A 45-year-old man presented with right-sided testicular swelling and pain. An examination found a tender, firm right testis, a clinically normal left testis and no palpable lymphadenopathy. Tumour and inflammatory markers were within normal limits. A scrotal ultrasound scan showed an intratesticular, avascular lesion measuring 4.4×2.6×1.8 cm. A CT scan of his chest/abdomen/pelvis (CT C/A/P) showed no metastatic or primary lesions. An elective right-inguinal orchidectomy was subsequently performed. Histopathology showed a cystic mucinous tumour lined with intestinal-type epithelium. Differentials of metastatic adenocarcinoma, possibly of a gastrointestinal origin, a monodermal teratoma, or a borderline mucinous tumour of the testicle (BMTT) were considered. Following 12 p genetic studies and a colonoscopy, both of which found no abnormalities, a presumptive diagnosis of a BMTT was made. The patient is to have an annual urological review with a CT C/A/P and 5 yearly colonoscopies.

Müllerianosis of the bladder is an extremely rare and highly symptomatic bladder tumour comprising of at least two types of Müllerian derived tissues. We present the case of a 59-year-old woman presenting with painful macroscopic haematuria associated with urgency, frequency and incontinence. She is a nulliparous postmenopausal woman without malignancy risk factors or previous abdominal surgery. Initially identified on ultrasound scan, she was taken for transurethral resection of bladder tumour (TURBT). Histology confirms the diagnosis. Repeat TURBT was required for non-resolution of symptoms. Despite a thorough resection, symptoms recurred within months necessitating partial cystectomy. Although a 'benign' lesion, this lesion proved a difficult condition to treat requiring partial cystectomy.