Fibroma of tendon sheath of the hand in a 3-year-old boy: a case report
Abstract Background Fibroma of tendon sheath (FTS) is a rare benign soft tissue tumor that often occurs in the upper extremities. It manifests as a slow-growing mass, often without tenderness or spontaneous pain. FTS occurs most commonly in people aged 20–40 years and is extremely rare in young chil...
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| Format: | Article |
| Language: | English |
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BMC
2020-11-01
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| Series: | BMC Musculoskeletal Disorders |
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| Online Access: | http://link.springer.com/article/10.1186/s12891-020-03728-x |
| _version_ | 1819007946802069504 |
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| author | Hiroki Shibayama Yuichiro Matsui Daisuke Kawamura Atsushi Urita Chikako Ishii Tamotsu Kamishima Mutsumi Nishida Ai Shimizu Norimasa Iwasaki |
| author_facet | Hiroki Shibayama Yuichiro Matsui Daisuke Kawamura Atsushi Urita Chikako Ishii Tamotsu Kamishima Mutsumi Nishida Ai Shimizu Norimasa Iwasaki |
| author_sort | Hiroki Shibayama |
| collection | DOAJ |
| description | Abstract Background Fibroma of tendon sheath (FTS) is a rare benign soft tissue tumor that often occurs in the upper extremities. It manifests as a slow-growing mass, often without tenderness or spontaneous pain. FTS occurs most commonly in people aged 20–40 years and is extremely rare in young children. Because FTS presents with atypical physical and imaging findings, it might be misdiagnosed as another soft tissue tumor such as a ganglion cyst or tenosynovial giant cell tumor (TSGCT). Although marginal resection is usually performed, a high rate of local recurrence is reported. Case presentation A boy aged 3 years and 1 month visited our outpatient clinic with a complaint of a mass of the left hand. An elastic hard mass approximately 20 mm in diameter could be palpated on the volar side of his left little finger. This mass was initially diagnosed as a ganglion cyst at another hospital. Ultrasonography revealed a well-circumscribed hypoechoic mass with internal heterogeneity on the flexor tendon. On magnetic resonance imaging (MRI), the mass showed iso signal intensity to muscle on T1-weighted images, and homogeneously low signal intensity to muscle on T2-weighted images. The mass was peripherally enhanced after contrast administration. FTS was initially suspected as the diagnosis on the basis of these imaging features. Because of the limited range of motion of his little finger, surgery was performed when he was 4 years old. Histopathological findings indicated the mass was well-circumscribed and contained scattered spindle cells embedded in a prominent collagenous matrix. The spindle cells contained elongated and cytologically bland nuclei with a fine chromatin pattern. Nuclear pleomorphism and multinucleated giant cells were not observed. On the basis of these findings, we made a diagnosis of FTS. One year after surgery, no signs of local recurrence were observed. Conclusions We experienced an extremely rare case of FTS in the hand of a 3-year-old child. We especially recommend ultrasonography for hand tumors of young children to diagnose or eliminate ganglion cysts. MRI helped differentially diagnose FTS from TSGCT. Although marginal resection can be performed as a treatment, great care should be taken postoperatively because FTS has a high possibility of local recurrence. |
| first_indexed | 2024-12-21T00:32:40Z |
| format | Article |
| id | doaj.art-b619f6b7422d433085a82ae822d41238 |
| institution | Directory Open Access Journal |
| issn | 1471-2474 |
| language | English |
| last_indexed | 2024-12-21T00:32:40Z |
| publishDate | 2020-11-01 |
| publisher | BMC |
| record_format | Article |
| series | BMC Musculoskeletal Disorders |
| spelling | doaj.art-b619f6b7422d433085a82ae822d412382022-12-21T19:21:51ZengBMCBMC Musculoskeletal Disorders1471-24742020-11-012111610.1186/s12891-020-03728-xFibroma of tendon sheath of the hand in a 3-year-old boy: a case reportHiroki Shibayama0Yuichiro Matsui1Daisuke Kawamura2Atsushi Urita3Chikako Ishii4Tamotsu Kamishima5Mutsumi Nishida6Ai Shimizu7Norimasa Iwasaki8Department of Orthopedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido UniversityDepartment of Orthopedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido UniversityDepartment of Orthopedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido UniversityDepartment of Orthopedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido UniversityDepartment of Orthopedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido UniversityFaculty of Health Sciences, Hokkaido UniversityDivision of Laboratory and Transfusion Medicine / Diagnostic Center for Sonography, Hokkaido University HospitalDepartment of Surgical Pathology, Hokkaido University HospitalDepartment of Orthopedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido UniversityAbstract Background Fibroma of tendon sheath (FTS) is a rare benign soft tissue tumor that often occurs in the upper extremities. It manifests as a slow-growing mass, often without tenderness or spontaneous pain. FTS occurs most commonly in people aged 20–40 years and is extremely rare in young children. Because FTS presents with atypical physical and imaging findings, it might be misdiagnosed as another soft tissue tumor such as a ganglion cyst or tenosynovial giant cell tumor (TSGCT). Although marginal resection is usually performed, a high rate of local recurrence is reported. Case presentation A boy aged 3 years and 1 month visited our outpatient clinic with a complaint of a mass of the left hand. An elastic hard mass approximately 20 mm in diameter could be palpated on the volar side of his left little finger. This mass was initially diagnosed as a ganglion cyst at another hospital. Ultrasonography revealed a well-circumscribed hypoechoic mass with internal heterogeneity on the flexor tendon. On magnetic resonance imaging (MRI), the mass showed iso signal intensity to muscle on T1-weighted images, and homogeneously low signal intensity to muscle on T2-weighted images. The mass was peripherally enhanced after contrast administration. FTS was initially suspected as the diagnosis on the basis of these imaging features. Because of the limited range of motion of his little finger, surgery was performed when he was 4 years old. Histopathological findings indicated the mass was well-circumscribed and contained scattered spindle cells embedded in a prominent collagenous matrix. The spindle cells contained elongated and cytologically bland nuclei with a fine chromatin pattern. Nuclear pleomorphism and multinucleated giant cells were not observed. On the basis of these findings, we made a diagnosis of FTS. One year after surgery, no signs of local recurrence were observed. Conclusions We experienced an extremely rare case of FTS in the hand of a 3-year-old child. We especially recommend ultrasonography for hand tumors of young children to diagnose or eliminate ganglion cysts. MRI helped differentially diagnose FTS from TSGCT. Although marginal resection can be performed as a treatment, great care should be taken postoperatively because FTS has a high possibility of local recurrence.http://link.springer.com/article/10.1186/s12891-020-03728-xFibroma of tendon sheathSoft tissue tumor of a young child’s handPreoperative imaging studyCase report |
| spellingShingle | Hiroki Shibayama Yuichiro Matsui Daisuke Kawamura Atsushi Urita Chikako Ishii Tamotsu Kamishima Mutsumi Nishida Ai Shimizu Norimasa Iwasaki Fibroma of tendon sheath of the hand in a 3-year-old boy: a case report BMC Musculoskeletal Disorders Fibroma of tendon sheath Soft tissue tumor of a young child’s hand Preoperative imaging study Case report |
| title | Fibroma of tendon sheath of the hand in a 3-year-old boy: a case report |
| title_full | Fibroma of tendon sheath of the hand in a 3-year-old boy: a case report |
| title_fullStr | Fibroma of tendon sheath of the hand in a 3-year-old boy: a case report |
| title_full_unstemmed | Fibroma of tendon sheath of the hand in a 3-year-old boy: a case report |
| title_short | Fibroma of tendon sheath of the hand in a 3-year-old boy: a case report |
| title_sort | fibroma of tendon sheath of the hand in a 3 year old boy a case report |
| topic | Fibroma of tendon sheath Soft tissue tumor of a young child’s hand Preoperative imaging study Case report |
| url | http://link.springer.com/article/10.1186/s12891-020-03728-x |
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