Epidermoid cyst

Mucoepidermoid carcinoma is a type of salivary gland cancer that can develop in the context of a parotid gland cyst. This type of tumor is composed of mucous, epidermoid, and intercalated cells, and usually presents as a slow-growing and painless mass. A parotid gland cyst is a condition in which a fluid-filled sac forms in the parotid gland. The tumor can be masked as it develops within the parotid cyst. A 45-year-old female patient presented with a suspect of benign neoplasm of the major salivary gland. She underwent partial right parotidectomy, which upon pathological analysis confirmed the diagnosis of mucoepidermoid microcarcinoma associated with parotid gland cysts...

BACKGROUND: Intraparenchymal hemorrhage at the operative site is one of the major complications of brain surgery. It is unusual to occur at a site remote from the operative site, but when it happens, it may cause significant morbidity and mortality. CASE DESCRIPTION: We report the case of a 27-year-old male who presented with complaints of paresthesias over the left side of his face and decreased hearing from the left ear for two years. His radiology was suggestive of a large left cerebellopontine angle epidermoid cyst...

Dermoid cysts and epidermoid cysts in the floor of the mouth are rare in the pediatric age group. In this case report, we have discussed the presentation, management, and literature review of a 6-month-old female child presenting with both dermoid and epidermoid cysts in the floor of the mouth with an orocutaneous fistula.

Mucoepidermoid carcinoma (MEC) is the most common malignant salivary gland tumor. Varying sized cysts and sheets composed of three cell types (epidermoid, intermediate, and mucous cells) with varying degrees of atypia form the characteristic histological appearance of MEC. MEC frequently contains a wide variety of modified tumor cells and can be entirely cystic or completely solid. Under these circumstances, MEC requires critical differentiation from many mimickers, ranging from simple cysts and benign tumors to high-grade carcinomas...

Retroperitoneal cysts (RPCs) are rare types of cyst in the retroperitoneal space that are frequently misdiagnosed as gynecological tumors. This case report details, an epidermoid RPC, identified through 2D ultrasound, with attempts to visualize its rendered images using 3D ultrasound. A 39-year-old female patient was admitted to the hospital following the detection of a pelvic mass during a routine physical examination. Initially, the lesion was suspected to be an ovarian tumor, but subsequent ultrasound investigations suggested an epidermoid RPC...

Testicular epidermoid cysts, accounting for 1%-2% of all testicular masses, present a diagnostic challenge often identified post-orchiectomy. Conservative surgery is recommended, emphasizing the need for accurate preoperative diagnosis. A 28-year-old patient with acute left scrotal pain, initially suggestive of testicular torsion, underwent intraoperative exploration revealing extra-vaginal torsion with an incidentally discovered 2-cm intra-testicular mass. Due to suspected malignancy, a total orchiectomy was performed...

OBJECTIVE: Tumors may be responsible for up to 5% of trigeminal neuralgia (TN) cases. Predictors of long-term pain relief after surgical resection of various cerebellopontine angle (CPA) tumor types are not well understood. Previous studies found that size and extent of resection predict long-term pain status, although resection of tumor involving the trigeminal ganglion (TG) may be associated with high morbidity. This study evaluated predictors of TN pain freedom after resection of a non-acoustic CPA tumor, with avoidance of any portion involving the TG...

OBJECTIVE: The anterior transpetrosal approach using a microscope to provide wider access to the petrous apex region has been described for radical resection of lesions of the middle and posterior skull base. The microscopic anterior transpetrosal approach (mATPA) requires a wide craniotomy and meticulous epidural procedures to minimize temporal lobe retraction. Recently, the clinical application of transcranial endoscopic keyhole approaches for minimally invasive surgery has been steadily expanding...

INTRODUCTION AND IMPORTANCE: This case report describes a rare occurrence of an epidermal inclusion cyst (EIC) being found in the thyroid gland and highlights the importance of considering uncommon entities like EIC in the differential diagnosis of thyroid lesions. CASE PRESENTATION: A 68-year-old male presented with a large, painless swelling in the anterior neck, causing dysphagia and dysphonia. Imaging and cytology confirmed a benign EIC involving the left lobe of the thyroid, which was successfully removed via hemithyroidectomy, resulting in resolution of symptoms...

BACKGROUND: Pediatric intraspinal epidermoid cysts are rare with potential to cause life-altering outcomes if not addressed. Reports to date describe symptomatic presentations including loss of bladder or bowel function and motor and sensory losses. This case report identifies the diagnostic challenge of an asymptomatic intraspinal epidermoid cyst in the cauda equina region presenting in a 7-year-old male with juvenile idiopathic arthritis (JIA). DIAGNOSIS: An advanced physiotherapist practitioner assessed and diagnosed a previously healthy 7-year-old-male of South Asian descent with JIA based on persistent knee joint effusions...

INTRODUCTION AND IMPORTANCE: Epidermoid cysts also known as epidermal inclusion cysts are the most common type of cutaneous cysts. These are derived from ectoderm with a lining of stratified squamous epithelium. Penile epidermoid cysts however are very rare. We report a case of Fifteen years old male with complain of slow growing mass at ventral aspect of shaft of penis along with urethrocutaneous fistula following hypospadias surgery. Surgical excision was done of the cyst. Histopathology of the sample revealed an epidermoid cyst...

Objective: To explore the selection, efficacy and application of indications for parapharyngeal space tumor resection assisted by plasma and HD endoscopic system through oral approach. Methods: The clinical data of 23 patients with parapharyngeal space tumor resection assisted by plasma and HD endoscopic system were retrospectively analyzed in Department of Otolaryngology Head and Neck Surgery, the First Affiliated Hospital of Bengbu Medical University from January 2013 to June 2023. All cases were examined by high-resolution CT and MRI before operation, and some cases were examined by CTA or DSA...

Testicular epidermoid cysts have characteristic findings. Testicular tumor markers are negative in patients with epidermoid cysts. Clear margins and sole and small testicular tumors (20 mm or less) suggest the possibility of epidermoid cyst. Testicular-sparing surgery with intraoperative frozen section examination should be performed when suspecting epidermoid cysts. Testicular epidermoid cysts are rare tumors that account for 1% of all testicular tumors and are often clinically misdiagnosed as malignant lesions...

Objective: To investigate the clinical characteristics and voice outcomes after laryngeal microsurgery for vocal fold epidermoid cysts coexisting with sulcus vocalis. Methods: The clinical data of 115 vocal fold epidermoid cysts coexisting with sulcus vocalis patients in Shandong provincial ENT hospital, were retrospectively analyzed, including 49 males and 66 females, aged 17-70 years old, and the duration of hoarseness ranged from 6 months to 30 years. All patients underwent surgery through suspension laryngoscope and microscope under general anestgesia...

An epidermoid cyst is a benign tumor in many locations. The symptoms of an epidermoid cyst depend on its location. The brain or spine MRI can confirm the lesion. Removing total decompression is the first choice in treatment with a symptomatic cyst.

Malignant sweat gland tumors are very rare. Hidradenocarcinoma is an uncommon malignancy arising from the intradermal ductal epithelium of eccrine sweat glands, usually in the sun-exposed parts of the body. It usually arises de novo but may develop from a benign hidradenoma. The diagnosis of hidradenocarcinoma is clinically challenging as it presents with varied consistency and clinically mimics other skin lesions such as chronic sebaceous cysts or epidermoid cysts. Hidradenocarcinoma is a highly aggressive tumor with a tendency for regional and distant spread...

Mucoepidermoid carcinoma (MEC) is a common malignancy arising in the parotid gland. The diagnosis of MEC is typically based on its morphological features alone, characteristically containing mucocytes, intermediate cells and epidermoid cells. However, when cystic degeneration is diffuse, it is challenging to distinguish MEC from other benign cystic tumors. This is a case report of a 58-year-old Caucasian man who presented with a parotid mass. H&E sections of the mass reveal multiloculated cysts lined by bland-looking epithelium with only rare papillary architectures...

Intracranial epidermoid cysts, also referred to as intracranial primary cholesteatomas, are uncommon, benign tumors characterized by slow, linear growth patterns akin to normal epidermal tissue. They typically become symptomatic around age 43, with a slight female predominance, and are most frequently located in the cerebellopontine angle. This summary presents the case of a 62-year-old woman suffering from paroxysmal excruciating pain of the right hemiface, indicative of trigeminal neuralgia, linked to an intracranial epidermoid cyst in the cerebellopontine angle...

Dentigerous cysts are the second most common developmental odontogenic cysts that develop around the crown of unerrupted teeth with the maxillary canine region being one of the common sites of occurrence. The cystic lining of this lesion has been shown to develop into ameloblastoma, Muco epidermoid carcinoma, and squamous cell carcinomas. However, the development of cholesterol granuloma (CG) in the cystic lining of a dentigerous cyst is extremely rare. CG is a histological observation distinguished by the presence of a conglomeration of connective tissue and granulation tissue...

Cystic lesions in the preauricular may have various histological origins, ranging from the skin to the acinar and non-acinar lesions from the parotid. Though advanced radiological investigations provide a good insight into the diagnosis of these lesions, diagnostic dilemmas may still prevail and warrant good clinical and surgical acumen to provide optimal treatment. The aim of the current report is to describe a case of an epidermoid cyst that mimicked a parotid cyst and discuss in detail the probable differential diagnosis and their management strategies...