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Oper Neurosurg (Hagerstown) 2022 Jul 11;23(1):e77-e78. Epub 2022 May 11.

Department of Neurosurgery, Mayo Clinic Hospital, Phoenix, Arizona, USA.

Indian J Radiol Imaging 2022 Mar 28;32(1):127-131. Epub 2022 Feb 28.

UOC Radiodiagnostica e Neuroradiologia, Dipartimento di Diagnostica per Immagini, Radioterapia, Oncologia ed Ematologia, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy.

We present the first case of clival cystic chordoma with extradural location, transdural transgression, and moderate bone involvement in a 10-year-old girl. Chordoma showed unconventional appearances on computed tomography (CT) and magnetic resonance imaging (MRI), due to cystic components, extradural space location with extensive intradural extension, moderate superficial bone involvement. Surgery confirmed the extradural location and histopathological examination revealed cystic chordoma. Read More

Cureus 2022 May 17;14(5):e25066. Epub 2022 May 17.

Department of Neurology, Mount Auburn Hospital, Harvard Medical School, Boston, USA.

Cranial dermoid cysts are rare, embryologic tumors containing fat, hair, and other ectodermal elements. They occur most frequently in the posterior fossa and are typically diagnosed as incidental findings on brain imaging done for an unrelated reason. Traumatic rupture of a previously unidentified intracranial dermoid cyst can mimic symptoms of post-concussion syndrome and should be ruled out with magnetic resonance imaging (MRI). Read More

Fertil Steril 2022 Jun 9. Epub 2022 Jun 9.

Department of Obstetrics and Gynecology, Faculty of Medicine, University of Freiburg, Germany.

Objective: To share our experience of intravenous indocyanine green (ICG) application during conservative ovarian surgery in a young patient with adnexal torsion, a large ovarian cyst, and apparent ovarian necrosis.

Design: This confirmatory video of ovarian reperfusion uses footage from the laparoscopic treatment and ICG application in a young patient with adnexal torsion and apparent necrosis.

Setting: Academic, multisite medical center. Read More

ANZ J Surg 2022 Jun 4. Epub 2022 Jun 4.

Department of Otolaryngology, Head and Neck Surgery, Gosford Hospital-Central Coast Local Health District, NSW Health, Gosford, New South Wales, Australia.

Indian J Ophthalmol 2022 Jun;70(6):2102-2106

Mayo Clinic, Rochester, MN, USA.

Purpose: The purpose of this study was to characterize intradiploic dermoid and epidermoid orbital cysts to determine any differences in clinical, radiographic, or surgical features.

Methods: A retrospective review was performed of patients presenting with intradiplopic dermoid or epidermoid cysts. Additionally, a complete review of the literature was performed to identify cases of intradiplopic orbital dermoid and epidermoid cysts. Read More

J Med Case Rep 2022 Jun 1;16(1):215. Epub 2022 Jun 1.

Department of Radiology, College of Medicine, King Fahd Hospital of the University, Imam Abdulrahman Bin Faisal University, Post Box No. 1982, Dammam, 31441, Saudi Arabia.

Background: Mature teratoma is the most common germ cell tumor as it represents 95% of germ cell tumors. Although common in children and young adults, ovarian teratoma can occur at any age. Mature teratomas are composed of mature tissues representing elements derived from more than one embryonic germ layer (ectoderm, mesoderm, and endoderm), with ectodermal derivatives being the usual predominant component; however, the finding of a well-differentiated cerebellum is extremely rare. Read More

N Am Spine Soc J 2022 Jun 17;10:100124. Epub 2022 May 17.

Ascension Health St Vincent Hospital, Department of Neurosurgery, Jacksonville FL, USA.

Background: Intramedullary dermoid cysts within the spine are a rare benign tumor. We present this case, which has atypical presenting symptoms, in order to increase awareness of intradural dermoid cysts.

Clinical Presentation: We present here a case of a 42 year old man with a 12-month history of lumbar spinal pain as well progressive left lower extremity loss of strength, as well as numbness and paresthesia radiating into the left foot. Read More

Pathol Oncol Res 2022 10;28:1610221. Epub 2022 May 10.

Department of Nuclear Medicine, Tianjin Medical University General Hospital, Tianjin, China.

SO (Struma ovarii) is a rare form of ovarian teratoma which originates from ovarian dermoid cysts. Due to the rarity of this disease, relevant studies might not be sufficiently documented, especially cases with hyperthyroidism and multiple metastases. A 40-year-old female patient was admitted to our hospital due to management of early pregnancy along with a recurrent abdominal and pelvic mass. Read More

J Surg Case Rep 2022 May 24;2022(5):rjac187. Epub 2022 May 24.

Department of Plastic Surgery, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan.

A Japanese boy, presented with epibulbar dermoid and ipsilateral preauricular appendages, had a pit on his cheek of the same side. An atrial septal defect and vertebral fusions were also identified. He was diagnosed with a mild type of oculo-auriculo-vertebral spectrum (OAVS). Read More

Neuropathology 2022 May 25. Epub 2022 May 25.

Department of Neurosurgery, Faculty of Medicine, Academic Assembly, University of Toyama, Toyama, Japan.

Among intracranial cystic lesions, dermoid cysts and epidermoid cysts are relatively common benign tumors. In a small number of these tumors, it is known that squamous cell carcinomas arise in the lining epithelium of the cysts. Among tumors derived from the appendage, only one case of hidradenoma within a dermoid cyst and no cases of sebaceous tumor have been reported previously. Read More

Vestn Otorinolaringol 2022 ;87(2):67-69

Morozovskaya Pediatric Municipal Clinical Hospital, Moscow, Russia.

The article presents a casuistic clinical observation of the treatment of a child aged 1 year 10 months with a dermoid cyst of the middle ear. The diagnosis was established on the basis of computed tomography and histological examination of the mass. Surgical treatment was performed in the volume of a separate attic-anthromastoidotomy with removal of the formation and one-stage type III tympanoplasty. Read More

Saudi J Ophthalmol 2021 Jul-Sep;35(3):273-275. Epub 2021 Nov 17.

Department of Ophthalmology, College of Medicine, King Saud University, Riyadh, Saudi Arabia.

Ocular choristomas are rare lesions that have been reported at the conjunctiva, sclera, orbit, or intraocularly with significant potential for visual disturbance. The complex type of choristomas shows a mixture of different cartilaginous, glandular, and muscular tissue in addition to fat. We present a patient with an associated eyelid coloboma and complex choristoma. Read More

Am J Med Sci 2022 May 17. Epub 2022 May 17.

Department of Radiology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China.. Electronic address:

Orbit 2022 Jun;41(3):341-345

Department of Ophthalmology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA.

Purpose: To report the clinical characteristics and intraoperative findings of periorbital and orbital dermoid cysts and their relationship to location and rupture.

Methods: Retrospective review of 270 cases with orbital or periorbital dermoid cysts that presented over a period of 11 years. Patients were included if diagnosis of dermoid cyst was made by histopathologic analysis. Read More

J Paediatr Child Health 2022 May 4. Epub 2022 May 4.

Department of Paediatric Surgery, Wellington Hospital, Wellington, New Zealand.

Aim: To investigate the frequency and modality of pre-operative imaging in children with an external angular dermoid cyst and whether this influenced subsequent management.

Methods: A retrospective study was undertaken to assess the presentation, investigation, treatment and outcomes in children aged less than 16 years with an external angular dermoid cyst. All children who underwent external angular dermoid cyst excision between January 2008 and April 2021 at a regional children's hospital were analysed. Read More

Acta Med Okayama 2022 Apr;76(2):217-223

Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences.

A 3-year-old boy had difficulty sitting up and walking for several months. Magnetic resonance imaging (MRI) revealed an intradural tumor at the L3-4 level. The tumor was successfully resected by unilateral hemilaminectomy and diagnosed as dermoid cyst. Read More

Ophthalmic Plast Reconstr Surg 2022 Apr 25. Epub 2022 Apr 25.

Govindram Seksaria Institute of Dacryology, L.V. Prasad Eye Institute, Hyderabad, India.

Iatrogenic lacrimal drainage trauma during surgery is not common. It has been reported during orbital surgeries, medial maxillectomies, post-trauma repairs, excision of adherent lesions in the vicinity, and facial reconstructive procedures. The present case reports a focal loss of the lacrimal sac wall during the excision of an intricate dermoid cyst. Read More

Radiol Case Rep 2022 Jun 12;17(6):2071-2077. Epub 2022 Apr 12.

Pediatrics Department, Hôpital Libanais Geitaoui, 1100 Beyrouth, Lebanon.

A 5-year-old girl who presented with two episodes of meningitis, had a patchy red area and a small skin dimple in the midline of the occiput on physical examination. Imaging revealed a well-demarcated oval intradural lesion of the posterior fossa with restricted diffusion and peripheral enhancement, raising the possibility of an abscess. The 3D volume rendering of CT images of the inner surface of bone showed chronic bone remodeling and a tiny bone defect of the outer table. Read More

J Korean Neurosurg Soc 2022 May 25;65(3):430-438. Epub 2022 Apr 25.

Department of Neurosurgery, The First Medical Centre, Chinese PLA General Hospital, Beijing, China.

Objective: Dermoid cysts are uncommon in spinal cord tumors, and the phenomenon of their spontaneous rupture into the syrinx cavity is quite rare. We aimed to analyze the imaging characteristics and etiologies, and propose some surgical strategies, for this uncommon phenomenon.

Methods: We retrospectively reviewed 14 cases with spinal dermoid cysts that ruptured into the cervical and thoracic syrinx cavity. Read More

Am J Case Rep 2022 Apr 23;23:e935115. Epub 2022 Apr 23.

Department of Diagnostic Radiology, University of Puerto Rico Medical Sciences Campus, San Juan, Puerto Rico.

BACKGROUND Dermoid cysts are rare benign intracranial tumors that usually present classic computed tomography (CT) and magnetic resonance imaging (MRI) characteristics, allowing for relatively simple diagnostic confirmation. Atypical imaging features can occur due to their diverse ectodermal-derived content, which can result in a diagnostic dilemma. Making an accurate diagnosis is essential for adequate management. Read More

Tomography 2022 04 14;8(2):1141-1147. Epub 2022 Apr 14.

Department of Neuroradiology, S. Andrea Hospital, University Sapienza, 5, 00185 Rome, Italy.

Asterion is an uncommon site for lesions, especially dermoid cysts. We report a case series of three asterional intracranial dermoid cysts, which, to the best of our knowledge, have never been described before. Patients presented with non-specific symptoms and underwent surgical excision of the lesions. Read More

Graefes Arch Clin Exp Ophthalmol 2022 Apr 21. Epub 2022 Apr 21.

Department of Ophthalmology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark.

Purpose: To investigate the epidemiology and clinical characteristics of infants presenting with conjunctival, palpebral, or orbital congenital choristomas (dermolipomas, epidermoids, and dermoid cysts) and children undergoing surgery for congenital choristomas in the ocular adnexa.

Methods: We reviewed the medical files of congenital choristomas in children seen in The Capital Region of Denmark during a 5-year period (2014-2018). Children (< 18 years) were divided into two groups: those referred < 1 year of age (Group I) and those undergoing surgery to remove the lesion (Group II). Read More

Indian J Pathol Microbiol 2022 Apr-Jun;65(2):369-373

Department of Pathology, Anyang Tumor Hospital, The Fourth Affiliated Hospital of Henan University of Science and Technology, Anyang, Henan, China.

Purpose: To investigate the clinicopathological features of mature teratoma with malignant transformation.

Methods: Retrospectively analysis of 1179 cases mature teratoma was done from August 1999 to December 2019 in Institution. 14 cases of mature teratoma with malignant transformation were discussed mainly for the pathological characteristics and clinical manifestations. Read More

Beijing Da Xue Xue Bao Yi Xue Ban 2022 Apr;54(2):315-319

Department of Neurosurgery, Peking University Third Hospital, Beijing 100191, China.

Objective: To explore the feasibility and key technology of microscopic resection of lumbar intraspinal tumor through microchannel keyhole approach.

Methods: The clinical features, imaging characteristics and surgical methods of 54 cases of lumbar intraspinal tumor which were microscopically operated by microchannel from February 2017 to September 2019 were reviewed and analyzed. There were 8 cases of extradural tumor, 3 cases of extra-and intradural tumor and 43 cases of subdural extramedullary tumor (including 3 cases of ventral spinal tumor). Read More

Kardiochir Torakochirurgia Pol 2022 Mar 24;19(1):44-46. Epub 2022 Mar 24.

Lokmanya Tilak Municipal Medical College and General Hospital, Sion, Mumbai, India.

Int J Mol Sci 2022 Apr 6;23(7). Epub 2022 Apr 6.

Center for Medical Genetics Ghent, Ghent University Hospital, 9000 Ghent, Belgium.

Mosaic RASopathies are a molecularly heterogeneous group of (neuro)cutaneous syndromes with high phenotypical variability. Postzygotic variants in have been described in oculoectodermal syndrome (OES), encephalocraniocutaneous lipomatosis (ECCL) and epidermal nevus syndrome (ENS). This study confirms the continuum of mosaic neurocutaneous RASopathies showing codon 146 variants in an individual with OES and, for the first time, in an individual with (isolated) epidermal nevus. Read More

BMJ Case Rep 2022 04 6;15(4). Epub 2022 Apr 6.

Radiology, Centro Hospitalar Universitário do Porto EPE, Porto, Portugal

Cureus 2022 Mar 2;14(3):e22781. Epub 2022 Mar 2.

Department of Otolaryngology - Head and Neck Surgery, Albany Medical Center, Albany, USA.

Dermoid cysts are benign masses of embryologic origin that can present in various anatomical locations throughout the human body. This article presents the case of a 30-year-old male who presented to our emergency department with complaints of tongue swelling accompanied by worsening dysphagia and dysphonia in the context of a chronic, midline mass in the floor of the mouth. Computed tomography (CT) imaging and surgical pathology of the mass ultimately revealed findings consistent with a dermoid cyst causing inferior displacement of the mylohyoid muscle. Read More

J Coll Physicians Surg Pak 2022 Apr;32(4):525-527

Department of Radiology, Haseki Research and Training Hospital, Istanbul, Turkey.

Dermoid cysts (DCs) are benign, congenital tumors that comprise 0.04-0.6% of all intracranial tumors. Read More