Renal Schwannoma: case report and literature review

Schwannomas are tumors arising from the nerve sheath. Renal schwannomas are extremely rare and have nonspecific symptoms and limited radiologic features, and are often diagnosed histologically after surgical excision. We report a case of a left renal schwannoma which, after evaluation by imaging studies, was assumed to be a renal cell carcinoma arising from the left kidney. A brief discussion and literature review of the diagnosis, treatment, and prognosis is presented.     

Schwannoma of the Penis

A case of a schwannoma of the penis is reported that was treated by surgical excision and diagnosed by S-100 immunoperoxidase staining.     

胰腺良性神经鞘瘤一例报道及文献复习

原发于周围神经的神经鞘瘤近来文献报道有所增多,它可起自任何部位周围神经的神经鞘.肿瘤常见于头颈部和四肢的屈肌表面,也可见于腹膜后和后纵隔.而位于胰腺的良性神经鞘瘤罕见,国内甚少报道,其术前诊断比较困难.2005年7月笔者收治1例经手术病理证实的胰腺体部良性神经鞘瘤,现报告如下.     

胰腺良性神经鞘瘤一例报道及文献复习

原发于周围神经的神经鞘瘤近来文献报道有所增多,它可起自任何部位周围神经的神经鞘.肿瘤常见于头颈部和四肢的屈肌表面,也可见于腹膜后和后纵隔.而位于胰腺的良性神经鞘瘤罕见,国内甚少报道,其术前诊断比较困难.2005年7月笔者收治1例经手术病理证实的胰腺体部良性神经鞘瘤,现报告如下.     

胰腺良性神经鞘瘤一例报道及文献复习

原发于周围神经的神经鞘瘤近来文献报道有所增多,它可起自任何部位周围神经的神经鞘.肿瘤常见于头颈部和四肢的屈肌表面,也可见于腹膜后和后纵隔.而位于胰腺的良性神经鞘瘤罕见,国内甚少报道,其术前诊断比较困难.2005年7月笔者收治1例经手术病理证实的胰腺体部良性神经鞘瘤,现报告如下.     

胰腺良性神经鞘瘤一例报道及文献复习

原发于周围神经的神经鞘瘤近来文献报道有所增多,它可起自任何部位周围神经的神经鞘.肿瘤常见于头颈部和四肢的屈肌表面,也可见于腹膜后和后纵隔.而位于胰腺的良性神经鞘瘤罕见,国内甚少报道,其术前诊断比较困难.2005年7月笔者收治1例经手术病理证实的胰腺体部良性神经鞘瘤,现报告如下.     

胰腺良性神经鞘瘤一例报道及文献复习

原发于周围神经的神经鞘瘤近来文献报道有所增多,它可起自任何部位周围神经的神经鞘.肿瘤常见于头颈部和四肢的屈肌表面,也可见于腹膜后和后纵隔.而位于胰腺的良性神经鞘瘤罕见,国内甚少报道,其术前诊断比较困难.2005年7月笔者收治1例经手术病理证实的胰腺体部良性神经鞘瘤,现报告如下.     

胰腺良性神经鞘瘤一例报道及文献复习

原发于周围神经的神经鞘瘤近来文献报道有所增多,它可起自任何部位周围神经的神经鞘.肿瘤常见于头颈部和四肢的屈肌表面,也可见于腹膜后和后纵隔.而位于胰腺的良性神经鞘瘤罕见,国内甚少报道,其术前诊断比较困难.2005年7月笔者收治1例经手术病理证实的胰腺体部良性神经鞘瘤,现报告如下.     

胰腺良性神经鞘瘤一例报道及文献复习

原发于周围神经的神经鞘瘤近来文献报道有所增多,它可起自任何部位周围神经的神经鞘.肿瘤常见于头颈部和四肢的屈肌表面,也可见于腹膜后和后纵隔.而位于胰腺的良性神经鞘瘤罕见,国内甚少报道,其术前诊断比较困难.2005年7月笔者收治1例经手术病理证实的胰腺体部良性神经鞘瘤,现报告如下.     

胰腺良性神经鞘瘤一例报道及文献复习

原发于周围神经的神经鞘瘤近来文献报道有所增多,它可起自任何部位周围神经的神经鞘.肿瘤常见于头颈部和四肢的屈肌表面,也可见于腹膜后和后纵隔.而位于胰腺的良性神经鞘瘤罕见,国内甚少报道,其术前诊断比较困难.2005年7月笔者收治1例经手术病理证实的胰腺体部良性神经鞘瘤,现报告如下.     

Schwannoma of the appendix: A case report and review of the literature

Appendiceal neoplasms are uncommon and found in 1.6 per cent of appendicectomy specimens. Schwannomas arising from the appendix are of significant rarity, with only a few previously‐reported cases. In this study, we present the case of a 31‐year‐old man who underwent a laparoscopic appendicectomy and was found to have an appendiceal schwannoma. In the present study, we review the literature of this rare condition, which serves to highlight the potential for appendiceal neoplasia to occur in a macroscopically‐normal appendix. Furthermore, it emphasizes the potential risk of missed appendiceal neoplasia as a sequelae of nonoperative management of suspected appendicitis.     

胰腺良性神经鞘瘤一例报道及文献复习

原发于周围神经的神经鞘瘤近来文献报道有所增多,它可起自任何部位周围神经的神经鞘.肿瘤常见于头颈部和四肢的屈肌表面,也可见于腹膜后和后纵隔.而位于胰腺的良性神经鞘瘤罕见,国内甚少报道,其术前诊断比较困难.2005年7月笔者收治1例经手术病理证实的胰腺体部良性神经鞘瘤,现报告如下.     

胰腺良性神经鞘瘤一例报道及文献复习

原发于周围神经的神经鞘瘤近来文献报道有所增多,它可起自任何部位周围神经的神经鞘.肿瘤常见于头颈部和四肢的屈肌表面,也可见于腹膜后和后纵隔.而位于胰腺的良性神经鞘瘤罕见,国内甚少报道,其术前诊断比较困难.2005年7月笔者收治1例经手术病理证实的胰腺体部良性神经鞘瘤,现报告如下.     

胰腺良性神经鞘瘤一例报道及文献复习

原发于周围神经的神经鞘瘤近来文献报道有所增多,它可起自任何部位周围神经的神经鞘.肿瘤常见于头颈部和四肢的屈肌表面,也可见于腹膜后和后纵隔.而位于胰腺的良性神经鞘瘤罕见,国内甚少报道,其术前诊断比较困难.2005年7月笔者收治1例经手术病理证实的胰腺体部良性神经鞘瘤,现报告如下.     

阴茎梭形细胞血管内皮瘤(1例报告并文献复习)

目的 探讨阴茎梭形细胞血管内皮瘤的生物学行为和临床病理特征.方法 回顾分析1例阴茎梭形细胞血管内皮瘤,结合文献分析其发病情况、临床病理特征、诊断和治疗.结果 患者行阴茎多发肿物切除术,术后多次复发.免疫组化染色：CD34（＋）.结论 阴茎梭形细胞血管内皮瘤治疗主要采用手术切除,辅以免疫等综合治疗,预后良好但复发率高.     

Schwannoma of the diaphragm--a pediatric case report and review of the literature

Diaphragmatic tumors are uncommon and difficult to diagnose in the pediatric population. Schwannoma is a benign, slow-growing peripheral nerve sheath tumor that is most commonly associated with the extremities in childhood. We herein report a schwannoma of the diaphragm in a pediatric patient and review the pediatric literature.     

Splenogonadal fusion: Report of a case and review of the literature

We report a case of splenogonadal fusion masquerading as a testicular tumor and review the etiology, the pathogenesis and the management of this rare disease. A 20-year-old male patient presented with clinical and radiological findings of a left testicular mass for which he underwent a left radical inguinal orchidectomy. Histopathology of the removed testicle revealed no tumor. The gonad was fused to ectopic splenic tissue, the later forming a distinct encapsulated mass attached to the lower pole of the testicle inside the tunica vaginalis. Splenogonadal fusion, although a rare condition, may account for a non-malignant testicular mass and should be suspected in young patients with other congenital anomalies.     

Bronchial atresia: Report of a case and review of the literature

We report herein an unusual presentation of bronchial atresia in a 28-year-old woman, in whom hyperlucency of the ventral segment, distal to a right extrahilar mass found on a routine chest X-ray, was not recognized. Atresia of the medial branch of the ventral segmental bronchus (B³ _b) with mucoid impaction in the dilated bronchus was finally disclosed by a right upper lobectomy. The patient had been asymptomatic, and physical examination demonstrated no abnormal findings such as decreased breathing sounds over the affected lung. Localized hyperlucency and a mass are the characteristic radiographic features of bronchial atresia. In the present case, however, hyperlucency distal to the mass, which was retrospectively evident on a computed tomogram of the chest, was not recognized. The preoperative diagnosis was also made difficult by the fact that the atresia was located on a subsequential branch (B³ _b) of the ventral segmental bronchus of the right upper lobe. Since computed tomography and magnetic resonance imaging are able to make an accurate diagnosis of bronchial atresia possible, surgery is often not indicated for asymptomatic patients. Moreover, although surgical intervention is required for patients with complications such as encroachment of normal pulmonary tissue or infection, resection should be as limited as possible to preserve normal lung tissue.     

Splenic hamartoma: Report of a case and review of the literature

A 39-year-old Japanese man with a splenic hamartoma who underwent surgery, is reported herein. The patient had a volvulus of the transverse colon and acute Type A hepatitis. His symptoms included fever, abdominal pain and icterus and the serum chemistry showed liver dysfunction and an elevation of hepatitis A antibody levels. Barium enema revealed a volvulus of the transverse colon. Ultrasonogram showed a hypoechoic mass and angiogram showed evidence of stretching of the intrasplenic vessels in the arterial phase and a hypovascular mass lesion in the venous phase. Macroscopically, the tumor was a well-defined, whitishyellow, hard nodule. Microscopically, the tumor was composed of fibrous scar tissue containing scattered red pulp tissues and the histologic diagnosis was a splenic hamartoma of the fibrous type. The patient’s postoperative recovery was uneventful. The clinical features of splenic hamartoma are reviewed in this report and the differential diagnosis is also discussed.     

Colonic actinomycosis: Report of a case and review of the literature

Abdominal actinomycosis is a rare entity which presents some difficulty in establishing a correct preoperative diagnosis. We report herein the case of a 41-year-old woman who developed abdominal actinomycosis involving the left colon and the surrounding retroperitoneum. The patient, who had an intrauterine contraceptive device (IUCD) in situ, presented with left flank pain and the signs and symptoms of an intraabdominal mass, which was initially diagnosed as a neoplasm originating from the left colon or the retroperitoneal space. Thus, a left colectomy was performed, but the histopathological diagnosis revealed abdominal actinomycosis. We evaluated the diagnosis and treatment of this disease in light of the knowledge acquired from the available literature on this rare entity.