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Small bowel lymphoma accounts for 10%-30% of gastro-intestinal tumors. Clinical presentation is not specific. CT scans helps the diagnosis showing some characteristic appearances such as wall thickening of the loops, enlarged lymph nodes and infiltration of mesenteric fat. Pseudoaneurysmal intestinal dilatation is uncommon and may cause bowel obstruction which is a diagnostic and therapeutic emergency. We report the case of a 73-year-old man, who presented for occlusive syndrome revealing hail lymphoma. Pseudoaneurysmal intestinal dilatation is an uncommon presentation of lymphoma that should evoke the diagnosis especially when associated to wall thickening of the loops and lymphadenopathy.

Muscle metastases of bronchopulmonary cancer are rare, notably when they are revealing. They can affect all muscles of the body with a predominance of psoas, diaphragmatic and para-vertebral muscles. We report a case of psoas muscle metastasis revealing bronchopulmonary cancer in a 40-year-old patient with a long history of smoking (30 packs of cigarettes/year) presenting a chronic left low back pain with asthenia and weight loss (15 kg/year). The clinical examination was unremarkable. An abdominal computed tomography scan showing a retroperitoneal mass at the expense of the left psoas muscle, lysing the L2 vertebral and left pedicle with intraspinal extension. A complement by cervico-thoracic computed tomography scan showed a lung mass with hilar and mediastinal lymphadenopathy. A scan-guided biopsy puncture of the psoas muscle mass identified its metastatic origin. The clinical picture is often deceptive leading to diagnostic and therapeutic delay, hence the interest of the imagery as well as histological confirmation is recommended.

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Metastatic tumors of the nasal cavity and paranasal sinuses are much less common than primary cancer in this location. The clinical symptomatology is not specific. We report a case of frontal metastasis of a 49-year-old patient treated for a rectal adenocarcinoma without other secondary localizations. The treatment is based on radiotherapy or chemotherapy. Hence the value of recognizing sinus metastases and differentiating them from infection affection.

The labyrinthine fistula is a severe complication of chronic otitis media withcholesteatoma. It is the consequence of a progressive erosion of the endochondral bonecovering and closing the labyrinth by the cholesteatoma matrix. As thelabyrinth is connected to the cochlea, a labyrinthine fistula can lead to sensorineural hearingloss in addition to vertigo. Computed tomography imaging of the petrous bones issystematic, specifying the seat and extension of the cholesteatoma, and evaluating the extentof bone lysis.We report the case of a young female patient who presents a chronic otitis media withcholesteatoma complicated by a labyrinthinefistula and a left temporal brain abscess.

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