case_images: PMC11258579_01
case_images: Nodular swelling (thick black arrow) of size 1 x 2 cm noted along the inner aspect of the right distal medial arm.
case_images: qmj-2024-03-036-g001.jpg
case_images: PMC11258579_01_qmj-2024-03-036-g001.jpg
case_images: fig1
case_images: A soft, nodular swelling of size 1 x 2 cm was also seen at the inner aspect of the distal right arm (Figure 1).
case_images: (A) Longitudinal gray scale, (B) Longitudinal color Doppler, (C) Axial gray scale, and (D) Axial color Doppler ultrasound images. Well-defined irregular-shaped hypoechoic lesion (star) with internal debris noted adjacent to the ulnar nerve (thick white arrows), not showing vascularity on color Doppler study.
case_images: qmj-2024-03-036-g002.jpg
case_images: PMC11258579_01_qmj-2024-03-036-g002.jpg
case_images: fig2
case_images: On ultrasonography (USG) (Figures 2A-D), there was a well-defined irregular-shaped hypoechoic lesion with internal debris noted adjacent to the ulnar nerve on the inner aspect of the distal right arm, measuring approximately 1.0(AP) x 1.2(TR) x 3.1(CC) cm.
case_images: (A) Axial T2-weighted, (B) Coronal T1-weighted, (C) Coronal STIR, (D) Axial fat-suppressed T1-weighted post-contrast, (E) Coronal fat-suppressed T1-weighted post-contrast, and (F) Sagittal fat-suppressed T1-weighted post-contrast MRI images. T1 isointense, T2/STIR hyperintense lesion (thick white arrows) noted in the medial aspect of the distal right arm in the subcutaneous plane showing peripheral rim enhancement on T1 post-contrast scan.
case_images: qmj-2024-03-036-g003.jpg
case_images: PMC11258579_01_qmj-2024-03-036-g003.jpg
case_images: fig3
case_images: (A)&(B): Cytopathological examination. Collection of epithelioid cells, lymphocytes, plasma cells and cyst macrophages with necrotic background.
case_images: qmj-2024-03-036-g004.jpg
case_images: PMC11258579_01_qmj-2024-03-036-g004.jpg
case_images: fig4
case_images: The patient was followed up with a cytopathological examination of the swelling, which showed a collection of epithelioid cells, lymphocytes, plasma cells, and cyst macrophages with a necrotic background (Figures 4A, B).