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We present a new case of a primary carcinoid tumour of the skin. The mitotic index (4/10 HPF) warrants classification of this case as atypical. The patient was a 58-year-old woman with a 1-year history of a mass on the scalp. Literature review showed this to be only the seventh case of primary carcinoid tumour of the skin. Importantly, the evolution has been favourable in all seven tumours, with a mean follow-up of 2.5 years for the previous six cases. Although the number of cases is too small to draw definitive conclusions, information to date suggests that this type of tumour can be expected to have a benign behaviour, despite the presence in some cases of criteria suggestive of uncertainty, such as the presence of mitosis.

Septic arthritis of the hip is an acute infection, predominantly of bacterial etiology. Although Staphylococcus aureus is the primary pathogen in any age group, other potentially pathogenic microorganisms exist. We describe the case of an 18-month patient with septic arthritis of the hip with a rare causal agent (Haemophilus influenzae type F) and a good outcome. This case highlights the importance of considering other less common etiologic agents for septic arthritis in children, performing arthrocentesis with synovial fluid culture before starting antibiotic treatment, whenever this is possible. In addition, as in this case, it should be noted that a positive synovial fluid culture for Haemophilus influenzae forces typification of the bacteria in order to rule out or confirm a vaccine failure.

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