case_images: PMC7276612_01
case_images: Anteroposterior radiograph of index finger showing soft tissue swelling but no bony involvement.
case_images: JOCR-9-63-g001.jpg
case_images: PMC7276612_01_JOCR-9-63-g001.jpg
case_images: F1
case_images: Plain radiographs were obtained which showed soft tissue swelling but no bony involvement (Fig. 1).
case_images: Clockwise from top left - Coronal view of the lesion on magnetic resonance imaging (MRI); sagittal views of lesion on MRI.
case_images: JOCR-9-63-g002.jpg
case_images: PMC7276612_01_JOCR-9-63-g002.jpg
case_images: F2
case_images: The patient was subsequently seen a couple of months later with increased swelling, and magnetic resonance imaging (MRI) was undertaken (Fig. 2).
case_images: Intraoperative images of excision of the lesion with flexor tendon sheath involvement and scalloping of the proximal phalanx.
case_images: JOCR-9-63-g003.jpg
case_images: PMC7276612_01_JOCR-9-63-g003.jpg
case_images: F3
case_images: A careful and thorough dissection was carried out with the use of magnification loupes, with subsequent flexor pulley reconstruction to allow easier flexor tendon excursion (Fig. 3).
case_images: Gross histological specimen measuring 2.1cm x 1.5 cm x 1.5 cm.
case_images: JOCR-9-63-g004.jpg
case_images: PMC7276612_01_JOCR-9-63-g004.jpg
case_images: F4
case_images: Abundant giant cells, foamy macrophages, and spindle cells in the background of collagen bundle.
case_images: JOCR-9-63-g005.jpg
case_images: PMC7276612_01_JOCR-9-63-g005.jpg
case_images: F5
case_images: Hemosiderin pigment was identified (Fig. 5).
case_images: PMC7276612_02
case_images: (a) Sagittal magnetic resonance imaging (MRI) view of the hand. Involving the skin and extending into the subcutaneous fat and reaching up to the flexor tendon sheath of the middle finger at the level of the metacarpophalangeal joint.(b) Axial view MRI showing subcutaneous lesion involving skin extending to the tendon sheath.
case_images: JOCR-9-63-g006.jpg
case_images: PMC7276612_02_JOCR-9-63-g006.jpg
case_images: F6
case_images: MRI imaging was utilized to further define the lesion, which showed an enhancing lesion involving the skin, extending into the subcutaneous tissue and involving the flexor tendon sheath of the middle finger at the MCP joint(Fig. 6a and b).
case_images: Sheets of mononuclear cells mixed with foamy macrophages and focal presence of osteoclastic type multinucleate cells evenly distributed in the fibrotic stroma.
case_images: JOCR-9-63-g007.jpg
case_images: PMC7276612_02_JOCR-9-63-g007.jpg
case_images: F7
case_images: The appearances were consistent with GCTTS (Fig. 7).