Multiple schwannoma of the seminal vesicle: A case report

Abstract

Rationale: Schwannomas of the seminal vesicles are extremely rare, and only cases of single seminal vesicle schwannomas have been reported. Here, we report a case of multiple schwannoma of the seminal vesicle.

Patient concerns: We report a rare case of multiple schwannoma of the seminal vesicle that occurred in a 48-year-old man during physical examination. Multiple mixed masses in the left region of the seminal vesicle were documented with transrectal ultrasonography and magnetic resonance imaging. The patient presented no clinical symptoms, no family history of the disease and no history of genetic disease.

Diagnosis: Postoperative pathology revealed a diagnosis of seminal vesical schwannoma.

Interventions: The patient underwent robotic-assisted laparoscopic surgery to remove the mass.

Outcomes: The patient recovered rapidly and the length of hospitalization was 6 days after operation. At present, there is no recurrence in 10 month follow up.

Lessons: Whether benign or malignant, single or multiple, schwannomas still need to be diagnosed by pathology because of the limitations of examination methods. Surgical resection is still the preferred treatment.

Figure 1

A: The lesion was dominated by long T1 and T2 signals, and the solid portion showed equal signal intensity; Figure 1B: the cystic components showed higher signal in the sagittal T2 lipid-pressing sequence; Figure 1C: the cyst wall and solid portion of the T1 lipid-pressing enhancement sequence showed progressive enhancement.

Figure 2

The left seminal vesicle was enlarged, and the inhomogeneous hypoechoic area was observed.

Figure 3

Shows a cystic lesion on the whole.

Figure 4

Microscopically, the tumor cells were spindle-shaped, bundled and focal palisade-shaped.