A CASE REPORT OF PSEUDOLYMPHOMA OF THE KIDNEY AND ORBIT
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Abstract:
Pseudolymphoma is reactive extranodal lymphocytosis, and it's lymphocytes are so minimally atypical that it is basically benign. The patient was a 68-year-old female with pain in the left back and lower abdomen. Plain CT (computerized tomogram) of the kidney revealed a mass in the left kidney. It had a smooth surface and higher density than parenchyma. Similarly a left orbital mass was revealed by CT. We could not deny the mass to be a malignant tumor, so we took specimens from these lesions by an open biopsy. Histological examination of these specimens showed pseudolymphoma. Pseudolymphoma of the left kidney was reduced in its size by treatment with prednisolone. The patient is continuously followed up to date.Keywords:
Pseudolymphoma
Orbit (dynamics)
A man developed nodules within the red areas of his tattoo. Biopsy revealed a lympho‐histiocytic infiltrate consistent with a diagnosis of pseudolymphoma. This is only the second report in the literature of pseudolymphoma arising in a tattoo. Other causes of pseudolymphoma are reviewed.
Pseudolymphoma
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The lymphangiography findings accompanying mesantoin-induced pseudolymphoma are described, and a case presented. The initial findings were indistinguishable from those observed in true lymphoma, but follow-up studies showed gradual restoration of lymph node size and architecture to normal. Lymphangiography should be of value in distinguishing between pseudolymphoma, pseudopseudolymphoma, and malignant lymphoma.
Pseudolymphoma
Malignant lymphoma
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Pseudolymphoma of the mammary gland is a reactive lesion with a favorable prognosis, while malignant lymphoma is tumorous. We experienced a rare case of pseudolymphoma which appeared in the right breast of a 47-year-old woman and had a malignant course. Pseudolymphoma originating in the mammary gland is thought to be similar to pseudolymphoma of the lung and orbit and reactive lymphoid hyperplasia of the stomach, and to have a favorable prognosis. However, only 10 cases have been reported to date. It is important for histopathological differentiation from malignant lymphoma to examine histological findings and to demonstrate a polyclonal feature by staining cell markers by the enzyme antibody method. In our patient, the lesion was metastasized to the piriform muscle in spite of the fact that the patient was diagnosed as having pseudolymphoma on the basis of histological findings and the enzyme antibody method. The patient is an important case because of the presence of a borderline lesion borderline between pseudolymphoma originating in the mammary gland and malignant lymphoma.
Pseudolymphoma
Lymphoid hyperplasia
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Lymphomatoid contact dermatitis is a form of pseudolymphoma that was first described in 1976 by Orbaneja et al. Since that initial report, a number of allergens have been reported to cause this type of pseudolymphoma. Most cases involve hyperplasia of T cells. We describe a case of cutaneous B-cell pseudolymphoma due to paraphenylenediamine. This report underscores the importance of thorough history and observation when assessing patients with suspected lymphoproliferative processes.
Pseudolymphoma
Lymphomatoid papulosis
Lymphoproliferative Disorders
Cutaneous lymphoma
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Pseudolymphomas are a group of lymphoproliferative disorders which are difficult to classify and diagnose. They can affect several anatomical sites and, among these, a mammary localisation is considered rather rare. Pseudolymphomas of the breast carry an excellent prognosis, and no case of malignant degeneration has ever been described. On the contrary, cutaneous pseudolymphomas, which are considered very low-grade lymphomas by some authors, are actually able to progress to overt cutaneous lymphomas in a minority of cases. The authors present three cases of periareolar pseudolymphoma of the breast. The first two were characterised by the presence of an elevated serum antibody titer to Borrelia, and were therefore diagnosed as lymphocytoma cutis, a disorder affecting 0.6-1.3% of patients with Lyme's disease. Both cases had a benign clinical course, as confirmed by the negative follow-up after more than three years. On the contrary, the third pseudolymphoma, classifiable as an idiopathic form, relapsed locally after ten years, thus testifying to the benign nature of the lesion, but also demonstrating that the lymphoproliferative process may still be active after a long period of time. The last case emphasizes the need for long-term follow-up of these patients.
Pseudolymphoma
Lymphoproliferative Disorders
Cutaneous lymphoma
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Cutaneous lymphoma
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Pseudolymphoma
Immunophenotyping
Malignant lymphoma
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The pseudolymphoma of the stomach can be diagnosed neither by clinical, nor by X-ray or endoscopic examination. In most cases surgery is done because gastric carcinoma is suspected, and the diagnosis of lymphoma is established upon microscopic examination of the resected specimen. In many cases complications such as bleeding, ulcers or erosions give rise to further diagnostic procedures. Prognosis is good. Surgery is the therapy of choice. 4 cases are reported and histological criteria of pseudolymphoma especially as compared to lymphosarcoma are discussed. Two different approaches are delineated in regard to ulcerative pseudolymphoma and lymphatic hyperplasia respectively.
Pseudolymphoma
Lymphoid hyperplasia
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Pseudolymphoma
Cutaneous lymphoma
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Pseudolymphoma
Immunophenotyping
Malignant lymphoma
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