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    Histopathology of head and neck lymphomas in Ibadan
    (Medknow, 2020) Ajani, M. A.; Nwanji, I. D.; Olaniran, F. O.; Ogun, G. O.; Okolo, C. A.; Akinmoladun, V. I.
    Background: Lymphomas are a heterogeneous group of tumors of lymphoid tissue in which there is a malignant proliferation of cells of the lymphatic system. They are the most frequent nonepithelial malignancy in the head and neck region. Objectives: The aim of this study was to evaluate the histological pattern of the disease in the head and neck region and trends in presentation seen in our center Materials and Methods: This was a retrospective study of cases of head and neck lymphoma (HNL) seen in the Pathology Department of the University College Hospital Ibadan, Nigeria over a period of 37 years (1981–2017). Information extracted from the records included the sociodemographics of the patients, tumor location, and histological type among others. Data were analyzed and results were presented as frequencies and percentages. Results: There were a total of 373 cases of histologically and/or cytologically diagnosed HNL seen during the study period (an average of 10 cases per year). The mean age of patients was 33.5±21.9 years with male:female ratio of 1.6:1. Most HNL were non-Hodgkin’s lymphomas (NHL), accounting for 91% of cases. Nodal disease was seen in 39% of cases. The bone (prominently, the jaws) predominated (25%) in extranodal lesions. Burkitt’s lymphoma was the most common specific subtype of NHL, occurring in 25.5% of cases. Conclusion: There has been an apparent upward trend in the prevalence of HNL over the past four decades, although other parameters such as age and sex predilection appear unaffected. Factors responsible for this trend need to be interrogated and ascertained.
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    Inflammatory pseudotumor: a 20‑Year single institutional experience
    (Wolters Kluwer - Medknow, 2020) Ajani, M. A.; Fatunla, E. O.; Onakpoma, F. A.; Salami, A. A.
    Background: Inflammatory pseudotumor (IPT) is a relatively rare benign disease. The aim of the study was to demonstrate the demographic distribution, clinical presentation, and histomorphological characteristics of IPT while highlighting its associated diagnostic challenges. Materials and Methods: A retrospective cross sectional review of all the IPT diagnosed in our institution between January 1999 and December 2018 was conducted. The samples were received from within and outside the hospital facility. The demographic data, clinical history, and histologic reports were reviewed. Results: A total of 25 cases of histologically confirmed IPT were seen. Patients’ age ranges from 7 to 74 years with a mean age of 38.96 years and standard deviation ± 17.94 years. There was a bimodal peak occurrence in the third and fifth decades. Most of the patients were adults (23, 92%), whereas only 2 (8%) were children. There was a female preponderance with a male to female ratio of 1:2.6. The head and neck had the highest number of cases (44%), followed by the gastrointestinal tract (GIT) (40%). Eight (73%) of head and neck cases occurred in the orbit. The presenting complaints depended on the site of the lesion with pain and swelling being the commonest symptoms irrespective of the site of the lesions. Two cases of bilateral IPT were observed. Immunohistochemistry was used in a certain condition of diagnostic dilemma. Conclusion: This study showed a female preponderance of IPT with the head and neck and GIT being the most common location. It is important to rule out other differentials in the diagnosis of IPT.