: Our study underscores the lack of adequate data regarding the evaluation of treatment of orbital mucormycosis. No standard of care currently exists to guide physicians on when exenteration may benefit a mucormycosis patient. Further study is needed to determine which variables indicate the extent of disease and which variables or analytic scheme might predict the progression of orbital mucormycosis with or without exenteration.
Orbital leukemic tumors occur most commonly in the first decade of life, in association with acute myeloid leukemia. They appear as homogenous masses along the orbital walls. Although the overall survival rate for patients with leukemia has improved over the past 3 decades, the mortality of patients who develop orbital leukemic tumors remains high.
MMCR works by shortening the posterior lamella, which results in advancement of the levator palpebrae superioris muscle and plication of the levator aponeurosis. Plication of the levator aponeurosis likely contributes to the increased volumetric effect seen clinically after MMCR. Phenylephrine testing can help in fine-tuning the amount of resection, but given the mechanism of action of MMCR, adequate levator muscle function remains a critical factor in the success of the surgery. Moreover, MMCR preserves accessory lacrimal gland tissues.
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