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

The 447 cases of skin tumors were studied at the departments of dermatology and surgical pathology, National Medical Center in Seoul during the period of 18 years and 8 months from January, 1959 to August, 1977. The results were as follows: 1) the total number of specimens surveyed in the study was 447, among which benign tumors accoungted for 234 cases and malignant tumors for 213. 2) Male to female ratio for benign tumors was 1.2:1 and for malignant tumors 2.2:1. 3) Among the 234 cases of benign tumors, 67 cases were epidermal cyst. 53 cases of hemangioma and 34 cases of pigmented neni. 4) Among the 2 cases of malignant melanoma. 5) The peak age incidence for benign tumors were below the 2nd decade, The peak ago incidence for malignant tumors were 50th decade. 6) the sites of predilection of the epidermal cysts were trunk, face and neck. The sites of predilection of the hemangiomas and pigmented nevi were face. 7) The sites of peredilection of the squamaous cell carcinomas were penis(27.1%), lower extremities(25.7%) and face(21.5%) The sites of predilection of the basal cell carcinomas were face(83.3%) 8) The ratio of squamous cell carcinoma ws basal cell careinoma was 4:1. 9) The accuracy of clinical dianosis were 42.7% for benign tumors and 79.3% for malignant tumors.
Carcinoma, Basal Cell ; Carcinoma, Squamous Cell ; Dermatology ; Epidermal Cyst ; Female ; Hemangioma ; Humans ; Incidence ; Male ; Melanoma ; Neck ; Nevus, Pigmented ; Pathology, Surgical ; Seoul ; Skin*

PURPOSE: We assessed the feasibility of testis-sparing surgery in children with testicular tumors. MATERIALS AND METHODS: Twenty-five pediatric patients who had a testicular tumor were enrolled for retrospective analysis. Testis-sparing surgery was planned in the cases with clinical features that preoperatively suggested the tumors to be benign, which was later determined intraoperatively by frozen section examination. The preoperative-fetoprotein (AFP) and transscrotal ultrasound (US) were evaluated along with the final pathology. We reviewed the immediate and late surgical complications, as well as the tumor recurrence after surgery. RESULTS: Teratoma, epidermoid cyst, yolk sac tumor, and Leydig cell tumor accounted for finding in 40%, 32%, 24%, and 4% of the patients, respectively. Based on the preoperative US, 18 patients had benign-looking tumors. According to the age-matched AFP references, 17 patients showed normal ranges preoperatively. Out of 14 patients, whose US and AFP level suggested the tumors to be benign, 10 (71.4%) were eligible for testis- sparing surgery on retrospective review. Testis-sparing surgery was performed in 5 patients, who showed the same pathology in frozen sections (3 epidermoid cysts, 2 teratomas). None of the 5 patients exhibited perioperative complications, and no recurrence or atrophy was observed at a mean follow-up of 39.8 months. CONCLUSIONS: Out of 14 patients, whose US and AFP analyses were available, 10 (71.4%) were eligible for testis-sparing surgery. Testis-sparing surgery was done in five out of the 10 patients without any complication or recurrence. Testis-sparing surgery is a feasible option in children with testicular tumors if the AFP level is within a normal range and the US suggests benign characteristics.
Atrophy ; Child* ; Endodermal Sinus Tumor ; Epidermal Cyst ; Follow-Up Studies ; Frozen Sections ; Humans ; Leydig Cell Tumor ; Pathology ; Recurrence ; Reference Values ; Retrospective Studies ; Teratoma ; Testicular Neoplasms* ; Testis ; Ultrasonography