Intravascular large B-cell lymphoma arising in the pituitary gland: A case report
Year: 2024
Type: article
Study design: Case Report
Abstract: RATIONALE: Primary pituitary lymphoma is defined as a lymphoma that develops only in the pituitary gland without involvement of other areas. PATIENT CONCERNS: We present the case of a 61-year-old female patient who underwent an endonasal transsphenoidal approach for the preoperative diagnosis of a pituitary macroadenoma based on radiological findings. DIAGNOSES: Microscopically, the capillaries were distended by tumor cells. The high-magnification view showed large cells with vesicular nuclei and single or multiple prominent nucleoli, with mitotic figures often observed within the intravascular space. INTERVENTIONS: Immunohistochemical staining showed strong positivity for CD45 and pan-B cell markers such as CD19 and CD20. The postoperative diagnosis was intravascular large B-cell lymphoma of the pituitary gland. OUTCOMES: Next-generation sequencing revealed alterations in 12 genes: ARID5B, BCL2, CD79B, ETV6, HLA-B, LRRC7, MYD88, PIM1, POT1, PTPN11, RASA1, and SRSF2. LESSONS: To our knowledge, this is the first case report of pituitary intravascular large B-cell lymphoma.
Source: Medicine
Authors: Kyu Yun Jang, Ae Ri Ahn
Language: English
Subfield: Neurology
Field: Medicine
Domain: Health Sciences
Open Access status: gold
Estimated APC paid: $1,950
Award: G4145060381
OpenAlex ID: W4405429152