. Open Orthop J. 11:517–524. 2017.PubMed/NCBI View Article : Google Scholar
5	Lohmann CH, Köster G, Klinger HM and Kunze E: Giant synovial osteochondromatosis of the acromio-clavicular joint in a child. A case report and review of the literature. J Pediatr Orthop B. 14:126–128. 2005.PubMed/NCBI View Article : Google Scholar
6	Doral MN, Uzumcugil A, Bozkurt M, Atay OA, Cil A, Leblebicioglu G and Tetik O: Arthroscopic treatment of synovial chondromatosis of the ankle. J Foot Ankle Surg. 46:192–195. 2007.PubMed/NCBI View Article : Google Scholar
7	O'Connell L, Memon AR, Foran P, Leen E and Kenny PJ: Synovial chondroma in Hoffa's fat pad: Case report and literature review of a rare disorder. Int J Surg Case Rep. 32:80–82. 2017.PubMed/NCBI View Article : Google Scholar
8	Li C, Arger PH and Dalinka MK: Soft tissue osteochondroma. A report of three cases. Skeletal Radiol. 18:435–437. 1989.PubMed/NCBI View Article : Google Scholar
9	Kautz FG: Capsular osteoma of the knee joint. Report of four cases. Radiology. 45:162–167. 1945. View Article : Google Scholar
10	Krebs VE and Parker RD: Arthroscopic resection of an extrasynovial ossifying chondroma of the infrapatellar fat pad: End-stage Hoffa's disease? Arthroscopy. 10:301–304. 1994.PubMed/NCBI View Article : Google Scholar
11	Turhan E, Doral MN, Atay AO and Demirel M: A giant extrasynovial osteochondroma in the infrapatellar fat pad: End stage Hoffa's disease. Arch Orthop Trauma Surg. 128:515–519. 2008.PubMed/NCBI View Article : Google Scholar
12	Ogura K, Goto T, Nemoto T and Imanishi J: Para-articular osteochondroma of the infrapatellar fat pad. J Knee Surg. 24:209–213. 2011.PubMed/NCBI View Article : Google Scholar
13	Sakai H, Tamai K, Iwamoto A and Saotome K: Para-articular chondroma and osteochondroma of the infrapatellar fat pad: A report of three cases. Int Orthop. 23:114–117. 1999.PubMed/NCBI View Article : Google Scholar
14	Osti L, Papalia R, Del Buono A, Denaro V and Maffulli N: Recurrence of synovial chondromatosis of the Hoffa's body. Knee Surg Sports Traumatol Arthrosc. 17:1421–1424. 2009.PubMed/NCBI View Article : Google Scholar
15	Maljanovič M, Ristič V, Rasovič P, Matijevič R and Milankov V: Solitary synovial chondromatosis as a cause of Hoffa's fat pad impingement. Med Pregl. 68:49–52. 2015.PubMed/NCBI View Article : Google Scholar
16	Lee DH and Jeong TW: Uncommon primary synovial chondromatosis involving only the infrapatellar fat pad in an elderly patient. Knee Surg Relat Res. 28:79–82. 2016.PubMed/NCBI View Article : Google Scholar
17	Sheldon PJ, Forreste DM and Learch TJ: Imaging of intraarticular masses. Radiographics. 25:105–119. 2005.PubMed/NCBI View Article : Google Scholar
18	Maheshwari AV, Muro-Cacho CA and Pitcher JD Jr: Extraskeletal para-articular osteochondroma of the posterior knee. J Knee Surg. 22:30–33. 2009.PubMed/NCBI View Article : Google Scholar
19	Bashaireh KM: Patellar subluxation with early-phase synovial chondromatosis of the knee. Orthopedics. 39:e176–e179. 2016.PubMed/NCBI View Article : Google Scholar

Journals

International Journal of Molecular Medicine

International Journal of Oncology

Molecular Medicine Reports

Oncology Reports

Experimental and Therapeutic Medicine

Oncology Letters

Biomedical Reports

Molecular and Clinical Oncology

World Academy of Sciences Journal

International Journal of Functional Nutrition

International Journal of Epigenetics

Medicine International

Extra‑articular synovial osteochondroma of the Hoffa's fat pad involving the patellar tendon: A case report and literature review

This article is mentioned in:

Abstract

Figure 1

Figure 2

Related Articles