Dermoid cysts in floor of mouth are relatively rare. The term dermoid cyst is used to describe 3 cysts that are closely related histologically: dermoid cyst, epidermoid cyst, and teratoma. These are frequently mistaken as other pathology because of their location and rarity. Complete surgical excision is the treatment of choice and the recurrence is extremely rare. We report each case of epidermoid cyst and dermoid cyst of the floor of the mouth with a brief review of literatures.
Dermoid Cyst* ; Epidermal Cyst ; Mouth Floor* ; Mouth* ; Pathology ; Recurrence ; Teratoma

Epidermnoid cysts are henign, cutaneous cysts which commonly occur on face, neck and trunk. Retroauricular epidermoid cyst is rare reported which should be differentiated from auricle pseudocyst, lipoma, steatocystoma and fibroma. The hitopathological examination is a gold standard of diagnosis. Surgery of complete excision is the first choice of treatment methods.
Ear, External ; pathology ; Epidermal Cyst ; diagnosis ; pathology ; Humans

Adult ; Brain Neoplasms ; diagnosis ; pathology ; Carcinoma, Squamous Cell ; diagnosis ; pathology ; Epidermal Cyst ; pathology ; Humans ; Male

Endoscopy ; methods ; Epidermal Cyst ; surgery ; Female ; Humans ; Middle Aged ; Skull Base ; pathology

A 54-year-old woman presented with a huge palpable mass on left upper quadrant of the abdomen. After preoperative work-up, a cystic disease of pancreatic tail or accessory spleen was initially suspected. We performed exploratory laparotomy and resected both the spleen and a 15 x 11 cm-sized huge cystic mass containing a part of solid component which extended continuously to the pancreatic tail. The solid component, comprising the upper portion of the resected cyst, was reddish brown and granular like as normal splenic tissue. The inner surface of the cyst was smooth and was filled with yellowish white material. Histologic examination showed an epidermoid cyst originating in the accessory spleen of the pancreatic tail lacking hair or skin appendages.
Case Report ; Epidermal Cyst/surgery ; Epidermal Cyst/pathology* ; Female ; Human ; Magnetic Resonance Imaging ; Middle Age ; Pancreas/surgery ; Pancreas/pathology* ; Spleen/surgery ; Spleen/pathology* ; Splenic Neoplasms/surgery ; Splenic Neoplasms/pathology*

Epidermoid tumor of the cavernous sinus is rare. The aim of this case report is to discuss the role of neuroendoscopes in the removal of such lesions. A 21-year-old man presented with 6-year history of progressive headache, diplopia, and visual disturbance. Work-up revealed an epidermoid tumor located in the right cavernous sinus. An extradural transcavernous approach was utilized via a traditional frontotemporal craniotomy with endoscopic assistance. The postoperative course was uneventful with immediate improvement of the patient's headache. Postoperative magnetic resonance imaging demonstrated complete removal of the tumor. There were no signs of recurrence during a 2-year follow-up period. The endoscope is a useful tool for removing epidermoid tumors from the cavernous sinus and enhances visualization of areas that would otherwise be difficult to visualize with microscopes alone. Endoscopes also help minimize the retraction of neurovascular structures.
Adult ; Cavernous Sinus/*pathology/*surgery ; Endoscopy/*methods ; Epidermal Cyst/*pathology/*surgery ; Humans ; Male ; Microsurgery/*methods ; Young Adult

An epidermoid cyst arising from intrapancreatic accessory spleen (ECIPAS) is a rare disease. Most patients with an ECIPAS are detected incidentally and could be misdiagnosed as a pancreatic cystic neoplasm such as mucinous cystic neoplasm (MCN) or intraductal p ancreatic mucinous neoplasm (IPMN). We described an ECIPAS with high cystic fluid carcinoembryonic antigen (CEA), which was misdiagnosed as a MCN of pancreas. Fifty one-year-old female was presented with a 2 cm sized non-enhancing pancreas cystic mass on the outside CT scan. Endoscpic ultrasonography (EUS) guided aspiration was performed. It showed a 2.3 x 1.9 cm unilocular cyst nearby 1.6 x 1.1 cm homogenous hypoechoic mass in pancreas tail, and cystic fluid CEA was 1564.18 ng/mL. On the basis of EUS results with elevated fluid CEA level, the presumptive diagnosis is likely to MCN of pancreas, and she underwent a laparoscopic distal pancreatectomy. The final pathology was the epidermal cyst in the intrapancreatic accessory spleen.
Carcinoembryonic Antigen ; Diagnosis ; Epidermal Cyst* ; Female ; Humans ; Mucins* ; Pancreas* ; Pancreatectomy ; Pancreatic Cyst ; Pathology ; Rare Diseases ; Spleen* ; Tomography, X-Ray Computed ; Ultrasonography

A cutaneous sinus tract of odontogenic origin occurs when purulent by-products of dental pulp necrosis spread along the path of least resistance from the root apex to the skin on the face. Patients presenting with this condition usually visit a dermatologist first, as the lesion can mimic various dermatologic pathologies, ranging from an epidermal cyst to basal cell carcinoma. The location of the sinus in the head and neck region should lead the dermatologist to seek a dental origin in order to avoid misdiagnosis. The lesion may persist for long periods before a correct diagnosis is made and the odontogenic source is treated appropriately. Herein, we report a case of a cutaneous sinus tract of odontogenic origin.
Carcinoma, Basal Cell ; Dental Fistula ; Dental Pulp Necrosis ; Diagnosis ; Diagnostic Errors ; Epidermal Cyst ; Head ; Humans ; Neck ; Pathology ; Skin

PURPOSE: To report the relative frequency and clinical characteristics of patients with benign eyelid tumors. METHODS: A retrospective study of 192 consecutive patients admitted to Korea University Ansan Hospital with benign eyelid tumor between January 2009 and December 2014 was undertaken, and clinical records including age, sex, involved site, and pathology of tumors were reviewed retrospectively. All eyelid tumors were confirmed histopathologically. RESULTS: The sexual distribution revealed 87 males and 105 females with benign eyelid tumors. The mean age at diagnosis was 42.6 +/- 19.2 years. Molluscum contagiosum (5.5 +/- 3.5 years) and pilomatrixoma (14.0 +/- 15.6 years) were generally found in younger individuals, while seborrheic keratosis (60.2 +/- 15.8 years) and squamous cell papilloma (50.5 +/- 13.4 years) occurred predominantly in elderly patients. Tumors were most common on the upper lid (63.0%). The four most frequent subtypes were melanocytic nevus (37.5%), epidermal cyst (8.3%), squamous cell papilloma (5.7%), and seborrheic keratosis (5.2%). CONCLUSIONS: The most common histopathological diagnosis of benign eyelid tumors was melanocytic nevus. The results of this study provide epidemiological information that will be useful for diagnosis and therapy of such tumors.
Aged ; Diagnosis ; Epidermal Cyst ; Eyelids* ; Female ; Gyeonggi-do ; Humans ; Keratosis, Seborrheic ; Korea ; Male ; Molluscum Contagiosum ; Nevus, Pigmented ; Papilloma ; Pathology ; Pilomatrixoma ; Retrospective Studies

A study was made on 72 cases of skin tumor and tumorous conditions of the eyelid and periorbita,l areas which were obtained as surgical pathology specimens during the period. of 5 years and 8 months from January, 1977 to August, 1982, at Department of Dermatology, Chosun University Hospital. The results were as follows. Of the 72 cases of skin tumor and tumorous conditions, 65 cases (90. 5%) were benign, and 7 cases (9. 7%) were malignant. The ratio of male vs. female was 1: 3. 6 for benign tumorous conditions and 6: 1 for malignant tumors. The peak age incidence for benign tumorous conditions were at the 3rd decade (R6. 9%). The peak age incidence for malignant tumors were at the R rd decade (28. 6%) and above the 7 the decade (28. 6%). The benign tumorous conditions were 21 cases (82. S%) of syringoma, 21 cases (82. 3%) of pigmented nevus, 6 cases (9. 2%) of epidermal cyst and 5 cases (7. 7%) of xanthelasma. The malignant tumors were R cases (42. 9%) of squamous cell carcinoma, 2 cases (28. 6,.) of basal cell epithelioma and 2 cases (28. 6%) of malignant melanoma. The predilection sites of the benign tumorous conditions were lower eyelid and inferior periorhital area (59. 1%). The predilection sites of the malignant t:umors were lower eyelid and inferior periorbital area (42. 9%).
Carcinoma, Basal Cell ; Carcinoma, Squamous Cell ; Dermatology ; Epidermal Cyst ; Eyelids* ; Female ; Humans ; Incidence ; Male ; Melanoma ; Nevus, Pigmented ; Pathology, Surgical ; Skin* ; Syringoma