introduction: extranodal natural killer (nk)/t-cell lymphoma (nktcl) nasal type is a rare but well-known disease with poor prognosis. nktcl is more prevalent in asia and comprises about 7-10% of all non-hodgkin lymphoma cases in this region. the characteristic clinical pattern of nktcl is the destruction of the midline structures of the mid-face. case report: the present study examines a case o...

nodes without involvement of peripheral lymph nodes, liver, spleen, bone marrow or peripheral blood [5]. Forty percent of all non Hodgkin's lymphomas (NHL) arise at extranodal sites [9], with the GI as the commonest extranodal site constituting 4-8% in the Western countries and up to 25% of cases in the Middle East [35]. The stomach is the most frequent site of involvement in Western countries,...

We share our experience with serial PET/CT imaging on a patient with extranodal Rosai-Dorfman disease (RDD) with hepatopancreatic involvement. RDD is a benign proliferative disorder of histiocytes mainly involving the lymph nodes. It typically presents with fever and painless cervical lymphadenopathy in young adults and less than half of RDS cases demonstrate extranodal involvement. RDD involve...

Actinomycosis is a rare anaerobic, gram-positive bacterial infection caused by Actinomyces. As an site for the disease, cervicofacial area common but nasal cavity and nasopharynx are rare. causes chronic purulent granulomatous characterized extensive infiltration, necrosis, bone destruction on CT. Extranodal natural killer/T cell (NK/T cell) lymphoma, type more in East Asia than elsewhere, comp...

Primary central nervous system lymphoma (PCNSL) is a rare form of extranodal non-Hodgkin's lymphoma with continuously increasing incidence in both immunosuppressed and immunocompetent individuals. PCNSL is a very aggressive tumor with a poor outcome, and its clinical outcome is much worse than for nodal lymphomas. Differently from lymphomas arising in lymph nodes or in other extranodal sites, t...

The current study presents a case of a 23-year-old male with CD30+ nasal-type extranodal natural killer/T-cell lymphoma (NKTL), with unusual clinical features mimicking phlegmonous myositis. The patient initially presented with swelling and tenderness of the left lower limb, particularly around the left ankle. One month later, pharyngalgia and fever developed and the patient was treated with an...

Cold agglutinin disease (CAD) is an autoimmune hemolytic anemia (AIHA) generally caused by IgM autoantibodies which exhibit maximal reactivity at 4°C. CAD can be idiopathic or secondary to some diseases and/or conditions. Only a minority of cases of secondary AIHA in non-Hodgkin's lymphoma (NHL) are associated with cold antibodies. Diffuse large B cell lymphoma (DLBCL) is the most common subtyp...

Three cases of primary non-Hodgkin's lymphoma of the larynx are described. Histologically, two tumours belonged to the category of low grade B-cell lymphomas of the small cell type (extranodal marginal zone B-cell lymphoma and lymphoplasmacytoid lymphoma), and the third was classified as a peripheral T-cell lymphoma of unspecified type. The clinical stage was IE in two cases, and IV in another ...

Extranodal marginal zone lymphoma of MALT, previously known as MALT lymphoma, is a low grade B-cell Non-Hodgkin's lymphoma (NHL). Its most frequent locations are the gastrointestinal tract and the lungs while that of the colon is rare. Involvement of multiple mucosal sites is not a frequent finding but it does occur. We describe a case of a 70-year-old man who presented with extranodal marginal...

The orbit is involved in 10% of all lymphomas. Paranasal sinuses and nose are other sites for extranodal lymphoma that are involved in upto 2.6 to 6.7% of lymphomas involving head and neck region and are second most common presentation of extranodal lymphoma. In nearly 22.5% of patients, sinonasal lymphoma and orbital lymphoma may coexist. The present report describes such patient with first pr...