Background Myeloid sarcoma is a solid tumor that consists of immature myeloid cells occurring at an extramedullary site. It can present before, concurrent with, or after the diagnosis of acute myeloid leukemia or other myeloproliferative diseases, and a proportion of patients never develop bone marrow infiltration. Only a few isolated cases of pediatric orbital myeloid sarcoma have been reported, and they are often associated with a high misdiagnosis rate. Case report We report a rare case of pediatric orbital myeloid sarcoma associated with blunt trauma in a 3-year-old Caucasian male patient, which was clinically and radiologically misdiagnosed for orbital subperiostal hematoma. The patient underwent a surgical intervention to drain the hematoma when an orbital mass was found. The microscopic, immunologic, and genetic features of the tumor and the myelogram were in favor of LAM2, and the patient was started with chemotherapy with a favorable evolution within 18 months follow-up. Conclusion Orbital myeloid sarcoma usually exhibits clinical and radiological features that can be easily misleading, especially if it happens de novo or as the first manifestation of acute myeloid leukemia. Only a few isolated cases have reported and proposed trauma as a trigger event of the onset of this type of tumor proliferation, but further investigations and evidence are needed to support this hypothesis.

Introduction Osteopetrosis is a rare genetic bone disease caused by a functional abnormality of the osteoclasts. Until now there is no codified management for the complications of this pathology and few cases cited in the literature. Presentation of case a 19-year-old adult followed in our maxillofacial surgery department in the IBN ROCHD University Hospital for chronic osteomyelitis complicating mandibular osteopetrosis with skin fistulas. Patient operated several times. The persistence of osteomyelitis prevents the installation of a dental prosthesis and the appearance of new fistulas with continuous flow of pus alters the patient's quality of life. Discussion Osteopetrosis is a group of rare genetic diseases characterized by osteoclastic insufficiency, poor bone remodeling and increased bone density. the benign form of osteopetrosis called Albers-Schönberg disease. It is a genetically inherited autosomal dominant disease. The large number of surgical interventions and the use of antibiotics for long periods of time (risk of development of resistance) significantly reduces the quality of life of patients. We must seek other measures to improve the prognosis and codify management. Conclusion In osteopetrosis, the maxillofacial surgeons should be aware about the early diagnosis and the appropriate management of the signs and prevent complications.

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Introduction Seborrheic keratoses are benign tumours that occur electively on the head, neck and trunk. It can be confused on its clinical appearance with other skin tumours and it is the histological examination that establishes the diagnosis. We report a case of seborrheic keratosis simulating squamous cell carcinoma. Observation A 62-year-old woman consulted for a budding right jugal lesion that had been evolving for 6 months. Clinical examination found a right jugal budding lesion with crusts on its surface, pedunculated, surrounded by a hyperpigmented halo at its base, firm to palpation, painless and non bleeding on contact. An initial biopsy of the lesion for histological examination confirmed the diagnosis, followed by complete surgical excision. Discussion Seborrheic keratoses are benign tumours that occur mainly in subjects over 50 years of age. They occur electively on the trunk, head and neck. Its clinical aspect is generally typical but sometimes misleading, as found in our case; only histology allows to make the diagnosis of certainty.

Introduction The constant increase in the incidence of tuberculosis, as long as the emerging global resistance to antituberculous drugs warrants an increased awareness of the possibility of Mycobacterium Tuberculosis in persistent lesions of the oral cavity. Lingual tuberculosis is a rarely described entity of extra pulmonary tuberculosis. It usually presents as a non-healing chronic mucosal lesion that may mimic malignant lingual neoplasms. Case report In the present paper, we report a rare presentation of lingual tuberculosis in a 36 years old woman, which was clinically suspected as an extensive malignant fissure of the tongue. The diagnosis was confirmed by tongue biopsy and the patient responded well to the antitubercular chemotherapy. Discussion lingual tuberculosis is a rare clinical and pathological entity of extrapulmonary tuberculosis. Only a few cases have been reported around the world, and in each one of them, a unique clinical form has been described. This variability of clinical presentations can allude to several pathological conditions including malignancy. Conclusion This case report is a documentation of a unique clinical and radiological presentation of lingual tuberculosis; it also highlights the importance of considering tuberculosis in the differential diagnosis of chronic tongue lesions.