Incidental pituitary lesions in 1,000 unselected autopsy specimens.

Teramoto, Akira; Hirakawa, Kimiyoshi; Sanno, Naoko; Osamura, Yoshiyuki

doi:10.1148/radiology.193.1.8090885

Cited by 337 publications

(153 citation statements)

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“…19,50 They are often discovered incidentally and have been identified in up to 22% of the population according to routine examination of autopsy specimens. 100 Despite their relatively high prevalence, they result in clinical symptoms in a minority of patients, comprising only 5-9% of all surgically resected sellar lesions. 2,56,108,115,116 Typical symptoms associated with RCCs include headache, endocrine dysfunction, and visual loss.…”

Section: Rathke Cleft Cysts: Typical Featuresmentioning

confidence: 99%

Craniopharyngioma and other cystic epithelial lesions of the sellar region: a review of clinical, imaging, and histopathological relationships

Zada¹,

Lin²,

Ojerholm³

et al. 2010

FOC

227

182

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Object Cystic epithelial masses of the sellar and parasellar region may be difficult to differentiate on a clinical, imaging, or even histopathological basis. The authors review the developmental relationships and differentiating features of various epithelial lesions of the sellar region. Methods The authors performed a review of the literature to identify previous studies describing the etiological relationships and differentiating features of various cystic sellar lesions, including craniopharyngioma (CP), Rathke cleft cyst, xanthogranuloma, and dermoid and epidermoid cysts. Results There is significant evidence in the literature to support a common ectodermal origin of selected sellar and suprasellar cystic lesions, which may account for the overlap of features and transitional states observed in some cases. Research obtained from animal studies and reports of transitional cystic epithelial masses or lesions crossing over from typical to more aggressive pathological subtypes have collectively provided a solid foundation for this theory. Histological features that signify transitional entities beyond simple benign Rathke cleft cysts include squamous metaplasia, stratified squamous epithelium, and ciliated or mucinous goblet cells in squamous-papillary CPs. Several studies have identified key clinical, imaging, and histopathological features that can be used in the differentiation of these lesions. Conclusions The pattern of embryological formation of the hypothalamic-pituitary axis plays a major role in its propensity for developing cystic epithelial lesions. Subsequent inflammatory, metaplastic, and neoplastic processes may promote further progression along the pathological continuum, ranging from benign epithelial cysts to aggressive neoplastic cystic CPs. Selected clinical, imaging, and histopathological features can be used collectively to help differentiate these lesions and assign a formal diagnosis, thus accurately guiding further treatment.

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Section: Rathke Cleft Cysts: Typical Featuresmentioning

confidence: 99%

Craniopharyngioma and other cystic epithelial lesions of the sellar region: a review of clinical, imaging, and histopathological relationships

Zada¹,

Lin²,

Ojerholm³

et al. 2010

FOC

227

182

View full text Add to dashboard Cite

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“…They are the most common incidentally discovered sellar lesions, followed by pituitary adenomas (1), and are found in 13-33% of routine autopsies (2). They present as intra-sellar cysts with 60% of them showing suprasellar extension (3).…”

Section: Introductionmentioning

confidence: 99%

Outcome in surgically treated Rathke's cleft cysts: long-term monitoring needed

Trifănescu¹,

Stavrinides²,

Plaha³

et al. 2011

European Journal of Endocrinology

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Objective: To clarify the outcome of all cases of Rathke's cleft cysts (RCC) treated surgically and followed up in Oxford during a long-term period. Subjects and methods: The records of all patients with RCC seen in the Department of Endocrinology between January 1978 and June 2009 were reviewed. Results: A total of 33 patients (20 females, median age 43 years) were identified. At presentation, major visual field defects were detected in 58% of patients and gonadotrophin, ACTH and TSH deficiency in 60, 36 and 36% of patients respectively. Desmopressin treatment was required in 18% of patients. Treatment consisted of cyst evacuation combined with or without biopsy/removal of the wall. Post-operatively, visual fields improved in 83% of patients with impairment, whereas there was no reversal of ACTH or TSH deficiency or of diabetes insipidus. All but one subject had imaging follow-up during a mean period of 48 months (range 2-267). Cyst relapse was detected in 22% of patients at a mean interval of 29 months (range 3-48 months); in 57% of them, the recurrence was symptomatic. Relapse-free rates were 88% at 24-months and 52% at 48-months follow-up. At last assessment, at least quadrantanopia was reported in 19% of patients, gonadotrophin, ACTH and TSH deficiency in 50, 42 and 47% of patients respectively. Desmopressin treatment was required in 39% of patients. Conclusions: In this study of patients with RCC and long-term follow-up, we showed a considerable relapse rate necessitating long-term monitoring. Surgical intervention is of major importance for the restoration of visual field defects, but it does not improve endocrine morbidity, which in the long-term affects a substantial number of patients.

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“…They are common findings at autopsy, with a reported incidence of 5% to 33%, and account for 6%-10% of sellar lesions. 3,9,17,32,39,46,49 Although mostly asymptomatic, some RCCs can become sufficiently large to cause compressive effect on surrounding structures, resulting in neurological and endocrine disturbances. As a result, surgical intervention is recommended for symptomatic or at-risk patients.…”

mentioning

confidence: 99%

Individualized surgical strategies for Rathke cleft cyst based on cyst location

Fan¹,

Peng²,

Qi³

et al. 2013

JNS

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R athke cleft cysts (RCCs) are regarded as benign cystic lesions derived from a remnant of the Rathke pouch. They are common findings at autopsy, with a reported incidence of 5% to 33%, and account for 6%-10% of sellar lesions. 3,9,17,32,39,46,49 Although mostly asymptomatic, some RCCs can become sufficiently large to cause compressive effect on surrounding structures, resulting in neurological and endocrine disturbances. As a result, surgical intervention is recommended for symptomatic or at-risk patients.Traditionally, the 2 most common surgical approaches are the endonasal transsphenoidal route and the standard craniotomy. The endonasal approach is typically used for sellar lesions, whereas the craniotomy is indicated for suprasellar lesions. 2,11,38,40 Owing to its reduced invasiveness Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, ChinaObject. An assessment regarding both surgical approaches and the extent of resection for Rathke cleft cysts (RCCs) based on their locations has not been reported. The aim of this study was to report the results of a large series of surgically treated patients with RCCs and to evaluate the feasibility of individualized surgical strategies for different RCCs.Methods. We retrospectively reviewed 87 cases involving patients with RCCs (16 intrasellar, 50 intra-and suprasellar, and 21 purely suprasellar lesions). Forty-nine patients were treated via a transsphenoidal (TS) approach, and 38 were treated via a transcranial (TC) approach (traditional craniotomy in 21 cases and supraorbital keyhole craniotomy in 17). The extent of resection was classified as gross-total resection (GTR) or subtotal resection (STR) of the cyst wall. Patients were thus divided into 3 groups according to the approach selected and the extent of resection: TS/STR (n = 49), TC/STR (n = 23), and TC/GTR (n = 15).Results. Preoperative headaches, visual dysfunction, hypopituitarism, and diabetes insipidus (DI) resolved in 85%, 95%, 55%, and 65% of patients, respectively. These rates did not differ significantly among the 3 groups. Overall, complications occurred in 8% of patients in TS/STR group, 9% in TC/STR group, and 47% in TC/GTR group, respectively (p = 0.002). Cerebrospinal fluid (CSF) leakage (3%), new hypopituitarism (9%), and DI (6%) were observed after surgery. All CSF leaks occurred in the endonasal group, while the TC/GTR group showed a higher rate of postoperative hypopituitarism (p = 0.7 and p < 0.001, respectively). It should be particularly noted that preoperative hypopituitarism and DI returned to normal, respectively, in 100% and 83% of patients who underwent supraorbital surgery, and with the exception of 1 patient who had transient postoperative DI, there were no complications in patients treated with supraorbital surgery. Kaplan-Meier 3-year recurrence-free rates were 84%, 87%, and 86% in the TS/STR, TC/STR, and TC/GTR groups, respectively (p = 0.9).Conclusions. It is reasonable to adopt individualized surgical strategies for RCCs based on cyst location....

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Incidental pituitary lesions in 1,000 unselected autopsy specimens.

Abstract: Incidental lesions should be considered a cause of false-positive findings (6.1%) when an imaging diagnosis is made of a functioning pituitary microadenoma.

Cited by 337 publications

References 19 publications

Craniopharyngioma and other cystic epithelial lesions of the sellar region: a review of clinical, imaging, and histopathological relationships

Craniopharyngioma and other cystic epithelial lesions of the sellar region: a review of clinical, imaging, and histopathological relationships

Outcome in surgically treated Rathke's cleft cysts: long-term monitoring needed

Individualized surgical strategies for Rathke cleft cyst based on cyst location

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