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Campana C, Nista F, Castelletti L, Caputo M, Lavezzi E, Marzullo P, Ferrero A, Gaggero G, Canevari FR, Rossi DC, Zona G, Lania A, Ferone D, Gatto F. Clinical and radiological presentation of parasellar ectopic pituitary adenomas: case series and systematic review of the literature. J Endocrinol Invest 2022; 45:1465-1481. [PMID: 35147925 DOI: 10.1007/s40618-022-01758-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 01/30/2022] [Indexed: 02/04/2023]
Abstract
PURPOSE Parasellar ectopic pituitary adenomas (pEPAs) are extremely rare tumors located out of the sella turcica. PEPAs are heterogeneous entities in terms of anatomical localization and secretion of anterior pituitary hormones. METHODS Multicenter retrospective study. Clinical charts' consultation of patients diagnosed with parasellar lesions, to identify all subjects fulfilling the diagnostic criteria of parasellar EPAs. Systematic review of the literature focused on the medical management of prolactin-secreting pEPAs and on the prevalence of radiological bone invasion in pEPAs. RESULTS We identified four cases of pEPAs: (1) 54-year-old female with a prolactin-secreting suprasellar EPA successfully treated with cabergoline; (2) 74-year-old male with a non-functioning EPA of the sphenoidal sinus treated with endoscopic transsphenoidal surgery; (3) 75-year-old female with a giant lesion of the skull base (maximum diameter 7.2 cm) diagnosed as a non-functioning EPA after biopsy; (4) 49-year-old male with a silent corticotroph EPA of the sphenoidal sinus and clivus. Three out of four cases had radiological evidence of invasion of the surrounding bone structures. A systematic review of the literature highlighted that medical therapy can be effective in prolactin-secreting pEPAs. Overall, we found mention of local invasiveness in 65/147 cases (44.2%), confirmed by radiological signs of bone invasion/erosion. CONCLUSION Our experience confirms the heterogeneity of pEPAs in terms of clinical and radiological presentation, as well as hormone secretion. PEPAs show a high frequency of radiological bone invasion, though similar to that of sellar pituitary adenomas. Although extremely rare, pEPAs need to be considered in the differential diagnosis of parasellar lesions.
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Affiliation(s)
- C Campana
- Endocrinology Unit, Department of Internal Medicine and Center of Excellence for Biomedical Research, University of Genoa, Genoa, Italy
| | - F Nista
- Endocrinology Unit, Department of Internal Medicine and Center of Excellence for Biomedical Research, University of Genoa, Genoa, Italy
| | - L Castelletti
- Department of Radiology, Ospedale di Lavagna, Lavagna, Italy
| | - M Caputo
- Endocrinology, Department of Translational Medicine, Università del Piemonte Orientale, Novara, Italy
- Department of Health Sciences, Università del Piemonte Orientale, Novara, Italy
| | - E Lavezzi
- Endocrinology Unit, IRCCS Humanitas Research Hospital and Humanitas University, Rozzano, Italy
| | - P Marzullo
- Endocrinology, Department of Translational Medicine, Università del Piemonte Orientale, Novara, Italy
- Laboratorio di Ricerche Metaboliche, IRCCS Istituto Auxologico Italiano, Piancavallo, Verbania, Italy
| | - A Ferrero
- Endocrinology, Department of Translational Medicine, Università del Piemonte Orientale, Novara, Italy
| | - G Gaggero
- Department of Clinical Pathology, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - F R Canevari
- Unit of Otorhinolaryngology-Head and Neck Surgery, University of Genoa, Genoa, Italy
| | - D C Rossi
- Division of Neurosurgery, Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - G Zona
- Division of Neurosurgery, Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - A Lania
- Endocrinology Unit, IRCCS Humanitas Research Hospital and Humanitas University, Rozzano, Italy
| | - D Ferone
- Endocrinology Unit, Department of Internal Medicine and Center of Excellence for Biomedical Research, University of Genoa, Genoa, Italy
- Endocrinology Unit, IRCCS Ospedale Policlinico San Martino, 16132, Genoa, Italy
| | - F Gatto
- Endocrinology Unit, IRCCS Ospedale Policlinico San Martino, 16132, Genoa, Italy.
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Zhu J, Wang Z, Zhang Y, Li X, Liu J, Deng K, Lu L, Pan H, Wang R, Yao Y, Zhu H. Ectopic pituitary adenomas: clinical features, diagnostic challenges and management. Pituitary 2020; 23:648-664. [PMID: 32757141 DOI: 10.1007/s11102-020-01071-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
PURPOSE Ectopic pituitary adenomas (EPAs) are extremely rare pituitary adenomas located outside the sella turcica without any connection with intrasellar components. This study aims to review all the reported cases to date and describe the clinical characteristics of EPAs. METHODS In a retrospective chart review, 14 patients were identified with EPAs in our hospital. A literature review was performed, and 166 cases in the literature met the criteria. Clinical data were analyzed. RESULTS Of 180 patients with EPAs, the mean age at diagnosis was 45.4 years, and 66.5% of the patients were females. EPAs were mainly located in the sphenoid sinus (34.4%) and suprasellar region (25.6%), followed by the clivus (15.6%), cavernous sinus (13.3%) and nasopharynx (5.6%). Adrenocorticotropic hormone (ACTH)-secreting (38.9%) and nonfunctioning (27.2%) adenomas were predominant. Patients with suprasellar EPAs were more likely to present menstrual disorders and visual changes, while patients with clival EPAs were more likely to suffer from headaches. EPAs in the cavernous sinus and suprasellar space were more likely to be initially misdiagnosed as a suspicious intrasellar mass on imaging examination. The complete tumor resection rates for EPAs in the sphenoid sinus, suprasellar region, clivus, cavernous sinus and nasopharynx were 72.3%, 88.6%, 45.0%, 73.3% and 88.9%, respectively. CONCLUSIONS EPA clinical characteristics varied across different tumor locations and hormone-secreting types. In addition to comprehensive hormone evaluation and careful review of imaging data, nuclear medicine and surgical biopsy should also be considered when facing differential difficulty. EPA management should be individualized.
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Affiliation(s)
- Jianyu Zhu
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China
| | - Zhicheng Wang
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China
| | - Yi Zhang
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China
| | - Xiaoxu Li
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China
| | - Jie Liu
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China
| | - Kan Deng
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China
| | - Lin Lu
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China
| | - Hui Pan
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China
| | - Renzhi Wang
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China
| | - Yong Yao
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China.
| | - Huijuan Zhu
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China.
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Zhu J, Wang Z, Zhang Y, Liu J, Li X, Deng K, Lu L, Yao Y. Suprasellar pituitary adenomas: a 10-year experience in a single tertiary medical center and a literature review. Pituitary 2020; 23:367-380. [PMID: 32378170 DOI: 10.1007/s11102-020-01043-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND Suprasellar pituitary adenomas (SPAs) are a special type of pituitary adenoma. Although dozens of SPA cases have been reported, the exact definition and the characteristics of SPA have not been exhaustively discussed before. METHODS In a retrospective electronic medical records review, 13 patients with SPA were identified in our hospital between January 2010 and December 2019. A literature review was performed by searching the online database PubMed, and 39 cases conformed to the criteria based on the previous literature. Data regarding clinical symptoms, imaging manifestations, surgical information and follow-ups were analyzed. RESULTS The mean age at diagnosis of 52 patients with SPA was 36.73 years, and most of the patients were female (61.5%). The most common hormone-secreting subtypes of SPA were nonfunctioning (36.5%) and ACTH-secreting (34.6%) SPA. Macroadenomas (68.9%) were more common than microadenomas (31.1%). The origins of the SPAs included the intrasellar pituitary gland (type I), the subdiaphragmatic (type IIa) and supradiaphragmatic (type IIb) part of the pituitary stalk, and the suprasellar peri-infundibular region (type III). The most common anatomic subtype of SPA was type III, and type IIb was also common. The most common presentations of SPA were visual symptoms, especially for type III SPA. In addition, 64.7% and 73.1% of type IIb and III SPAs, respectively, were suspected to be of suprasellar origin based on presurgical imaging examination. Patients with tumors of suspected suprasellar origin were more likely to receive transcranial surgery (TCS) initially than those with tumors of suspected intrasellar origin (70.6% vs. 22.2%, p = 0.0013). The intact rate for the pituitary stalk after surgery for type II SPA was lower than that for type I and III SPA (52.6% vs. 92.6%, p = 0.0036). More patients with type II SPA experienced postoperative central diabetes insipidus (CDI) than those with type I and III SPA (57.9% vs. 11.1%, p = 0.0011). There was no significant difference in the incidence of postoperative CDI between transsphenoidal surgery (TSS) and TCS (p = 0.1304). Nine patients in our hospital received extended endoscopic TSS; only one experienced tumor recurrence, and no severe complications occurred after surgery. CONCLUSIONS SPAs could be defined as pituitary adenomas completely or partially located in the suprasellar region. There were both similarities and differences among the different anatomic subtypes of SPA. For patients who were suspected of having SPAs, visual field tests, pituitary hormone evaluation and MRI were necessary. Because imaging examination is not a reliable method, surgery is the only way to confirm the tumor origin. Extended endoscopic TSS might be a safe and efficient approach to remove these tumors, but more studies are needed to verify this conclusion. For type II SPA, the pituitary stalk should be carefully protected during surgery, and postoperative CDI should be monitored.
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Affiliation(s)
- Jianyu Zhu
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China
| | - Zhicheng Wang
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China
| | - Yi Zhang
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China
| | - Jie Liu
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China
| | - Xiaoxu Li
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China
| | - Kan Deng
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China
| | - Lin Lu
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China
| | - Yong Yao
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China.
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Abstract
BACKGROUND Ectopic pituitary adenomas (EPAs) are rare, and the suprasellar cistern seems to be the most common location. At this time, no detailed original classification, diagnosis, or treatment protocols for suprasellar pituitary adenomas (SPAs) have been described. CASE DESCRIPTION A 19-year-old man showed visual disturbances and lack of libido for 3 years, he suffered a sharp decline in vision with only light perception in the last week. Magnetic resonance imaging scans revealed a large suprasellar cystic lesion with a normal pituitary in the sella turcica. Endocrinological findings showed an extremely high prolactin level of 1250 ng/mL. Because of the sharp decline in vision, the patient underwent total removal of the suprasellar lesion using a transfrontal interhemispheric approach. The tumor pedicle originated in the lower pituitary stalk without any connection to the anterior pituitary gland in the sella turcica, while the diaphragma sellae was incomplete. Clinical and endocrinological cure criteria were fulfilled and postoperative pathology confirmed a prolactin-secreting pituitary adenoma. CONCLUSION Ectopic suprasellar pituitary adenomas (ESPAs) are extremely rare intracranial extracerebral tumors. SPAs can be classified into three types according to their origin and their relationship with surrounding tissue. Only type III is theoretically a true ectopic, based on previous reports. Thus, ESPAs are uncommon compared to other EPAs. Our case is the first reported case of a type IIa 'E'SPA and the first description of this subtype classification until now. The pars tuberalis may be different from the pars distalis, and each subtype of adenohypophyseal cells may have different migration characteristics, which leads to different proportions of each hormone-secreting subtype in SPAs and EPAs. Transsphenoidal surgery is minimally invasive, but transcranial surgery may remain a universal option for the treatment of suprasellar lesions.
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Affiliation(s)
- Heng-Jun Zhou
- Department of Neurosurgery, The First Affiliated Hospital, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, China
| | - De-Sheng Pan
- Department of Neurosurgery, The First Affiliated Hospital, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, China
| | - Xiao-Qun Ba
- Department of Pathology, The First Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Ren-Ya Zhan
- Department of Neurosurgery, The First Affiliated Hospital, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, China
| | - Xiu-Jue Zheng
- Department of Neurosurgery, The First Affiliated Hospital, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, China
| | - Yue-Hui Ma
- Department of Neurosurgery, The First Affiliated Hospital, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, China.
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Mathur M, Gupta S. Looking beyond the Sella: Suprasellar Infundibular Prolactinoma. SA J Radiol 2016. [DOI: 10.4102/sajr.v20i1.1036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
This is a case report of a 24-year-old female who presented with galactorrhoea and elevated serum prolactin levels of 150 ng/mL. The intrasellar pituitary gland demonstrated normal morphology and characteristic enhancement. The pituitary stalk was thickened and revealed a non-enhancing lesion on dynamic contrast imaging, which was interpreted as a functioning microadenoma. The patient exhibited significant clinical improvement after initiation of therapy with a dopamine agonist, Cabergoline.
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Wang Q, Lu XJ, Sun J, Wang J, Huang CY, Wu ZF. Ectopic Suprasellar Thyrotropin-Secreting Pituitary Adenoma: Case Report and Literature Review. World Neurosurg 2016; 95:617.e13-617.e18. [PMID: 27567574 DOI: 10.1016/j.wneu.2016.08.062] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Revised: 08/12/2016] [Accepted: 08/13/2016] [Indexed: 10/21/2022]
Abstract
BACKGROUND Ectopic thyroid-stimulating hormone (TSH)-secreting pituitary adenomas are rare and can often be misdiagnosed as primary hyperthyroidism. We present a case of an ectopic suprasellar TSH-secreting pituitary adenoma. A literature review of previously reported ectopic TSH-secreting and suprasellar pituitary adenomas is included to illustrate the clinical characteristics of this disease entity and the diversity of operative approaches to treating ectopic suprasellar pituitary adenomas. CASE DESCRIPTION A 46-year-old man presented with typical clinical signs of hyperthyroidism and a history of progressive visual field impairment and vision loss. Laboratory investigations revealed that the patient had elevated levels of free thyroxine and free triiodothyronine and a normal level of TSH. Neuro-ophthalmologic examination showed right eye/left eye = 1.0/0.6 and left temporal hemianopia. Magnetic resonance imaging revealed a mass located in the suprasellar space. The patient underwent preoperative short-term octreotide treatment followed by gross total resection of the tumor via the extended endoscopic endonasal transtuberculum sellar approach. At 6-month follow-up evaluation, the patient's endocrinologic function tests met the criteria for cure, and magnetic resonance imaging revealed a normal pituitary gland and stalk with no tumor recurrence. Histologic diagnosis confirmed the presence of a TSH-secreting pituitary adenoma. CONCLUSIONS To the best of our knowledge, this is the first reported case of an ectopic suprasellar TSH-secreting pituitary adenoma. Preoperative preparation and complete resection are the keys to a cure. The extended endoscopic endonasal transtuberculum sellar approach is an alternative minimally invasive method for the removal of an ectopic suprasellar pituitary adenoma.
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Affiliation(s)
- Qing Wang
- Department of Neurosurgery, Neuroscience Center, Wuxi Second Hospital Affiliated with Nanjing Medical University, Wu'xi, Jiangsu Province, China
| | - Xiao-Jie Lu
- Department of Neurosurgery, Neuroscience Center, Wuxi Second Hospital Affiliated with Nanjing Medical University, Wu'xi, Jiangsu Province, China.
| | - Jun Sun
- Department of Neurosurgery, Neuroscience Center, Wuxi Second Hospital Affiliated with Nanjing Medical University, Wu'xi, Jiangsu Province, China
| | - Jing Wang
- Department of Neurosurgery, Neuroscience Center, Wuxi Second Hospital Affiliated with Nanjing Medical University, Wu'xi, Jiangsu Province, China
| | - Ci You Huang
- Department of Endocrinology, Wuxi Second Hospital Affiliated with Nanjing Medical University, Wu'xi, Jiangsu Province, China
| | - Zhi Feng Wu
- Department of Ophthalmology, Wuxi Second Hospital Affiliated with Nanjing Medical University, Wu'xi, Jiangsu Province, China
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Kinoshita Y, Tominaga A, Arita K, Hama S, Sakoguchi T, Sugiyama K, Kurisu K. Supra-diaphragmatic pituitary adenoma removed through the trans-tuberculum sellae approach. Case report. Neurol Med Chir (Tokyo) 2013; 52:91-5. [PMID: 22362291 DOI: 10.2176/nmc.52.91] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
A 59-year-old woman presented with a rare supra-diaphragmatic pituitary adenoma manifesting as a mass lesion. Her baseline data and the response of anterior pituitary hormones to the provocation test were within the normal range. Magnetic resonance imaging showed a homogeneously enhanced tumor located on the diaphragma sellae. The tumor was totally removed by the endonasal trans-tuberculum sellae approach under combined microscopic and endoscopic observation. Her postoperative course was uneventful and the histological diagnosis was pituitary adenoma located in the suprasellar region. The trans-tuberculum sellae approach is a less invasive method to remove pituitary adenoma located in the suprasellar region.
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Affiliation(s)
- Yasuyuki Kinoshita
- Department of Neurosurgery, Graduate School of Biomedical Sciences, Hiroshima University, Minami-ku, Hiroshima, Japan
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Simsir IY, Kocabas GU, Sahin SB, Erdogan M, Cetinkalp S, Saygili F, Yilmaz C, Ozgen AG. A case of an ectopic prolactinoma. Gynecol Endocrinol 2012; 28:148-9. [PMID: 21780951 DOI: 10.3109/09513590.2011.589923] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
A 34-year-old female presented to our clinic with a 1.5 year history of secondary amenorrhea and galactorrhea. Prolactin (PRL) level was found to be 151.89 ng/ml. Pituitary imaging was reported to be normal. An examination of the patient revealed that PRL level was still high so the dose of cabergoline was further increased and subsequently, bromocriptine was added to the treatment. There was no reduction in PRL levels in controls. A scanning was performed to look for an ectopic focus. Abdominal computerized tomography revealed a heterogenous mass lesion originating from the uterus. Octreotide scintigraphy was performed and we observed an involvement consistent with the mass in the uterus. The patient underwent abdominal total hysterectomy. PRL dropped to 0.4 ng/ml the next day after the operation. The pathology result was a low-grade malignant mesenchymal tumor. Prolactin was found to be immunohistochemically negative. However, galactorrhea disappeared postoperative and PRL levels are still low. Elevated levels of PRL, resistant to bromocriptine and cabergoline, rapidly returned to normal after hysterectomy, which obviously indicates that hyperprolactinemia was associated with the myoma of the uterus.
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Affiliation(s)
- Ilgin Yildirim Simsir
- Ege University Medical Faculty, Deparment of Internal Medicine, Division of Endocrinology and Metabolism, Izmir, Turkey.
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Guerrero CA, Krayenbühl N, Husain M, Krisht AF. ECTOPIC SUPRASELLAR GROWTH HORMONE-SECRETING PITUITARY ADENOMA. Neurosurgery 2007; 61:E879; discussion E879. [DOI: 10.1227/01.neu.0000298921.47495.42] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Carlos A. Guerrero
- Department of Neurosurgery, University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - Niklaus Krayenbühl
- Department of Neurosurgery, University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - Muhammad Husain
- Department of Neuropathology, University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - Ali F. Krisht
- Department of Neurosurgery, University of Arkansas for Medical Sciences, Little Rock, Arkansas
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Mitsuya K, Nakasu Y, Nioka H, Nakasu S. Ectopic Growth Hormone-Releasing Adenoma in the Cavernous Sinus-Case Report-. Neurol Med Chir (Tokyo) 2004; 44:380-5. [PMID: 15347217 DOI: 10.2176/nmc.44.380] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
A 55-year-old woman presented a rare ectopic pituitary adenoma in the right cavernous sinus manifesting as acromegaly. The tumor was removed via transsphenoidal approach. Intraoperative observation showed the adenoma was located entirely within the right cavernous sinus, and separated from the normal pituitary gland by the medial wall of the cavernous sinus. There was no communication between the tumor and the pituitary. Histological examination showed a growth hormone-releasing adenoma. Including our case, only eight of 86 reported ectopic adenomas have occurred in the cavernous sinus. Such ectopic presentation may be responsible for failed transsphenoidal surgery for endocrinologically active tumors.
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Affiliation(s)
- Koichi Mitsuya
- Division of Neurosurgery, Shizuoka Cancer Center Hospital, Sunto-gun, Shizuoka, Japan.
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