Arch Hand Microsurg.  2018 Dec;23(4):262-266. 10.12790/ahm.2018.23.4.262.

Intratendinous Fibroma with a Flexor Profundus Tendon Tear in the Finger of an Adolescent Baseball Player: A Case Report

• Kim KJ
• Lee JH

• KMID: 2427392
• DOI: http://doi.org/10.12790/ahm.2018.23.4.262

Abstract

Flexor digitorum profundus (FDP) tears in adolescents appear as avulsion tears in the FDP tendon, whereas longitudinal tears are very rare. Moreover, there has been only one reported case of intratendinous fibroma occurring in the flexor tendon of a finger. A longitudinal tear of the flexor profundus tendon associated with an intratendinous fibroma has not been previously reported. We report one case of a longitudinal partial tear accompanied by an intratendinous fibroma at the FDP tendon of the left middle finger after a hyperextension injury caused by the impact of a baseball. Given the rarity of longitudinal flexor tendon tears in adolescents, in such cases, the possibility of an underlying pathology should be considered.

Keyword

Finger; Flexor digitorum profundus; Intratendinous fibroma

MeSH Terms

Adolescent*
Baseball*
Fibroma*
Fingers*
Humans
Pathology
Tears*
Tendons*

Figure

• 

  Fig. 1 Magnetic resonance image showing a longitudinal partial tear of the middle flexor digitorum profundus tendon and an intratendinous tumor (arrow).

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  Fig. 2 Intraoperative photograph showing a longitudinal split of the flexor digitorum profundus (FDP) tendon and the intratendinous tumor (arrow).

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  Fig. 3 Histopathologic finding of intratendinous fibroma. (A) Low-power view (H&E stain, ×100) showing numerous hyalinized fibrous tissues. (B) High-power view (H&E stain, ×400) showing scattered fibroblasts with large irregular nuclei.

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