Lymphoblastic lymphoma of the palate.

Lymphoblastic lymphomas are neoplasms of immature or precursor lymphoid cells with no or limited bone marrow involvement, whose clinical presentation varies according to the immunophenotype. While mediastinal involvement is predominant in T-lymphoblastic lymphomas, B-lymphoblastic lymphomas frequently involve nodal sites. Extranodal presentation of B-lymphoblastic lymphomas is extremely rare.

Fever with Rashes.

Fever with rashes is one of the commonest clinical problems a general practitioner or pediatrician has to face in day-to-day clinical practice. It can be a mild viral illness or a life-threatening illness like meningococcemia or Dengue hemorrhagic fever or it can be one with a lifelong consequence like Kawasaki disease. It is very important to arrive at a clinical diagnosis as early as possible with the minimum investigational facilities.

Hypereosinophilia: A rare presentation of acute lymphoblastic leukaemia.

Acute lymphoblastic leukaemia (ALL) presenting as peripheral blood hypereosinophilia is very rare and the incidence is <1%. The characteristic feature of patients with ALL and hypereosinophilia is the absence of blasts in peripheral blood, and this might lead to misdiagnosis of ALL. It is important for clinicians and pathologists to be aware of this uncommon initial presentation of ALL to avoid delay in diagnosis.

Isolated Intracranial Myeloid Sarcoma Occurring as Relapse in Acute Myeloid Leukemia.

Myeloid sarcoma (MS) or chloroma is a rare extramedullary tumor composed of extramedullary proliferation of blasts of granulocytic, monocytic, erythroid, or megakaryocytic lineage occurring at sites outside the bone marrow. MS occurs in 2%-8% of patients with acute myeloid leukemia (AML), sometimes it occurs as the presenting manifestation of relapse in a patient in remission. We describe the case of a young male with AML in remission for 6 years presenting with central nervous system symptoms.

Mixed phenotypic acute leukemia with leukemia cutis and neuroleukemiosis.

Leukemia cutis and neuroleukemiosis are two rare extramedullary manifestations of acute leukemia. We report a 32-year-old woman with multiple skin lesions and painful peripheral neuropathy. Bone marrow biopsy and skin biopsy confirmed the diagnosis of mixed phenotypic acute leukemia.