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Lymphangiomas are uncommon congenital lesions of the lymphatic system, and most of them are detected by the second year of life. Although head and neck region is the most common location, laryngeal involvement isextremely rare, and the literature is largely limited to few case reports.

Case Report:

A 51-year-old male patient was admitted to the hospital with clinical history of hoarseness. Performed direct laryngoscopy revealed a pedunculated cystic mass located in the right ventricle of the larynx. The mass was totally excised, and the case was reported as cavernous lymphangioma. 

Isolated laryngeal lymphangioma is extremely rare in adults. The other benign lesions or inflammatory processes in this region can mimic laryngeal lymphangioma. Therefore, this entity should be kept in mind in differential diagnosis especially in adults, to avoid overtreatment.

Osteomas are benign bone tumors. They generally lead to a local thickness on the frontal bone in calvarium. When they occur on the forehead, they often cause a cosmetic disorder without any neurological symptoms. The significant problem is the repair method of the cranium defect.
The rib of a 34-year-old female was split and used for a small cranium defect of 3 × 3.5 cm. The preferred method and the obtained results were presented under the guidance of the literature.
Along with the technological advancement, different materials are employed according to the size of the cranium defect and the age of the case. The application of split costa cranioplasty for the small cranium defects in the region of patient’s face is the method with the least possibility of complications, and its cosmetic and functional results are quite promising.

Round ligament leiomyoma of uterus is rare. It can be presented as inguinal swelling mimicking the inguinal hernia or lymph node. Surgical excision is its curative treatment. Definitive diagnosis is made by histopathological examination. A 32 year old pregnant patient having round ligament leiomyoma as diagnosed histopathologically in Recep Tayyip Erdogan University Hospital in 2014 was presented here as the sixth case in literature.

Choristoma is defined as the presence of cells in abnormal locations due to defects during embryological development. The word choristoma implies a neoplasm; whereas heterotopia refers to a displaced tissue without necessarily being a swelling or a neoplasm. Literature contains reports of cartilaginous choristoma in the cervix, endometrium, breast tissue, and oral region. Case Reports: Three cases of cartilaginous choristoma, which were accidentally found during microscopic examination of excised tonsil tissues, are presented. Choristomas may cause difficulty in the differential diagnosis of true neoplasms, since they are rare and may grow. Therefore pathologists should be considered in the differential diagnosis of cartilaginous lesions, because cartilaginous choristomas of the tonsil are a rare entity.

Granular cell tumors (GCTs) are rare and mostly benign soft tissue tumors. Though they have been reported in all parts of body, they are generally located in the head and neck region, especially on the tongue. Some malign forms exist, but these have been rarely reported. Granular cell tumors have a neural origin and, in immunohistochemical evaluations, they express S-100 and neuron specific enolase (NSE). The treatment of these tumors is bulky surgical excision. Case Report: In this case, a cauliflower shaped lesion with a 1 cm diameter was excised from the midline tongue of a 65 year old woman. The histopathological evaluation indicated that it was squamous cell carcinoma (SCC) covering GCT. Herein, the coexistence of GCT and SCC we describe on the same region of the tongue, in accordance with literature review, since this is a very rare condition. Pseudoepitheliomatous hyperplasia may accompany GCTs on the tongue and this condition may mimic well-differentiated SCC. For this reason, with the help of Ki-67 and p63 expression, in addition to immunohistochemical markers, well-differentiated SCC should be differentiated from pseudoepitheliomatous hyperplasia through careful investigation.

Ovary juvenile granulosa cell tumors (JGCT) are rare sex cord-stromal tumors that are most commonly encountered in prepubertal girls. These tumors can be of the adult type (95%) and juvenile type (5%). The main causes of complaint are abdominal distention and abdominal pain. Definitive diagnosis is confirmed by histopathologal and immunohistochemical examinations. A 10-year old girl presented with massive abdominal distention, acute abdomen findings and ascites. Abdominopelvic magnetic resonance imaging showed masses with multiple cysts and solid components in the left ovary. Tumor markers were normal, but serum estradiol level was elevated. The patient underwent mass resection with left salpingo-oophorectomy and total omentectomy. Final histopathological diagnosis was JGCT. We herein reporte an extremely rare case of advanced stage JGCT causing massive ascites and acute abdomen.