Introduction Morphea, or localized scleroderma, is an inflammatory disease that leads to sclerosis of the skin and underlying tissues due to excessive collagen deposition. Its etiology remains elusive. Morphea also affects oral and perioral tissues, the most common clinical manifestations being facial skin and tongue rigidity. Below, we present a case of morphea with oral manifestations. Case presentation A 17-year-old patient was referred to our department of oral surgery by her dermatologist for possible oral morphea involvement. She presented pigmented skin lesions involving the right labial-chin region. On palpation, the skin of her perioral was sclerotic. the panoramic radiograph showed a shortening of the roots of the 46/47 with a developmental delay of the 48 compared to the 38. A bone biopsy was performed between 46/47 and distal to 48. histological examination showed bone tissue with fibrous and collagenous reorganization in favor of scleroderma. Conclusion The management of plaque morphea is multidisciplinary. The role of the dentist is very important to avoid any oral complications.

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.

Mucoceles are a benign lesions characterized by an extravasation or retention of mucous in submucosal tissue from minor salivary glands caused most probably by a trauma or habit of lip biting. They usually present as an asymptomatic small superficial swelling, which are knew to occur most commonly on the lower lip, followed by the floor of mouth and in other sites. However, uncommon variants of oral mucoceles sometimes occur. Such lesions may be difficult to diagnose due to their unusual localization and atypical clinical presentation. This paper highlights a rare case of mucocele localized in hard palate in a 63 years old male patient. The lesion was depressed, with a bluish appearance, and it measured 7 mm × 5 mm x 2 mm. Diagnosis is based on clinical characteristics, and confirmed with histological features.