Lymphomas are a diverse group of neoplastic disorders arising primarily in lymph nodes. They have been majorly classified into Hodgkin and Non-Hodgkin lymphomas(NHL). NHL can be of B, T and Null cell categories having further subtypes based on their histological characteristics. Lymphomas can be nodal and extra nodal. The head and neck area are the second most common site of extra nodal lymphoma, with tonsils being the most common site of involvement; other sites include the nasopharynx and tongue base. B- Cell type being the most common type. Predominantly occurs in elderly. Presentations depends on the site involved. Various modalities like surgical treatment, chemotherapy (or) radiotherapy is available. Each stage has varied survival rates and prognosis and responses to the treat depending on the patient factors. In this paper,  we report two cases of patients with non-Hodgkin lymphoma of tonsil, where the preoperative clinical diagnosis and radiological diagnosis was inconclusive and final diagnosis was established based on histopathological examination.

We report a Japanese 5-year-old boy with primary ciliary dyskinesia (PCD) which was diagnosed owing to Clostridium difficile (CD) infection caused by prolonged antibiotic exposure. He had intractable otitis media with effusion (OME) and had abdominal pain and diarrhea for 4 months after starting antibiotics administration. His stool contained CD toxin. After vancomycin treatment, his symptoms improved and his stools did not contain CD toxin. His past medical history included frequent pneumonia. We, therefore, performed electron microscopy of the biopsy specimen from his nasal mucosa and genetic testing, and he was diagnosed with PCD. PCD is a rare inherited genetic disease causing ciliary dysfunction, which is very difficult to diagnose because some children without PCD also develop the same symptoms. Therefore, children who have intractable OME, rhinosinusitis, frequent pneumonia, or bronchitis and are taking antibiotics for long periods of time should be checked for underlying diseases, such as PCD.