case_images: PMC10684326_01
case_images: Pelvic computed tomography showing a dermoid cyst. No malignant findings (a, b, white arrow) are noted. Intraoperatively (c), the cyst was removed from the body using a bag (d), and the pelvic cavity was cleaned (e).
case_images: CRIOG2023-8875092.001.jpg
case_images: PMC10684326_01_CRIOG2023-8875092.001.jpg
case_images: fig1
case_images: However, the CT scan did not reveal any imaging findings indicative of malignancy (Figures 1(a) and 1(b)). Laparoscopic ovarian cystectomy was performed for a ruptured cyst (Figure 1(c)). During cystectomy, care was taken to prevent spillage of the tumor contents (mainly fat and hair), and the excised tissue was placed in a bag and removed via the upper pubic trocar hole (Figure 1(d)). The abdominal cavity was thoroughly cleaned (Figure 1(e)), and the patient was discharged on postoperative day 3.
case_images: Magnetic resonance imaging showing a subcutaneous mass with an irregular surface (a, sagittal view, white circle; b, horizontal view, white circle) and with a normal uterus (c, white arrow) and ovaries (c, yellow arrows). Biopsy results reveal an invasive squamous cell carcinoma with carcinomatous nodule formation (d). Cystoscopy reveals cancerous invasion of the bladder (e, white circle). Fluorodeoxyglucose accumulation was observed in the lower abdominal wall (f, black arrows).
case_images: CRIOG2023-8875092.002.jpg
case_images: PMC10684326_01_CRIOG2023-8875092.002.jpg
case_images: fig2
case_images: MRI revealed an indistinct mass in the 3 cm range, suspected of being either a primary tumor of the abdominal wall, carcinoma originating from a ureteric duct remnant, or malignant transformation of a teratoma attached to the peritoneum (Figures 2(a) and 2(b)). No utero-ovarian abnormality was noted (Figure 2(c)). Biopsy revealed invasive SCC with carcinomatous nodule formation (Figure 2(d)), and the SCC-related antigen level increased to 5.1 ng/mL (2 years prior, SCC-related antigen level was 1.4 ng/mL (normal range < 1.5 ng/mL)). Although MRI showed no utero-ovarian abnormalities, cystoscopy revealed cancerous invasion of the bladder (Figure 2(e)). Fluorodeoxyglucose accumulation (maximum standardized uptake value = 6.93) was observed in the lower abdominal wall (Figure 2(f)).