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BackgroundPrimary thyroid lymphoma is an uncommon pathological entity that accounts for only 1 to 5 % of all thyroid malignancies. Primary Burkitt lymphoma of the thyroid gland is very rare. This article presents the first Moroccan case of a primary BL of the thyroid to be reported in the literature to date.Case presentationWe describe here a case of a 70-year-old male who developed a rapidly enlarging thyroid gland with progressive symptoms of compression. Core biopsy confirmed the diagnosis of Burkitt lymphoma. The patient died of septic shock, 2 weeks after the first cycle of appropriate therapeutic chemotherapy.ConclusionsThis presentation emphasizes the importance of considering lymphoma when dealing with a thyroid mass, as its management is different from that of other thyroid pathologies, and affords an opportunity to review a very rare type of primary thyroid lymphoma.

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BackgroundHemophagocytic lymphohistiocytosis in adults is often secundary to an infection or a neoplasm. In this last case, T cell lymphomas are the most frequent causes. Hemophagocytic lymphohistiocytosis secundary to a B cell lymphoma has been rarely reported.Case presentationWe describe a case of a hemophagocytic lymphohistiocytosis complicating a T-cell rich B-cell lymphoma treated with conventionnal chemotherapy leading to a complete remission.ConclusionPrompt etiologic diagnosis and treatment of hemophagocytic lymphohistiocytosis leads to satisfactory outcome.

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Treatment by All-Trans Retinoic Acid (ATRA) combined with an Anthracycline Chemotherapy has been shown to improve disease-free survival in patients with Acute Promyelocytic Leukemia (APL). Although ATRA is generally well tolerated, occurrence of Retinoic Acid Syndrome (RAS) during the induction chemotherapy in some patients is recognized as a distinct complication and a potential life-threatening side effect.Isolated myocarditis as a result of RAS related to ATRA administration is uncommon and has been rarely reported in the literature.We report a very rare case of ATRA-induced perimyocarditis accompanied by hemodynamic compromise. There was complete resolution of the signs and symptoms of peri-myocarditis when ATRA was temporary suspended. Finally, ATRA was safely resumed.