Hemophagocytic Lymphohistiocytosis Complicating Myelodysplasia

We describe a 62-year-old patient with a 4-year history of myelodysplasia who later developed striking features that included massive splenomegaly, rapidly evolving visual loss and a sensorimotor polyneuropathy. This led us to consider the diagnosis of haemophagocytic lymphohistiocytosis (HLH). Upon further investigation, we found that he fulfilled the necessary diagnostic criteria for HLH, including the presence of haemophagocytosis of erythroid precursors on bone marrow smear.

Osteomyelitis of the maxilla in a patient with Malignant Infantile Osteopetrosis

Osteopetrosis is characterized by a considerable increase in bone density resulting in defective remodeling, caused by failure in the normal function of osteoclasts, and varies in severity. It is usually subdivided into three types: benign autosomal dominant osteopetrosis; intermediate autosomal recessive osteopetrosis; and malignant autosomal recessive infantile osteopetrosis, considered the most serious type. The authors describe a case of chronic osteomyelitis in the maxilla of a 6-year-old patient with Malignant Infantile Osteopetrosis. The treatment plan included pre-maxilla sequestrectomy and extraction of erupted upper teeth. No surgical procedure was shown to be the best to prevent the progression of oral infection. Taking into account the patient's general condition, if the patient develops severe symptomatic and refractory osteomyelitis surgery should be considered. The patient and his family are aware of the risks and benefits of surgery and its possible complications.

Factores preditivos de linfoma no síndrome de Sjögren : a propósito de um caso clínico

Trabalho Final do Curso de Mestrado Integrado em Medicina, Faculdade de Medicina, Universidade de Lisboa, 2014