Single cases of lymphoma of the ethmoid are rare reports from several countries. Therefore, the present case is from the Ibo ethnic group, which is domiciled in the South Eastern Region of Nigeria. Unlike world patterns, the patient was a child.
Keywords: Ethmoid, Lymphoma, Rarity, Developing community
The ethmoid is a rare site of occurrence of lymphoma. In alphabetical order, individual reports were published in Brazil , China , Croatia , Italy , Japan  and USA . Therefore, the case from among the Ibo ethnic group , which is domiciled in the South Eastern Region of Nigeria, is deemed to be worthy of documentation.
OC, a 12 year old boy, attended the University of Nigeria Teaching Hospital, Enugu, where he was seen by Dr. Bazil Ezeanolue. The complaint was of left ethmoidal mass protruding for 3 years. The biopsy consisted of several irregular, flat, pale masses with softish portions. On microscopy by the corresponding author, normal tissue was not seen apart from the mucosa beneath which there were lymphoid tumor cells in malignant disorder. Focal calcification was also noted. Therefore, malignant lymphoma was diagnosed.
The microscopical appearances were as in previously reported cases in respect of bone , palate  and breast . There was even a forensic example of it in a teenager .
Curiously, our patient was a child. In contrast, all the above cited cases ranged in age from 42 years in China  to 79 years in Japan .
Our patient had a localized lesion. In the case from South Korea , it was stated that the ethmoid sinus being involved with the epiglottis is rare. In the Japanese case , the tumor was invasive into the eye and nose.
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