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Adult upper-limb forearm lymphoma hygroma (cystic lymphangioma): A case report.
International Journal of Surgery Case Reports 2023 April 15
INTRODUCTION: Lymphoma hygroma (LH) that is the most common type of lymphangioma, but it rarely occurs in the forearm. It may show localized invasive behavior, but is benign.
CASE PRESENTATION: A 42-year-old woman presented to our hospital with a growing strip-like mass in the right forearm that had been detected 3 years earlier. Ultrasound examination showed a subcutaneous strip of low back vocal cords on the right forearm. Further magnetic resonance imaging (MRI) showed irregular strip-like dilated lymphatic vessels characteristic of LH with low T1 signal intensity and high T2 signal intensity. After radical surgical resection, hematoxylin-eosin (H & E) and immunohistochemical (IHC) staining of cystic LH endothelial cells labeled with monoclonal antibody D2-40 showed a dilated lymphangioma with no evidence of malignancy. After 7 months of follow-up, no tumor recurrence was seen and the effect was satisfactory.
CLINICAL DISCUSSION: A combination of previous trauma history, signs and symptoms, and imaging evaluation are necessary to provide clues to LH, but the final diagnosis is likely to be made by pathologic evaluation of the resected specimen. Although there are many treatment modalities, all also have different outcomes. The absence of complete resection resulting in a tumor remnant is the foremost cause of LH recurrence, so we believe that the preferred approach against LH remains complete surgical resection.
CONCLUSIONS: LH is benign and generally asymptomatic lesions with mild bio-behavior. As there are occasional confusing presentations, similar cystic lesions should still be considered with caution for the disease. Although MRI provides superior advantages for its diagnosis, the confirmation of diagnosis still requires histological examination. Radical lesion resection is a very safe and effective option for the treatment of LH.
CASE PRESENTATION: A 42-year-old woman presented to our hospital with a growing strip-like mass in the right forearm that had been detected 3 years earlier. Ultrasound examination showed a subcutaneous strip of low back vocal cords on the right forearm. Further magnetic resonance imaging (MRI) showed irregular strip-like dilated lymphatic vessels characteristic of LH with low T1 signal intensity and high T2 signal intensity. After radical surgical resection, hematoxylin-eosin (H & E) and immunohistochemical (IHC) staining of cystic LH endothelial cells labeled with monoclonal antibody D2-40 showed a dilated lymphangioma with no evidence of malignancy. After 7 months of follow-up, no tumor recurrence was seen and the effect was satisfactory.
CLINICAL DISCUSSION: A combination of previous trauma history, signs and symptoms, and imaging evaluation are necessary to provide clues to LH, but the final diagnosis is likely to be made by pathologic evaluation of the resected specimen. Although there are many treatment modalities, all also have different outcomes. The absence of complete resection resulting in a tumor remnant is the foremost cause of LH recurrence, so we believe that the preferred approach against LH remains complete surgical resection.
CONCLUSIONS: LH is benign and generally asymptomatic lesions with mild bio-behavior. As there are occasional confusing presentations, similar cystic lesions should still be considered with caution for the disease. Although MRI provides superior advantages for its diagnosis, the confirmation of diagnosis still requires histological examination. Radical lesion resection is a very safe and effective option for the treatment of LH.
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