Relapse of Hodgkin's disease revealed by skin involvement.

We present a case of a relapse of HL revealed by a skin involvement. A biopsy of the skin lesion showed infiltration by a mixed cellularity and Reed-Sternberg cells. The immunoreactivity was positive for CD30 and CD15.

Hydropneumothorax Revealing a Pneumoblastoma in Children.

Pneumoblastoma is a rare primary childhood tumor. We report the observation of an infant aged 2 years and 8 months who presented with dry cough and dyspnea. The physical examination found mixed pleural effusion syndrome on the right.

Multisystem Langerhans Cell Histiocytosis in Adults Revealed by Skin Lesions.

A 37-year-old woman with no remarkable medical or family history presented with papules and vesicles on an erythematous background involving the neck, sacrum, and folds (postauricular, axillary, inguinal, and under the breasts) (Figure 1). During the previous year, she was treated with local and systemic antifungals without improvement. Her history included a secondary amenorrhea, polydipsia, and polyuria (6 L/d) that started 2 years prior.