Primary rectal lymphoma (PRL) is the rarest primary rectal cancer. Clinical presentation is similar to rectal carcinoma. The role of surgery is still controversial and the benefit of chemotherapy and radiotherapy is not well established. We here report the case of female patient suffering from PRL completely disappeared with chemotherapy.

Primary rectal lymphoma is the rarest disorder of all primary gastrointestinal lymphomas. The association between Crohn's disease and primary rectal lymphoma is also very rare and there are a few case reports in the literature describing the association between these two diseases.

The distinction between tuberculosis and sarcoidosis presents sometimes a clinical challenge. Their sequential occurrence in the same patient is uncommon. We present the case of a 42-year-old female with a proven diagnosis of tuberculous lymphadenitis who has developed successively nasal tuberculosis and pulmonary and liver sarcoidosis.