Calcified Hyaline Degeneration Nodule in the Upper Lip Mucosa: A Rare Case Report.

Hyaline degeneration is a common degenerative disease after tissue or cell injury. It can occur in diseases such as renal fibrosis, atherosclerosis, and oral submucous fibrosis. Homogeneous eosinophilic deposits characterize it. However, the occurrence of hyaline degeneration is rarely accompanied by calcification. We present a rare case of a 33-year-old female patient diagnosed with a calcified nodule of the upper lip mucosa, which was confirmed as a benign entity without malignancy. This report is aimed at enhancing understanding of this condition and providing a reference for future diagnosis and treatment strategies.