PMC6419255_01
(a) AP and oblique views of the left hand. (b) Spot AP and oblique views of the ring finger. Observe the distal phalanx of the ring finger was completely destroyed by the lesion. Note that the articular cartilage remained intact.. AP: anteroposterior.
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Anteroposterior (AP) and oblique views of the left hand showed an osteolytic lesion that destroyed almost the entire distal phalanx of the ring finger (Figure 1).
Macroscopic observation of the amputated phalanx. On gross examination the distal phalanx was found to have been completely replaced by a tan, resilient tumor.
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An open biopsy of the tip of the left ring finger was performed and the left ring finger was amputated through the distal third of the middle phalanx (Figure 2).
Microscopic findings of metastatic moderately differentiated adenocarcinoma with a strong desmoplastic reaction. Note the cells with atypical and hyperchromatic nuclei and abundant and clear cytoplasm. (a) HE, 20x. (b) HE, 40x.
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Pathology confirmed the presence of a moderately differentiated adenocarcinoma (Figure 3).