Psammomatous melanotic schwannoma as a component of Carney complex
نویسندگان
چکیده
منابع مشابه
Psammomatous Melanotic Schwannoma: A Challenging Histological Diagnosis
Psammomatous melanotic schwannoma (PMS) is a rare pigmented tumor that can be part of the Carney complex. Here, we describe the case of a 35-year-old female patient presenting an isolated subcutaneous PMS. Histopathological analysis could not formally exclude the malignant nature of the tumor. The challenging histological diagnosis and consequently the management of the patient are described.
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Psammomatous melanotic schwannoma is a rare form of schwannoma that is distinct in terms of presentation, location, and nature compared to other types. This tumor is highly associated with Carney complex, but has also been seen in the neurofibromatosis syndromes. Although discovered over 80 years ago, official management guidelines have not been established. The following review comprises the c...
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Known germline gene abnormalities cause one-fifth of the pituitary adenomas in children and adolescents, but, in contrast with other pituitary tumor types, the genetic causes of corticotropinomas are largely unknown. In this study, we report a case of Cushing disease (CD) due to a loss-of-function mutation in PRKAR1A, providing evidence for association of this gene with a corticotropinoma. A 15...
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We present a case of an intramedullary melanotic schwannoma (IMS) of the thoracic spinal cord. To our knowledge, this is the seventh reported case of an IMS of the central nervous system. Schwannomas are benign nerve sheath tumors of neural crest origin composed entirely of well differentiated Schwann cells that typically occur in peripheral nerves. Both the intramedullary location and the mela...
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A dumb-bell mediastinal melanotic schwannoma is described, and the rarity of this type of tumour emphasised. The tumour was resected by simultaneous laminectomy and posterior thoracotomy. The patient is well four years after operation. The pathology of the tumour is described and the origin of melanotic cells is discussed.
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ژورنال
عنوان ژورنال: Indian Journal of Pathology and Microbiology
سال: 2015
ISSN: 0377-4929
DOI: 10.4103/0377-4929.162903