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2015 ; 94
(16
): e748
Nephropedia Template TP
gab.com Text
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English Wikipedia
Pituitary involvement in granulomatosis with polyangiitis: report of 9 patients
and review of the literature
#MMPMID25906106
De Parisot A
; Puéchal X
; Langrand C
; Raverot G
; Gil H
; Perard L
; Le Guenno G
; Berthier S
; Tschirret O
; Eschard JP
; Vinzio S
; Guillevin L
; Sève P
Medicine (Baltimore)
2015[Apr]; 94
(16
): e748
PMID25906106
show ga
Pituitary dysfunction is a rare manifestation of granulomatosis with polyangiitis
(GPA) (Wegener). The main aim of this multicenter retrospective study was to
describe the characteristics and outcomes of pituitary manifestations in patients
with GPA included in the French Vasculitis Study Group database.Among the 819 GPA
patients included in the database, 9 (1.1%) had pituitary involvement. The median
age at diagnosis of GPA and pituitary involvement was 46 and 50.8 years,
respectively. Pituitary involvement was present at onset of GPA in 1 case and
occurred later in 8 patients after a median follow up of 58.5 months. When
pituitary dysfunction occurred, 8 patients had active disease at other sites
including ENT (n?=?6), eye (n?=?4), or central nervous system (n?=?3)
involvement. The most common hormonal dysfunctions were diabetes insipidus
(n?=?7) and hypogonadism (n?=?7). Magnetic resonance imaging was abnormal in 7
patients. The most common lesions were an enlargement of the pituitary gland,
thickening of the pituitary stalk, and loss of posterior hypersignal on
T1-weighed images. All patients were treated with corticosteroid therapy and 8
patients received immunosuppressive agents for the pituitary involvement,
including cyclophosphamide (n?=?3), rituximab (n?=?2), and methotrexate (n?=?3).
After a median follow-up of 9.2 years, GPA was in complete remission in 7
patients, but 8 patients were still under hormone replacement therapy. Among the
5 patients who had a subsequent MRI, 2 had complete resolution of pituitary
lesions.By combining our study and the literature review, the frequency of
hypogonadism and diabetes insipidus, among the patients with pituitary
dysfunction, can be estimated at 78% and 71% respectively. Despite a high rate of
systemic disease remission on maintenance therapy, 86% of the patients had
persistent pituitary dysfunction. The patients who recovered from pituitary
dysfunction had all been treated by cyclophosphamide.Pituitary disease in GPA
occurs mostly several months or years after diagnosis. There is no correlation
between hormonal, radiologic, and systemic outcome. Although immunosuppressive
drugs improve the systemic disease, hormonal deficiencies usually persist. It is
therefore important to shorten diagnostic delays and treat these patients early
in the course of disease before irreversible damage occur.
|Adult
[MESH]
|Aged
[MESH]
|Female
[MESH]
|Granulomatosis with Polyangiitis/*complications/drug therapy
[MESH]