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Case Reports
. 2023 Apr 20;15(4):e37863.
doi: 10.7759/cureus.37863. eCollection 2023 Apr.

Coexisting Benign Tumors in a Finger Are Rare but Not Impossible

Efstratios D Athanaselis  1 , Efstathios Konstantinou  1 , Alexandros Koskiniotis  1 , Theofilos Karachalios  1 , Sokratis Varitimidis  1
Affiliations
Case Reports

Coexisting Benign Tumors in a Finger Are Rare but Not Impossible

Efstratios D Athanaselis et al. Cureus. .

Abstract

Giant cell tumors of the tendon sheath (GCTTS) and enchondroma are identified as the most prevalent benign soft tissue and bone tumors of the hand. While their individual presence is a common finding, their concurrent appearance in the same anatomic region is exceptionally rare, making simultaneous diagnosis more burdensome. We present a noteworthy case of GCTTS and enchondroma in the index finger of a young patient, along with the therapeutic strategy for correct diagnosis and effective treatment of such an occurrence.

Keywords: benign hand tumors; bone grafts; enchondroma; excisional biopsy; giant cell tumor.

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Conflict of interest statement

The authors have declared that no competing interests exist.

Figures

Figure 1
Figure 1. Face (A) and profile (B) x-rays of the left index finger. Enchondroma is obvious in both X-rays. The distal phalanx lump is nearly marked in both X-rays (arrows).
Figure 2
Figure 2. T1-weighted (A) and T2-weighted (B) MRI images of the index finger
Figure 3
Figure 3. (A) Dorsal approach, fenestration of the proximal phalanx, and extraction of cartilaginous pathological tissue. (B) distal radius donor site for autografts. (C) The medullary cavity is filled with autografts and DBM paste. (D) The cortical window is closed.
Figure 4
Figure 4. Microscopic examination of the excised lesions revealed the following regarding GCT: (A) an admixture of giant cells, foamy macrophages, and round mononuclear cells, along with areas with cleft-like spaces (hematoxylin and eosin stain, 100x magnification); (B) giant cells and foamy macrophages stained positively with immunostain for CD68 (200x magnification). Regarding the enchondroma, there is a mass of hyaline cartilage in lobular formation, areas with myxoid change of the stroma, abundant hyaline cartilaginous matrix (hematoxylin and eosin stain, 200x magnification) (C), and chondrocytes with densely staining nuclei and small eosinophilic cytoplasm arranged in the lacunae in a haphazard fashion (hematoxylin and eosin stain, 400x magnification) (D).
Figure 5
Figure 5. Face (A) and profile (B) x-rays of the hand, five weeks postoperatively
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References

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