Calcifying Odontogenic Cyst Presenting Odontogenic Keratocyst-Like Areas: A Rare Case Report.

An 81-year-old male patient presented with a well-demarcated, unilocular radiolucent lesion in the right mandibular body, identified during a routine radiographic examination. Based on the clinical hypothesis of a residual cyst, enucleation with curettage was performed, and the specimen was submitted for histopathological analysis. Microscopically, the cystic lesion was predominantly lined by ameloblastomatous epithelium with numerous ghost cells and dentinoid. Additionally, other cystic cavities lined by stratified squamous epithelium with corrugated parakeratin were observed in the fibrous capsule. Based on these features, a final diagnosis of a calcifying odontogenic cyst with odontogenic keratocyst-like areas was established. No recurrence was observed over a 9-year follow-up period. The association of a calcifying odontogenic cyst with odontogenic keratocyst or odontogenic keratocyst-like areas is very rare. To date, this is the second case report in the literature presenting these findings.

Case Report: Scabies Invading Gingival Tissue.

Non-plaque-induced lesions may occur on the gingiva as medical disorders or manifestations of systemic conditions. Scabies is a parasitic infection caused by Sarcoptes scabiei. Here, we present the first case of oral scabies reported in the literature located on the gingiva in a 43-year-old woman. She was admitted to the hospital complaining of an ulcerative lesion on the gingiva with unknown duration, with a suggestive diagnosis of pemphigoid. A diagnosis of scabies infestation was made based on the visualization of eggs and larvae/nymph forms. The treatment consisted of 100 mg of ivermectin (three times per day for 15 days), supplemental oral hygiene with chlorhexidine, and extensive cleaning. The follow-up was made 30 days after treatment with ivermectin. The patient did not report side effects, with skin and oral lesions completely healed. Based on this, we need to perform a thoughtful ectoscopy examination and be alert to signs that indicate unusual causes to diagnose correctly and choose the appropriate treatment.