Epidermoid and dermoid cysts are benign, usually slow-growing lesions classified as ectodermal inclusion cysts. These cysts form when epithelial remnants become trapped during the closure of the first and second branchial arch; however, a few cases are related to trauma or are iatrogenic. Diagnosis is made based on the cyst development history and imaging such as ultrasound. Surgical excision is the treatment of choice to avoid complications. We report a case report of a dermoid cyst in the pre-sternal region in a 17-year-old male patient.

BACKGROUND: Cavernous malformations of the dura, especially of the tentorium, are exceedingly rare. In the available literature, only 10 cases have been described to date.
METHODS: The authors present the case of a 46-year-old male patient with a 1-cm infratentorial lesion suspicious for meningioma that was found on routine magnetic resonance imaging (MRI) performed for vertigo. The lesion was followed for 1.5 years with no change in signal and size. Nevertheless, the patient was concerned about the lesion and requested removal. The removal was successful and without any neurological sequelae. However, histological evaluation demonstrated a cavernous malformation. Postoperative computed tomography and MRI showed complete removal. Preoperative MRI characteristics, intraoperative images, and a video, as well as histological evaluation, are shown. The case is discussed with respect to the literature.
CONCLUSIONS: Cavernous malformations of the tentorium are extremely rare and mimic meningiomas; thus, they need to be taken into account. DOTATOC positron emission tomography may help to differentiate in these cases. Considering the cases reported in the literature, in cases of large tumors, preoperative angiography and possibly embolization may be helpful. https://thejns.org/doi/10.3171/CASE24168.

Canalicular adenoma (CA) is a rare benign tumor of the salivary glands, predominantly affecting elderly females, with a strong predilection for the upper lip. While CA commonly arises in the minor salivary glands, its occurrence in the parotid gland is exceptionally rare. In this report, we present a unique case of CA in the parotid gland, adding to the scant literature with only 8 documented instances. The patient, a 57-year-old Asian male, presented with a painless swelling in the left parotid gland that had been persisting for 8 years. Clinical examination and imaging studies identified a lobulated mass, prompting surgical intervention. The patient underwent a superficial parotidectomy, and pathological examination of the excised tissue confirmed the diagnosis of CA, with no signs of malignancy. This case illustrates the diagnostic and management challenges associated with CA, particularly given its rare presentation in the parotid gland. Accurate diagnosis is reliant on surgical biopsy, and careful surgical planning is imperative, especially considering the proximity of the facial nerve. Our case underscores the need for heightened awareness of CA\'s unique presentations, particularly within the Asian population. Given the potential for recurrence, long-term follow-up is essential. Further research is needed to elucidate the biological behavior of CA and to refine management strategies for optimal patient outcomes.

BACKGROUND: Right-side diaphragmatic hernia is a very rare cause of bowel obstruction and strangulation in adults, which is usually a congenital disorder.
METHODS: A- 55-year-old male presented to the emergency department of our hospital complaining of abdominal pain, nausea, vomiting, abdominal distension, fever, and constipation for 4 days. On physical examination, the patient was fibril, toxic, tachycardic, and hypotensive. The patient had a distended abdomen with exaggerated bowel sounds, abdominal tenderness, guarding, and rigidity mostly in the right upper quadrant. There were some degrees of tempanicity on percussion. The digital rectal examination was normal with no evidence of impacted stool.
CONCLUSIONS: Patients with a diaphragmatic hernia frequently present with manifestations of internal herniation, incarceration, obstruction, ischemia from strangulation, or perforation. The patient may present with respiratory symptoms such as dyspnea, absence of breath sounds in the thorax, or abdominal symptoms such as abdominal pain and bowel dilatation.
CONCLUSIONS: Diaphragmatic hernia, which is a rare case, should be included in the differential diagnosis of small bowel obstruction to preclude complications.

Perivascular epithelioid cell tumors (PEComas) are rare mesenchymal tumors originating from perivascular epithelioid cells. In gynecological system, the uterus is one of the most common sites affected by PEComas. Most PEComas are benign, and patients usually have a good prognosis. However, malignant uterus PEComa is rare, and better comprehensive epidemiological investigations are needed. To date, there are a few reported cases of uterus PEComa. We herein report a rare case of malignant PEComa occurred in the uterine corpus and cervix, possibly accompanied by pulmonary lymphangioleiomyomatosis (PLAM). In addition, 55 cases of malignant uterus PEComa were picked out and collected in the data base of PubMed and Medline. On the one hand, the age of onset, population distribution, clinical manifestations, metastatic sites and routes of metastasis were analysed. On the other hand, a summary of the epidemiology, pathogenesis, diagnosis, and treatments of uterus PEComa was given.

UNASSIGNED: Ipsilateral proximal, shaft, and distal femur fractures are extremely uncommon. It might be challenging and contentious to treat ipsilateral multi-level femur fractures. There are still unanswered questions regarding the order of fracture types that should be repaired first and the type of implant that should be used.
METHODS: A twenty-nine-year-old male patient was assessed at the emergency department after a motorcycle accident. The patient had a clearly deformed left lower extremity and was complaining of pain in the left thigh. Preoperative radiographs revealed ipsilateral multi-level femur fracture on the left thigh involved basicervical fracture of femur (AO/OTA 31-B3) with transverse shaft fracture of femur (AO/OTA 32-A3) and extra articular supracondylar femur fracture (AO/OTA 33-A2).
UNASSIGNED: First, we performed proximal femur nail antirotation in order to stabilize the fracture of the femur neck and reduce the incidence of nonunion and avascular necrosis of the femoral head in young adults. The next step to fix the shaft and distal femur fracture was to perform the distal femur locking plate. The EQ5D and Harris Hip Score questionnaires showed improvement after implementing these procedures.
CONCLUSIONS: Ipsilateral multi-level femur fractures have challenges and controversies in their management. In this situation, proximal femur nail antirotation and distal femur locking plates are viable options due to the condition of the injury and the higher risk of negative effects. After all fractures have been fixed, it is important to closely monitor the hip and knee joints to avoid stiffness or contracture.

Diastematomyelia is an infrequent congenital anomaly that anatomically presents with a longitudinal division of the spinal cord at the level of one or several sections. It is generally diagnosed and treated in children. We present a 25-year-old female patient who has entered the Neurosurgery clinic after a traumatic experience with severe low back pain evaluated with 7 points on the visual analog scale (VAS). Magnetic resonance imaging (MRI) of the lumbar area discovered evidence for diastematomyelia type 1 at levels L3-L5 with deformations in L4 and L5 vertebrae and mild scoliosis. Because of the lack of neurological deficiency, the patient\'s treatment was conservative and included a 10-day intake of nonsteroid anti-inflammatory drugs (NSAIDs) in combination with myorelaxant and physiotherapy. On the 15th day, the patient was evaluated with 2 points on VAS. Neurological follow-up examinations were conducted on the third and the sixth month and the patient was evaluated with VAS 1, which proves that conservative treatment is successful for diastematomyelia in adults without neurological deficiency.

Actinomycosis is a chronic suppurative infection caused by gram-positive bacteria, Actinomyces, which commonly colonize the oral cavity, urogenital tract and gastrointestinal tract. It causes opportunistic infection where the mucosal barrier is compromised and is often misdiagnosed as malignancy. We report a case of a 58-year-old female with severe abdominal pain and a palpable tender mass in the left lower quadrant. Computed tomography scan with contrast showed thickening of the transverse, descending to sigmoid colon wall and intense contrast enhancement resembling colitis with mesenteritis. At laparotomy, we found an adherent mass involving sigmoid colon with adjacent small bowel and peritoneum. We decided to perform adhesiolysis and Hartmann procedure. The culture result was negative, whereas the biopsy of sigmoid colon revealed characteristic sulfur granules of actinomycosis colony. Intravenous antibiotic combination of ceftazidime and metronidazole was administered for 14 days followed by complete resolution of symptoms. Histopathological and bacteriological examinations are keys to diagnose actinomycosis. Patients require long-term antibiotic therapy, but surgery is often required because preoperative diagnosis is difficult.
UNASSIGNED: We presented the rare case of intra-abdominal actinomycosis in IndonesiaThe case was challenging to diagnose pre-operatively based on physical examination andExploratory laparotomy revealed pseudotumor mimicking advanced stage of colon neoplasm.

Congenital nasal dermoid and sinus cysts (NDSCs) are rare congenital deformities with a prevalence rate of 0.005% to 0.0025%. Early diagnosis is usually made during the first three years of life, but in some cases, the diagnosis may be delayed. The present case study elaborates the treatment course of a 22-year-old adult with a rare congenital nasal midline dermoid cyst. The patient had no family history of the deformity, and intracranial extensions were also ruled out before surgery. Open rhinoplasty technique was used along with osteotomies during the surgical process. The cyst was removed in entirety. The total operating time was six hours, and no complications were observed during the intra-operative or post-operative period. In conclusion, the case presentation focuses on various techniques and methods that can be used during surgery that have not been practiced before to correct the deformity while achieving a good aesthetic result as well.

A 28 -year-old man presented to our hospital with a rapidly growing nodule in the left cervical and bilateral axilla with a history of loss of weight. He has been experiencing a nodule in her right cervical since two years ago and had done FNAC and diagnosed extrapulmonary tuberculosis (EPTB), on Examination at left cervical colli; mass size 9cm x 7 cm, mobile, Lymphadenopathy at pre auricular size 3cm x 3cm, lymphadenopathy supraclavicular size 1cm x 0,5 cm. bilateral lymphadenopathy Axila size 4cmx 4cmx 2xcm mobile. The other physical exam was normal. Laboratory test Hb 10,4 d/dL, WBC 14.250/ mm3, LED 78 mm/hours, D-dimer 1,81 ug/mL, Fibrinogen 452 mg/dL. HIV test non-reactive. HbsAg and HCV test negative. CT-Scan Thorax: Enlarged Anterior mediastinal Lymph node with a diameter 0f 2.9 cm, right paratracheal with a diameter of 1,2cm and 1,1 cm, and right perihilar with a diameter of 1,3 cm. and the left perihilar diameter 0,9. And hypodense lesion of the spleen measuring 2,3cm x 1,6 cm. The patient underwent a biopsy with pathology biopsy and immunohistochemistry (IHC), CD 20+. CD 3-, CD 30+ CD79a +, MUM1 +, Ki67 80-90% +, CD15-, BCL6+ and BCL 2+. For this patient, we started an R-CHOP regimen (Rituximab 375 mg/m2 (d1), Cyclophopamid 750 mg/m2 (d1), Doxorubicin 50 mg/m2 (d1), Vincristine1,2 mg/m2 (d1) and 1 Prednisone 100 mg (d1-d5). We presented the patient with PMGZL has achieved a complete response, especially with chemotherapy R-CHOP regimens.