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  1. Chronic histiocytic intervillositis in consecutive miscarriages: A potential pitfall in routine examination of conceptus
    Mohd Fuad SK, Adznan N, Hayati AR, Virasamy V, Rahim NS
    Malays J Pathol, 2020 Dec;42(3):439-444.
    PMID: 33361726
    INTRODUCTION: Chronic histiocytic intervillositis (CHI) is a rare placental lesion strongly associated with recurrent miscarriages and fetal losses. It requires histopathological diagnosis and can only be made after delivery of the products of conception (POC). We describe a case of CHI in a 41-yearold lady with a 16-year history of thirteen recurrent consecutive first trimester miscarriages.

    CASE REPORT: The patient is a 41-year-old lady who suffered first trimester miscarriages in all her thirteen pregnancies. The relevant clinical investigations revealed neither significant nor helpful findings in determining the cause of recurrent miscarriages. Histological findings in each except one of the submitted conceptual tissue showed similar features of histiocytic aggregates primarily within the intervillous spaces, a characteristic description of CHI. One of the samples showed degenerative changes.

    DISCUSSION: Practicing pathologists are not familiar with the histological features of CHI and this may be a potential pitfall in routine examination of POCs. Recognising this entity allows for accurate diagnosis and hence better management. The aetiology remains unclear, although an immunopathological basis are being explored.

    Matched MeSH terms: Histiocytosis/pathology
  2. Multiple system Erdheim-Chester disease with massive hypothalamic-sellar involvement and hypopituitarism
    Oweity T, Scheithauer BW, Ching HS, Lei C, Wong KP
    J. Neurosurg., 2002 Feb;96(2):344-51.
    PMID: 11838810
    Erdheim-Chester disease (ECD) is a rare multiple system histiocytosis that is characterized pathologically by xanthogranulomatous infiltrates and radiologically by symmetrical sclerosis of long bones. The diagnosis is often confirmed by biopsy of bone or of orbital or retroperitoneal soft tissue. Intracranial involvement is rare. The authors report a case of ECD in which the diagnosis was made after biopsy of a hypothalamic mass. The mass had been discovered during a workup for panhypopituitarism in a 55-year-old man with urological and bone disease. Aside from diabetes insipidus, other features of pituitary insufficiency have seldom been reported and no patients have presented with a hypothalamic tumor. The endocrinological and neurological aspects of ECD are discussed, as is its differential diagnosis. Reported cases of the disorder associated with hypopituitarism or found during biopsy of central nervous system structures are also reviewed.
    Matched MeSH terms: Histiocytosis/pathology*
  3. H syndrome - the first report in Malaysia
    Low DE, Tang MM, Surana U, Lee JY, Pramano ZAD, Leong KF
    Int J Dermatol, 2019 Oct;58(10):e190-e193.
    PMID: 31192449 DOI: 10.1111/ijd.14518
    Matched MeSH terms: Histiocytosis/pathology
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