Home

Rathke cyst radiopaedia

T2 hypointense Rathke cleft cyst | Radiology Case

Radiographic features. On imaging, a Rathke cleft cyst is seen as a well defined non-enhancing midline cyst within the sella arising between the anterior and intermediate lobes of the pituitary. 40% are purely intrasellar and 60% have suprasellar extension. Purely suprasellar location, although reported, is rare Rathke's cleft cysts are congenital non-neoplastic fluid filled cysts which arise from the embryonic remnants of Rathke's pouch (between anterior and intermediate lobes) and Rathke's pouch is a place where anterior and posterior glands meet which normally closes early in fetal development but a remnant often persists as a cleft. In some cases, this remnant gives rise to a large cyst called the Rathke's cleft cyst or pars intermedia cyst MRI findings represent predominantly cystic pituitary region mass, likely cystic pituitary adenoma or Rathke cleft cyst. The midline location and absence of septations, fluid-fluid levels, and hypointense rim on T2 favor the Rathke cleft cyst rather than the cystic pituitary adenoma 1 Normally enhancing pituitary gland is draped over the anterior right aspect of the cyst with mild elevation and deviation of the infundibulum to the right of midline. The apex of the cyst contacts without displacing the optic chiasm and proximal aspects of the pre-chiasmatic optic nerves. There is no extension into the cavernous sinuses and the cavernous carotid flow voids are maintained

Service catalog: EEA Surgery, Gamma Knife Radiosurger

Rathke's Cleft Cyst Surgery - World-Renowned Neurosurgeon

  1. antly cystic pituitary region mass, likely cystic pituitary adenoma or Rathke cleft cyst. The midline location and absence of septations, fluid-fluid levels, and hypointense rim on T2 favor the Rathke cleft cyst ra..
  2. MRI findings are consistent with Rathke's cleft cyst (RCC). The main differential diagnosis is cystic pituitary adenoma. Findings in favor of Rathke's cleft cyst: an intracystic nodule (highly suggestive) midline location within the gland no.
  3. Here is a case of Rathke cleft cyst with an intracystic nodule of low signal in T2 WI that is virtually pathognomonic. This patient has been under MRI follow up for 5 years with no detectable changes of this lesion

Rathke cleft cyst Radiology Reference - Radiopaedi

There is a well-defined midline cyst (10 x 8 x 6 mm) within the sella with fluid-fluid level seen on sagittal T1 and axial FLAIR. A thin peripheral enhancing rim of surrounding compressed pituitary tissue is noted. From the case: Rathke cleft cyst with fluid-fluid level. Annotated image Unfortunately, the histology was inconclusive, and based on the imaging benign features and lack of tumor cells, the diagnosis is made between either a Rathke's cleft cyst or arachnoid cyst

Tornwaldt cysts are almost always asymptomatic. However, if they become infected they can cause halitosis or periodic discharge of foul tasting fluid into the mouth. Some may present with otitis media due to obstruction of the Eustachian tube. A symptomatic cyst is also called Tornwaldt disease 7,8 This case demonstrates classic appearances of Rathke cleft cyst including the near-pathognomonic 'dot' of non-enhancing material within the cyst. ×. Articles. Log In. Cases. Sign Up. Courses. Quiz. Donate. About. ×. Menu. Search. ADVERTISEMENT: Radiopaedia is free thanks to our supporters and advertisers. Become a Gold Supporter and see no ads. Articles. Cases. Courses. Log In. Log in; Sign. This case demonstrates typical appearances of a Rathke cleft cyst, including the small hypo-intense 'dot' sign, which is said to be pathognomonic. ×. Articles. Log In. Cases. Sign Up. Courses. Quiz. Donate. About. ×. Menu. Search. ADVERTISEMENT: Radiopaedia is free thanks to our supporters and advertisers. Become a Gold Supporter and see no ads. Articles. Cases. Courses. Log In. Log in; Sign. Radiopaedia 2021 UPDATE Conference-only registration is now closed. Late registration for All-Access Pass and Free Country Pass holders ends this Friday - LEARN MORE Rathke cleft cyst

Rathke's cleft cyst Radiology Case Radiopaedia

  1. T2 hypointensity in a pituitary cyst is regarded as highly suggestive of a Rathke cleft cyst 1. T2 hypointensity in a pituitary cyst is regarded as highly suggestive of a Rathke cleft cyst 1. ×. Articles. Log In. Cases. Sign Up. Courses. Quiz. Donate. About. ×. Menu. Search. ADVERTISEMENT: Radiopaedia is free thanks to our supporters and advertisers. Become a Gold Supporter and see no ads.
  2. The patient went on to have a resection. Histology: Gross Description: The specimen is received in a single container labeled with the patient's demographics and SUPRASELLAR CYST. It consists of multiple fragments of thin translucent membrano..
  3. A fluid-fluid level may be seen in Rathke cysts, particularly if there has been a hemorrhage. Also, It can be a feature of proteinaceous concretions within the cyst fluid. The main differential diagnosis is a hemorrhagic pituitary adenoma
  4. Fortunately, this patient has not required surgery. Visual fields are normal. The lesion has not changed in 2 years of surveillance. An intracystic dot or nodule in a pituitary cystic lesion is essentially pathognomonic of a Rathke's cleft cyst
  5. This case demonstrates typical appearances of a Rathke cleft cyst, including the small hypo-intense 'dot' sign, which is said to be pathognomonic. ×. Articles. Log In. Cases. Sign Up. Courses. Quiz. Blog. Donate. About. ×. Menu. Search. ADVERTISEMENT: Radiopaedia is free thanks to our supporters and advertisers. Become a Gold Supporter and see no ads. Articles. Cases. Courses. Log In. Log in.
  6. Rathke's cleft cysts are congenital, non-neoplastic sellar and suprasellar cysts derived from remnants of Rathke's pouch. These cysts are found during routine autopsies in 13% to 22% of cases .With the availability of CT and MR imaging, these lesions are more commonly diagnosed preoperatively or discovered incidentally
  7. Rathke's cleft cyst and ACTH secreting pituitary microadenoma: simultaneous symptomati

Rathke's cleft cysts (RCCs) are benign, sellar and/or suprasellar lesions originating from the remnants of Rathke's pouch. Although a common finding in routine autopsies (12-33% of normal pituitary glands), symptomatic cases are rare and comprise 5-15% of all surgically resected sellar lesions. Small, asymptomatic RCC do not require surgical intervention, and their natural history is not clear. Radiopaedia.org Close. Finish Not needed End of previous page. Images; Study Questions; Findings; MRI - MRI pituitary Sagittal T1. Sagittal T2. Coronal T2. Coronal T1. Sagittal T1 C+. Coronal T1 C+. Question 1. What is the most likely diagnosis? Show Answer. Rathke cleft cyst. Question 2. How sure can you be of this diagnosis? Show Answer. Almost 100%. The presence of a hypointense T2 'dot. Radiopaedia • CC-by-nc-sa 3.0 • de. Rathke cleft cysts, also known as pars intermedia cysts, are non-neoplastic, sellar or suprasellar epithelium-lined cysts arising from the embryologic remnants of Rathke pouch in the pituitary gland. They are common lesions and usually incidentally identified. Epidemiology . common, found in ~15% (range 11-22%) of autopsies ; rare in childhood; mostly. Schubert, R. Rathke cleft cyst. Case study, Radiopaedia.org. (accessed on 17 Sep 2021) https://radiopaedia.org/cases/1424

ADVERTISEMENT: Radiopaedia is free thanks to our supporters and advertisers. Become a Gold Supporter and see no ads Case of the day: Rathke's cleft cyst - spontaneous regression. VIEW CASE: via our Facebook pag

Five cysts had both intra- and suprasellar components, one was entirely intrasellar, and the other was predominantly suprasellar in location. The size of the cysts ranged from 8 to 20 mm. CT scans demonstrated low-density homogeneous lesions in four cases. On MR images of three of these four cases, the cysts had the same intensity as cerebrospinal fluid on T1- and T2-weighted images, while in. purpose: identify blood product or dot sign in Rathke cleft cyst and to visualize the diaphragma sellae and arterial flow-voids; T1 C+ dynamic. sequence: small FOV coronal, obtained at multiple locations through the pituitary gland (e.g. 6) at multiple timepoints (e.g. 0, 30, 60, 90, 120 and 180 seconds) purpose: useful to identify microadenomas (which have delayed enhancement) and identify. BACKGROUND AND PURPOSE: Cystic pituitary adenomas may mimic Rathke cleft cysts when there is no solid enhancing component found on MR imaging, and preoperative differentiation may enable a more appropriate selection of treatment strategies. We investigated the diagnostic potential of MR imaging features to differentiate cystic pituitary adenomas from Rathke cleft cysts and to develop a. Fig 1. A Rathke cleft cyst in a 25-year-old woman with headaches. A, Sagittal T2-weighted image easily demonstrates a homogeneous hypointense-signal-intensity mass perfectly located on the midline between both pituitary lobes.B, Sagittal T1-weighted image barely shows the isointense-to-slightly-hyperintense signal intensity of the lesion

Rathke's cleft cysts can occur either in or above the sella turcica. On the images above there is a normal pituitary gland, a normal optic chiasm and a normal carotid artery on each side. The pituitary stalk is not identifiable, however, due to a round mass in this area. The mass has a high signal intensity on the unenhanced T1-images. Now the only two things that are this bright on unenhanced. Rathke's cleft cysts are usually a little larger. Anything over 3 mm, in my mind, is a potential Rathke's cleft cyst. They vary in size from several millimeters to several centimeters. They are, basically, similar to self-filling water balloons. They can increase in size as the cells lining the cyst produce more fluid. Some increase in size rather quickly while others take a very long time. Multiple logistic regression analysis showed that cystic pituitary adenomas and Rathke cleft cysts can be distinguished on the basis of the presence of a fluid-fluid level, septation, an off-midline location, and the presence of an intracystic nodule (P = .006, .032, .001, and .023, respectively). Among 24 patients in the external validation population, 22 were classified correctly on the. Rathke's cleft cysts sometimes occur together with pituitary adenomas. Rathke's Cleft Cyst Symptoms. Often, Rathke's cleft cysts do not cause symptoms. Many times, doctors find the cyst while a patient is undergoing a magnetic resonance imaging scan (MRI) for a different reason. If the tumor grows to a large size, it may cause symptoms because it is compressing surrounding structures. Larger. Fluid/fluid levels in Rathke cysts are uncommon but well recognized. It can be a feature of proteinaceous debris within the cyst fluid. Elevated prolactin is not due to the cyst excreting prolactin, rather a mass that compresses the pituitary st..

Object: Although most Rathke cleft cysts (RCCs) remain asymptomatic, some present with compression of surrounding structures and pituitary hormone dysfunction. A rare, but distinct presentation of the RCC includes hemorrhage into the cyst--a presentation that mimics the clinical syndrome of pituitary tumor apoplexy. The objective of this article is to present the authors' experience on the. Helps understand variant anatomy and related pathology (eg Rathke cleft cysts). History and etymology. Whenever appropriate, this section can clarify the etymology of an anatomical term or elaborate on the historical context of the term's name or eponym. Clinical importance . This section should include information about the structure that may be important in clinical work. For example, an. Rathke Cleft Cyst.— RCCs are benign sellar cysts derived from Rathke pouch remnants. They are lined with epithelium and contain mucoid material. In 71% of cases, the cysts are partially intrasellar and partially suprasellar in location (, 30). Purely suprasellar RCCs with a normal pituitary gland have also been reported (, 31). Although RCCs.

Aims: To determine the differential magnetic resonance imaging (MRI) features of pituitary adenoma, craniopharyngioma, and Rathke cleft cyst involving both intrasellar and suprasellar regions. Materials and methods: The MRI images of 64 patients with pituitary adenoma (n=38), craniopharyngioma (n=13), or Rathke cleft cyst (n=13) were retrospectively reviewed by three neuroradiologists https://radiopaedia.org. RADIOLOGY Imaging Findings •Well-circumscribed. •Spherical or ovoid shaped lesions in the sellar region. •Diameter ranges from 5 to 40 mm. •Little or no enhancement on MRI with Gadolinium. •The cyst can be hyperintense or hypointense on MRI T 1 and T 2. •Typically, non-calcified and of homogenous low attenuation on non-contrast CT scan. •Patients should. Occasionally, Rathke's cleft cysts can be infected. If so, the recurrence rate is much higher than the usual recurrence rate of about 8-12%. Some people are said to have pituitary abscesses when, in fact, what they had was an infected Rathke's cleft cyst. Arachnoid cysts are in invagination of the arachnoid membrane, that usually lines the skull cavity, into the sella or suprasellar region. MR Imaging Findings of Rathke's Cleft Cysts: Significance of Intracystic Nodules. AJR 2000; Смотр. Tominaga JY1, Higano S, Takahashi S. Characteristics of Rathke's cleft cyst in MR imaging. Magn Reson Med Sci 2003 Apr; 1;2(1): 1-8. Pubmed; Dr Donna D'Souza et al. Rathke's cleft cyst. radiopaedia Radiopaedia.org; Park M, Lee SK, Choi J, Kim SH, Kim SH, Shin NY, Kim J, Ahn SS.

Rathke cleft cyst Radiology Case Radiopaedia

Cysts and cystic-appearing intracranial masses have a broad imaging and pathologic spectra. The authors review the pathologic findings, origin, radiologic appearance, and differential diagnosis of many different intracranial cysts. A diagnostic algorithm based on most common anatomic locations is pr The cysts usually present as a unilocular cystic mass extending inferiorly within the neck, paralleling the sternocleidomastoid muscle, or as a dumbbell-shaped left cervicothoracic cystic mass [Figure 11]. Figure 11(A, B) Thymic cyst. (A) The axial contrast-enhanced CT scan shows a cystic lesion in the right side of the neck caudal to the thyroid gland displacing the trachea to the left. (B. Support Radiopaedia dee see fewer ads. Arachnoid cyst Arachnoid cyst. Microcyst formation was eathke in the emigrating epithelial cells. They also had numerous typical desmosomes. Check for errors and try again. Discussion Symptomatic Rathke's cleft cyst is a rare clinical occurrence. Patología de la hipófisis | Patología | McGraw-Hill Medical. Articles Cases Courses Quiz. About Blog Go.

Other characteristics such as extrasellar versus intrasellar location, nature of contrast material enhancement, the presence of cystic components, and clinical findings permitted differentiation among less common lesions, including granulomatous disease, metastases, chiasmatic glioma, arachnoid cyst, hypothalamic glioma, schwannoma, germinoma, epidermoid, Rathke cyst, chordoma, chondrosarcoma. A Rathke cleft cyst (RCC) can usually be differentiated because it is rarely calcified, whereas 64-92% of craniopharyngiomas are calcified. An RCC is also usually associated with anterior infundibular displacement and does not have a solid component. In addition, it shows contrast enhancement less frequently than other tumors do. Small RCCs may be indistinguishable from the rare intrasellar.

Rathke pouch Radiology Reference Article Radiopaedia

Rathke cleft cyst with fluid-fluid level Radiology Case

  1. Langerhans Cell Histiocytosis. Craniopharyngioma. Pulmonary Hypertrophic Osteoarthropathy. Retrograde Jejunogastric Intussusception and Novel Reduction. Denys-Drash Syndrome. Dialysis-related Amyloidosis. Primary Meningeal Rhabdomyosarcoma. Langerhans Cell Histiocytosis. Device Applications Specialists Deliver Technology and Expertise
  2. Pituitary cysts are not rare and if large enough they can cause symptoms by compression of the pituitary gland or suprasellar structures. Wikipedia • CC BY-SA 3.0. Hallo! Radiopaedia • CC-by-nc-sa 3.0 • de. Mostly/purely cystic pituitary region masses have a short differential. Differential diagnosis. Rathke cleft cyst; arachnoid cyst; empty sella; craniopharyngioma (adamantinomatous.
  3. Radiopaedia.org, the online collaborative radiology resource. Impact. Since its inception in 2005, Radiopaedia has grown to become one of the most important medical resources for literally millions of individuals from around the world, particularly those from low and middle-income regions who do not have access to traditional pay-wall resources
  4. Rathke cleft cyst | Article | Radiopaedia.org. A Rathke cleft cyst (RCC) is a non-neoplastic, sellar or suprasellar epithelium-lined cyst arising from the embryologic remnants of Rathkes pouch in the pituitary World News on The Net: Asianfansclub. Kemarin, Ariel Lin -2 tahun yang lalu, dia menderita pituitary sella cyst- mengatakan bahwa di masa yang akan datang, dia akan mengurangi beban.
  5. Sella: Rathke Cleft Cyst. CT • 75% hypodense • 25% iso/hyperdense • Ca++ rare • May be difficult to differentiate from other benign cysts or craniopharyngiomas Rathke Cleft Cyst: CT. Imaging Features • Signal varies - cyst content • 50-60% T1 hyperintense • 30-40% follow CSF • 75% intracystic nodule • +/- rim enhancement Rathke Cleft Cyst: MR. Rathke Cleft Cyst. Rathke Cleft.

The vast majority of Rathke's cleft cysts are asymptomatic and are incidentally found when the pituitary is imaged for other reasons. bolsa de rathke. eathke This div only appears when the trigger link is hovered over. Visual disturbance includes deteriorated vision, visual field defect, and diplopia. These cells alternated with the ciliated cells. Keratohyaline granules were not seen. An. Over several weeks, Rathke's pouch undergoes constriction at its base until it completely separates from the oral epithelium and near its final position as the adenohypophysis. Gross Anatomy. The fully developed pituitary gland is peasized and weighs approximately 0.5 g. The gland is enveloped by dura and sits within the sella turcica of sphenoid bone. The superior aspect of the pituitary is. Rathke cleft cyst with squamous metaplasia: Intrasellar, squamous epithelium, as well as ciliated or mucus containing cells, no wet keratin, no calcifications Beta catenin negative nuclei. Xanthogranuloma of sellar region Accurate preoperative assessment of the hepatic vascular and biliary anatomy is essential to ensure safe and successful hepatic surgery. Such surgical procedures range from the more complex, like tumor resection and partial hepatectomy for living donor liver transplantation, to others performed more routinely, like laparoscopic cholecystectomy. Modern noninvasive diagnostic imaging techniques.

Tornwaldt cyst Radiology Reference Article Radiopaedia

Polymicrogyria is a relatively common malformation of cortical development, characterised by multiple small gyri with abnormal cortical lamination. The different forms of polymicrogyria encompass a wide range of clinical, aetiological, and histological findings. Advances in imaging have improved the diagnosis and classification of the condition Discussion Symptomatic Rathke's cleft cyst is a rare clinical occurrence. About 3 ml of white mucous material was aspirated from it. A year-old woman was admitted to Nagoya University Hospital complaining of visual field defects and amenorrhea. There were no other general physical or neurological signs. These symptoms usually lasted a week and recurred at monthly intervals. Craniopharyngioma. Rathke Cleft Cyst. Rathke cleft cysts are common benign remnants of the Rathke cleft that may be located in the sellar compartment, the suprasellar compartment, or both (33,36). Although most such cysts are found incidentally, they occasionally cause headaches, visual disturbances, and diabetes insipidus. About half of Rathke cleft cysts show hyperintense signal at T1-weighted imaging . The.

Rathke cleft cyst - with dot sign Radiology Case

Rathke's cleft cysts manifesting with diabetes insipidus (DI) can be divided into acute or chronic types. • The acute onset cases present with sudden headaches and no pituitary dysfunction. • Histopathological examination of the acute onset cases reveal inflammatory findings involving the posterior pituitary only. • The chronic onset cases present with chronic headache and. INH = infundibuloneurohypophysitis, RCC = Rathke cleft cyst, Whipple's = Whipple's disease. View larger version (173K) Fig. 4 — Sagittal graphic of pituitary stalk anatomy: infundibulum is composed of infundibular stem ( curved arrow ), median eminence of hypothalamus, from which it arises, and pars tuberalis ( straight arrow ) If Rathke's cleft cyst and craniopharyngioma do represent a continuum, it seems likely that the cysts that resemble craniopharyngiomas would to some degree share a craniopharyngioma's potential for regrowth. If a complex cyst is found at operation, therefore, the patient should have careful follow-up with serial MRI studies. In cases of recurrence, a second operation with excision and drainage. Sequential MR Enhancement Pattern in Normal Pituitary Gland and in Pituitary Adenoma William T. C. Yuh,1 David J. Fisher,1 Hoang D. Nguyen,1 E. Turgut Tali,1 Feng Gao,1 Tereasa M. Simonson,1 and Janet A. Schlechte2 PURPOSE: To measure and evaluate the temporal enhancement characteristics of the norma

Rathke cleft cyst - T2 hypointense Radiology Case

Киста кармана Ратке с dot sign. Гомогенный, не накапливающий контраст узелок в просвете кисты (dot sign) является практически патогномоничным для кисты кармана Ратке и может быть использован. Other rare findings such as calcifications, cyst formation, and extradural involvement have also been described. Preoperative suggestion of intraspinal sarcoidosis may alert the pathologist to look carefully for granulomas and giant cells because sarcoidosis can mimic neoplasm and lead to frozen section misinterpretation. The correct diagnosis and early treatment with steroids can minimize. F. 42 yr. Rathke's cleft cyst. MRI: M. 25 yr. Hypothalamic hamartoma. Text: F. 3 yr. Hypothalamic hamartoma : F. 3 yr. Hypothalamic hamartoma F. 1 yr. 7m. Hypothalamic hamartoma: Наверх. Войти Зарегистрироваться; Ср, 10/07/2013 - 15:55 #2. Катенёв Валенти... Не на сайте . Был на сайте: 2 года 8 месяцев назад . З Rathke cleft cyst | Article | Radiopaedia.org. A Rathke cleft cyst (RCC) is a non-neoplastic, sellar or suprasellar epithelium-lined cyst arising from the embryologic remnants of Rathkes pouch in the pituitary World News on The Net: Asianfansclub. Kemarin, Ariel Lin -2 tahun yang lalu, dia menderita pituitary sella cyst- mengatakan bahwa di masa yang akan datang, dia akan mengurangi beban. Rathke's cleft cyst. Case 37. Rathke cleft cyst. Case 38. Optic nerve glioma. Case 39. Neurofibromatosis type 1 - optic nerve glioma and orbital plexiform neurofibromas Neurofibromatosis type 1: orbital manifestations | Radiology Case | Radiopaedia.org The patient has manifestations of neurofibromatosis type 1 as evident by sphenoid wing dysplasia (bare orbit sign) as well as plexiform.

The third ventricle lies in the center of the brain. It is surrounded by critical nuclear structures (the hypothalamus and thalami) and important glandular structures (the pituitary and pineal glands). Although a wide array of pathologic processes may involve the third ventricle, most are extrinsic masses. By understanding the anatomic boundaries of the third ventricle and its relationship to. Rathke's cleft cysts . Rathke's pouch is an evagination at the roof of the developing mouth which gives rise to the anterior pituitary. The cysts are benign sellar and suprasellar lesions (most commonly pars intermedia) arising from the epithelial remnants of Rathke's pouch which contain mucoid or gelatinous material within a thin cyst wall. 1% of all intracranial lesions found in 13-33%. There are various kinds of pituitary tumors: adenomas, craniopharyngiomas, and Rathke's cleft cysts. Most are benign (not cancer) and are often curable. Treatment options aim to remove the tumor or control its growth and correct hormone levels with medications. Anatomy of the pituitary and sella . The pituitary gland is a small, bean-shaped organ that sits at the base of the brain, behind. Craniopharyngioma. Figure 1: This suprasellar craniopharyngioma demonstrates a high degree of complexity, with heterogeneous, avid enhancement on coronal (top left) and sagittal (top right) postcontrast T1WI. (Bottom) A low-signal-intensity highly proteinaceous cyst is also present within the posterolateral aspect of this mass on axial T2WI

Rathke cleft cyst - big | Image | RadiopaediaRathke's cleft cyst (with excellent dot sign) | RadiologyRathke's cleft cyst | Image | RadiopaediaRathke cleft cyst - big - path proven | Radiology CaseTornwaldt cyst | Radiology Reference Article | Radiopaedia

La cisti della tasca di Rathke è una formazione benigna che si può trovare sull'ipofisi nel cervello e in particolare è una cisti piena di liquido che si trova nella porzione posteriore dell'ipofisi anteriore. Essa si forma quando la tasca di Rathke non si sviluppa correttamente ed è di dimensioni comprese tra 2 e 40 mm di diametro.. Cisti asintomatiche sono comuni e vengono rilevate in. Rathke's cleft cysts: surgical-MRI correlation in 16 symptomatic cases. (1/80) MRI demonstrates essentially the same findings and presumed diagnosis of dermoid cyst was made. (radiopaedia.org) Renal 4. A CECT scan of the abdomen revealed bilateral renal tumors (4 cm on the right side and 1 cm on the left side) and multiple pancreatic cysts ( Figure 1 ). urotoday.com) A CECT scan of the. After sellar cyst wall fenestration, some authors have advocated cyst wall resection and increasing communication between the AC and suprasellar subarachnoid space (SAS). This study is a report of the authors' experience using a simplified approach to reinforce a defective diaphragma sellae or unseen arachnoid diverticulum by deliberately not enlarging the AC-SAS communication and obliterating.