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Introduction Necrotizing sialometaplasia (NSM) is a benign, self-limiting, inflammatory disease of salivary glands, mainly involving the minor salivary glands in the palate. This lesion can mimic a malignant neoplasm, both clinically and histopathologically, manifesting as a submucosal swelling or as an ulcer of the palate. We illustrate our work with a case of necrotizing sialometaplasia misdiagnosed as carcinoma. Case presentation A 26 years old woman presented to dental treatment and consultation center of Rabat, for a rehabilitation of left palatal bone defect with an obturator prothesis. A postsurgical erythematous area was noted at the left palate during intraoral examination. After medical file study, we founded that she had a necrotizing sialometaplasia treated by maxillectomy of the left maxillary bone, and we realized that a diagnostic error was made leading to an aggressive treatment. Clinical discussion Necrotizing sialometaplasia can be misdiagnosed clinically and microscopically as a malignant neoplasm, resulting in inappropriate and aggressive treatment like the case presented. Conclusion The diagnosis of NSM is challenging, the role of histopathology and immunohistochemistry is of paramount importance.

Introduction and importance Coronectomy represents a common procedure performed in oral surgery, mostly involving the lower wisdom teeth when the extraction presents a risk of injury to the inferior alveolar nerve (NAI). The surgical approach can be described as a coronal separation of the tooth and leaving the roots intact in the socket. The result is impressive with the disappearance of the symptomatology at first and especially the root migration, which occurs most frequently in the first 6 months. Cases series presentation We present a series of clinical cases of coronectomy involving the lower wisdom tooth which was performed by respecting the preoperative, perioperative, and postoperative measures and whose indications were established correctly. Discussion and conclusion Besides the previously mentioned indication, this procedure can be associated with other clinical situations such as dentigerous cysts. However, there are several circumstances in which coronectomy is contraindicated. According to our study, we can conclude that coronectomy of mandibular wisdom teeth represents a reassuring alternative to the preservation of NAI. Complications may occur but follow-up remains a key point in visualizing the progression of the roots away from the mandibular canal.

Erysipelas is a superficial cutaneous process that is usually restricted to the dermis, but with prominent lymphatic involvement commonly caused by streptococci. We present a patient who was admitted for swelling and erythema of his left cheek. We diagnosed facial erysipelas, the curative treatment was based on the prescription of effective antibiotic therapy against streptococci and bacteria producing β-lactamase (staphylococci). Removal of the remaining teeth was scheduled during medical treatment. At a 4-month follow-up after dental removal, there has been no recurrence of erysipelas.Through a clinical case of facial erysipelas, this work allows illustrating the specificities of this pathology.