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Similar Publications

Malakoplakia Involving the Maxilla: A Case Report and a Review of the Literature.

Head Neck Pathol

June 2024

Division of Dental and Oral Medicine, New York-Presbyterian/Queens, Flushing, New York, USA.

Article Synopsis
  • Malakoplakia is a rare inflammatory disorder mainly seen in immunocompromised patients, characterized by an inability of macrophages to effectively kill bacteria.
  • Although it usually occurs in the genitourinary and gastrointestinal regions, this report highlights a rare case where malakoplakia affected the maxilla and maxillary alveolar ridge mucosa, marking a unique instance of oral cavity involvement.
  • Diagnostic stains revealed specific patterns indicating malakoplakia without evidence of microbial infection, emphasizing the need for clinicians and pathologists to consider this condition when evaluating lesions in immunosuppressed patients.
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Article Synopsis
  • Ocular malakoplakia is a rare inflammatory disorder identified by the presence of Michaelis-Gutmann bodies, showcased in two unique cases involving the orbit and caruncle.
  • The first case features a 10-year-old girl with swelling near the caruncle, where surgical excision confirmed malakoplakia and offered symptom relief.
  • The second case is a 23-year-old woman with a swelling thought to be lymphoma, which after biopsy turned out to be malakoplakia, illustrating the need for accurate diagnosis in such uncommon conditions.
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A 56-year-old man presented with a 2-month history of a mass in the right epididymo-testicular region, which exhibited heterogeneous high avidity for 18F-FDG on PET/CT. Malignant tumor was highly suspected, leading to subsequent right orchiectomy and epididymectomy. Histopathological examination revealed the presence of characteristic Michaelis-Gutmann bodies within von Hansemann macrophages, confirming the diagnosis of malacoplakia.

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A case of canine intestinal malakoplakia.

J Comp Pathol

August 2023

Department of Animal Pathology, University of Zaragoza, 177 Miguel Servet Street, 50013 Zaragoza, Spain.

Malakoplakia is a rare chronic granulomatous disease usually affecting the urinary bladder and other locations. In humans, the gastrointestinal tract is the second most common location but there are no reports of intestinal malakoplakia in animals. A 10-month-old female French Bulldog was presented with chronic haemorrhagic diarrhoea and anorexia with normochromic-normocytic anaemia and hypoalbuminaemia.

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Background: Malakoplakia is a rare inflammatory disease of the urogenital tract. There have been no reports of malakoplakia expressing anaplastic lymphoma kinase (ALK) to date. Here, we present one case of malakoplakia with aberrant ALK expression by immunohistochemistry and discuss the clinical significance.

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