case_images: PMC5312193_01
case_images: Lesion with nodular aspect next to the proximal nail fold on the third
  right finger. Convexity and depressions on the plate
case_images: abd-92-01-0121-gf01.jpg
case_images: PMC5312193_01_abd-92-01-0121-gf01.jpg
case_images: f1
case_images: Adjacent skin revealed a mild erythema (Figure 1).
case_images: On translucency examination, presence of translucent circular areas
  forming halos
case_images: abd-92-01-0121-gf02.jpg
case_images: PMC5312193_01_abd-92-01-0121-gf02.jpg
case_images: f2
case_images: On translucency examination, the lesion became more evident and well defined (Figure 2).
case_images: Surgical exploration revealed multilobulated tumor with smooth and shiny
  surface in xanthomatous tissue
case_images: abd-92-01-0121-gf03.jpg
case_images: PMC5312193_01_abd-92-01-0121-gf03.jpg
case_images: f3
case_images: We performed an uneventful excision of the nailfold (Figure 3).
case_images: Histiocytic proliferation forming giant cells similar to osteoclasts.
  Presence of macrophages, collagen, and hyaline fibrous tissue
  (Hematoxylin & eosin x10)
case_images: abd-92-01-0121-gf04.jpg
case_images: PMC5312193_01_abd-92-01-0121-gf04.jpg
case_images: f4
case_images: Histopathology revealed multinucleated giant cells surrounded by round cells and collagen rich hypocellular areas, as well as areas with xanthomatous histiocytes in surrounded by round cells, suggesting the diagnosis of tenosynovial giant cell tumor (Figures 4 and 5).
case_images: Xanthomatous histiocytic differentiation. Proliferation of histiocytes
  and fibroblasts in xanthomatous areas (Hematoxylin & eosin x10)
case_images: abd-92-01-0121-gf05.jpg
case_images: PMC5312193_01_abd-92-01-0121-gf05.jpg
case_images: f5
case_images: Histopathology revealed multinucleated giant cells surrounded by round cells and collagen rich hypocellular areas, as well as areas with xanthomatous histiocytes in surrounded by round cells, suggesting the diagnosis of tenosynovial giant cell tumor (Figures 4 and 5).
case_images: Satisfactory postopera - tive evolution without signs of recurrence after
  two months
case_images: abd-92-01-0121-gf06.jpg
case_images: PMC5312193_01_abd-92-01-0121-gf06.jpg
case_images: f6
case_images: The patient presented good postoperative evolution without signs of local recurrence to date (Figure 6).