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Granular cell tumor is a tumor that can develop on any skin or mucosal surface, but occurs on the tongue 40% of the time. It is also known as Abrikossoff's tumor , [ 1 ] granular cell myoblastoma , [ 1 ] granular cell nerve sheath tumor , [ 1 ] and granular cell schwannoma . [ 1 ]
Also known as congenital granular cell tumor or Neumann's tumor; historically referred to as granular cell myoblastoma. Multiple lesions occur in 10% of affected neonates. The tumor is typically pedunculated and varies in maximum size from 0.5 to 9 centimetres (0.20 to 3.54 in).
This rare epulis (also called granular cell tumor, congenital gingival granular cell tumor or Neumann's tumor) presents at birth, and is not acquired, [19] in contrast to most other epulides which tend to be reactive lesions to tissue irritation. Congenital epulides mainly affect females and every so often, the growth is so large that it can ...
Granulosa cell tumours are tumours that arise from granulosa cells.They are estrogen-secreting tumours and present as large, complex, ovarian masses. These tumours are part of the sex cord–gonadal stromal tumour or non-epithelial group of tumours.
From a macroscopic perspective, there is a well-defined, encapsulated or circumscribed mass, showing a soft, yellow tan to deep brown mass. The size ranges from 1 to 27 cm, although the mean is about 10 cm. [4] A high power hematoxylin and eosin stained photograph of a hibernoma. The tumors histologically resemble brown fat.
A giant cell (also known as a multinucleated giant cell, or multinucleate giant cell) is a mass formed by the union of several distinct cells (usually histiocytes), often forming a granuloma. [ 1 ] Although there is typically a focus on the pathological aspects of multinucleate giant cells (MGCs), they also play many important physiological roles.
9.1.2.2 Other low-grade B-cell lymphomas of the CNS 9.1.2.3 Anaplastic large cell lymphoma (ALK+/ALK−) 9.1.2.4 T-cell lymphomas and NK/T-cell lymphomas 9.2 Histiocytic tumors 9.2.1 Erdheim–Chester disease 9.2.2 Rosai–Dorfman disease 9.2.3 Juvenile xanthogranuloma 9.2.4 Langerhans cell histiocytosis 9.2.5 Histiocytic sarcoma
Large granular lymphocytic (LGL) leukemia is a chronic lymphoproliferative disorder that exhibits an unexplained, chronic (> 6 months) elevation in large granular lymphocytes (LGLs) in the peripheral blood. [1] It is divided in two main categories: T-cell LGL leukemia (T-LGLL) and natural-killer (NK)-cell LGL leukemia (NK-LGLL).