Pigmented onychomatricoma may originate from a childhood trauma: A case report.

Pigmented onychomatricoma (OM) is a very rare benign fibroepithelial tumor of the nail matrix. We report the case of a 23-year-old Lebanese man with 15-year history of nail plate dystrophy with longitudinal ridging, yellowish discoloration, excessive transverse curvature and late-onset melanonychia along the medial third of the right thumb nail. Excisional biopsy was performed and confirmed OM. We outline the clinical history, radiological and histopathological findings as well as the surgical and reconstructive technique of this unusual case of OM. The age group, history of crush injury, and pigmentation of the nail plate make of this rare form of ungual tumor an interesting case report.

A rare case of successful endoscopic management of a fibroepithelial polyp with intussusception of the ureter and periodic prolapse into bladder.

Fibroepithelial polyps of the ureter are rare non-epithelial benign tumours with a slight female predominance. They are primarily located in the upper left ureter, incidentally diagnosed in patients who are evaluated for gross haematuria or renal colic. Fibroepithelial polyps are traditionally managed by open surgery with resection of the polyp and its stalk or partial resection of the ureter. We describe the case of a fibroepithelial polyp located in the distal right ureter, which occurred in a 42-year-old man with lower urinary tract symptoms, haematuria and flank pain. To our knowledge, this is the first reported case of ureteral fibroepithelial polyp acting as a lead point for ureteral intussusception and to protruding periodically into the bladder cavity, which was successfully resected by ureteroscopic electrocauterisation with good outcome.

Giant fibroepithelial polyp of the thigh and retroperitoneal fibromatosis in a young woman: a rare case.

We present a case of 20-year-old woman who presented with a large pedunculated skin covered mass lesion arising from the left thigh, measuring 40 × 25 cm, with no history of pain or skin ulceration and a feeling of a lump with dragging pain in the left side of the abdomen for about 7 years. Subsequently, ultrasound, contrast-enhanced computed tomography, and magnetic resonance imaging of abdomen and left thigh region were carried out. The lesion was broad-based toward the left upper thigh with a central core of interspersed fat supplied by branches of the superficial and deep femoral arteries. Another lesion was seen in the left retroperitoneum anterior to the psoas muscle in a left paravertebral location encasing the left common iliac vessels extending into the left pelvic cavity and inguinal region inferiorly. The lesion showed dense post-acoustic shadowing on ultrasound, mild enhancement on contrast-enhanced computed tomography, and appeared hypointense on T1- and T2-weighted images. A left thigh lesion was excised, whereas incisional biopsy was done for the left retroperitoneal lesion. The diagnosis of a giant fibroepithelial polyp arising from the left thigh and left retroperitoneal fibromatosis was made. This is the first report of such a giant fibroepithelial polyp arising from the thigh with associated retroperitoneal fibromatosis.

Alternative approach of a Fibroepithelial polyp.

A 41-year-old male presented at Emergency Department (ED) with right flank pain associated with hematuria for 3 days. Patient had a previous history of nephrolithiasis. The physical examination and blood tests were normal. Urine analyses showed haematuria > 1.000.000/µL. After clinical evaluation, a computer tomography (CT) showed right ureteral dilata¬tion caused by a 5 mm proximal stone and a distal intraluminal mass of 8 cm in length. In this setting, an ureteroscopic biopsy was performed and revealed a large polypoid lesion histologically suggestive of fibroepithelial polyp. Due to technical difficulties (intraluminal mass length and technical issue for the passage of guidewire) and after discussing all available minimally invasive options, we opted for a laparoscopic approach. Instead of ureterectomy of the affected segment of the ureter, as classically performed, we proceeded with an ureterotomy, blunt dissection of the tumor and ureterolithotomy, with complete removal of the mass. This approach did not require ureteral anastomosis and the ureteral dilatation facilitated its primary closure. No complications occurred, even after 3 years of follow-up.

Robot-Assisted Laparoscopic Excision of Ureteral and Ureteropelvic Junction Fibroepithelial Polyps in Children.

INTRODUCTION: Fibroepithelial polyps of the ureter are a rare cause of asymptomatic and symptomatic upper urinary tract obstruction in children. While these lesions can often be managed endoscopically, large or multifocal polyps may preclude such an approach. OBJECTIVE: We aim to describe our institutional experience with robot-assisted laparoscopic treatment of ureteral polyps and show that a robotic approach is an effective alternative for large or multifocal polyps. MATERIALS AND METHODS: Four children were identified with ureteral polyps over a 5-year period and underwent transperitoneal robot-assisted laparoscopic excision. Patients presented with flank pain and/or worsening hydronephrosis. All patients were evaluated preoperatively with ultrasound and Tc99m-mercaptoacetyltriglycine (MAG3) diuretic renogram or MR urogram. Retrograde pyelography corroborated the diagnosis of ureteral polyps. We reviewed the charts of these patients and compared the specific robotic approach for each patient, length of hospitalization, surgical complications, need for additional procedures, and resolution of symptoms and hydronephrosis. RESULTS: In one patient, more than 20 polyps were identified over a long ureteral segment and all were excised; for the remaining three patients, 1 to 2 polyps were found. Mean postoperative length of stay was 1.5 days. One patient developed a ureteral stricture requiring repeat ureteroureterostomy, and another patient required repeat retrograde pyelography for gross hematuria that occurred several months after surgery. No polyps or obstruction was observed on retrograde pyelography in these patients. Mean duration of follow-up was 29 months (9-62 months). Symptoms and degree of hydronephrosis have improved in the three patients who have been followed for at least 12 months. CONCLUSIONS: Robot-assisted laparoscopy is a safe and feasible alternative to endoscopic treatment of fibroepithelial ureteral polyps. The robotic platform may be preferred in cases of multifocal or large ureteral polyps, or in cases in which a concomitant ureteropelvic junction narrowing may be present.

Utilizing ultrasonography in the diagnosis of pediatric fibroepithelial polyps causing ureteropelvic junction obstruction.

BACKGROUND: Fibroepithelial polyps are a rare cause of ureteropelvic junction (UPJ) obstruction in children. Preoperative US diagnosis of fibroepithelial polyps is infrequently reported, with intravenous pylogram and retrograde pyelography being most commonly used for diagnosis. OBJECTIVE: To recommend the most accurate process for diagnosing this disease in children by assessing a modified ultrasonographic procedure for the diagnosis of fibroepithelial polyps. MATERIALS AND METHODS: A retrospective review of US and IVP imaging studies performed in surgically and histologically confirmed cases of fibroepithelial polyps in children. Each child was asked to drink as much water as possible 30 min before the US testing. For US, the renal pelvis, UPJ and the proximal ureter were inspected for an echogenic mass resulting in hydronephrosis. For IVP studies, abdominal plain films were performed at 7, 15 and 30 min following contrast injection. RESULTS: Thirty-five children, 34 boys and 1 girl, had confirmed fibroepithelial polyps. The children ranged in age from 3 to 14 years (mean age 9 years). Clinical presentation included intermittent vague abdominal pain (100%) and/or hematuria (9.7%) for a period ranging from 1 month to 5 years. Of the 35 children (37 polyps), 21 (23 polyps) were correctly diagnosed preoperatively with US, establishing a 62.2% (23/37) US accuracy rate. Twenty polyps were seen on the left, three on the right and two children had bilateral polyps. The masses were all mildly echogenic with defined edges. Eight children (9 polyps) had an IVP consistent with fibroepithelial polyps giving IVP an accuracy rate of 24.3% (9/37). CONCLUSION: US is an effective screening tool for identifying fibroepithelial polyps causing UPJ obstruction in children.

Fibroepithelial polyp of the bronchus: CT and histopathologic findings.

A fibroepithelial polyp of the bronchus is a rare, benign, and endobronchial tumor, histologically consisting of fibrovascular stroma covered by normal respiratory epithelium. We report a case of a fibroepithelial polyp arising from the left main bronchus. On CT, a characteristic lobulating contour of the endobronchial nodule was well visualized, which histopathologically represented a typical papillary growth pattern of the nodule. Such a lobulating contour of the nodule might help make a correct diagnosis of this rare disease among other various endobronchial neoplasms.

[Ultrasound-guided core needle biopsy for the diagnosis of fibroepithelial breast tumors]. / Biópsia com agulha grossa guiada por ultrassonografia para o diagnóstico dos tumores fibroepiteliais da mama.

PURPOSE: to evaluate the concordance rate of ultrasound-guided core needle biopsy followed by excisional biopsy in palpable breast lumps, suggestive of fibroepithelial tumors. METHOD: a retrospective study included 70 biopsies with a histological diagnosis of fibroepithelial tumor in 67 out of 531 patients with breast lesions submitted to ultrasound-guided core needle biopsy with a high frequency (7.5 MHz) linear transducer, using an automatic Bard-Magnum gun and a 14-gauge needle. Cases with a diagnosis of fibroepithelial tumor by core needle biopsy or excisional biopsy and with a diagnosis of fibrosclerosis were included in the study. The agreement between the two biopsy methods was assessed using the Kappa coefficient. RESULTS: excisional biopsy revealed 40 cases of fibroadenoma (57.1%), 19 cases of phyllodes tumor (27.2%), and 11 cases of fibrosclerosis (15.7%). The concordance rate for fibroadenoma was substantial (k = 0.68, 95%CI = 0.45 - 0.91), almost perfect for the phyllodes tumor (k = 0.81, 95%CI = 0.57 - 1.0), and moderate for fibrosclerosis (k = 0.58, 95%CI = 0.36 - 0.90). CONCLUSIONS: the core needle biopsy is a minimally invasive method that has "substantial" to "almost perfect" concordance rate with excisional biopsy. Fibrosclerosis should be considered in the differential diagnosis of fibroepithelial tumors.

Laparoscopic management of extensive ureteral fibroepithelial polyps.

Fibroepthelial polyps are uniformly benign tumors of the collecting system which may cause obstruction of an affected renal unit. We present a unique case of a 34-year-old male with a solitary functioning kidney who presented with flank pain and renal insufficiency. Radiographic and ureteroscopic evaluation revealed ureteral obstruction due to extensive polyps. After ureteral stenting and normalization of renal function, successful polyp excisions were performed laparoscopically through a ureterotomy. The pathology revealed benign fibroepithelial polyps. The patient remained asymptomatic until 3 years later when ureteroscopy performed for a calculus revealed a widely patent lumen free of polyps. To our knowledge, this is the first published report of a long term follow up after laparoscopic resection of extensive ureteral fibroepithelial polyps.

Is endoscopic management suitable for long ureteral fibroepithelial polyps?

BACKGROUND AND PURPOSE: Fibroepithelial polyps of the ureter are rare benign tumors that have traditionally been managed by open exploration and resection. Endoscopic resection have been regarded as the gold standard for small lesions, while the management modality for long lesions is still controversial. We review our experience with ureteroscopic management of long (>6 cm) ureteral fibroepithelial polyps by holmium: yttrium-aluminum-garnet (YAG) laser resection. PATIENTS AND METHODS: Five patients with a long ureteral fibroepithelial polyp underwent ureteroscopic resection using a holmium:YAG laser. RESULTS: Endoscopic management was successful in all five patients, and no major complications resulted from the approach. The average length of stay was 3 days (range 2-5 d). The mean length of the lesions were 11 cm (range 6-16 cm). The ureteral stent was removed at 6 weeks. No recurrences were seen during a mean followup of 24.2 months (range 3-51 mos). One ureteral stricture developed at 3 months, and the patient underwent endoscopic treatment by holmium:YAG laser. CONCLUSIONS: Endoscopic management of long ureteral fibroepithelial polyps is an acceptable modality with minimal morbidity and durable treatment results. The holmium:YAG laser offers the advantages of facilitating the use of a small-caliber fiber or flexible ureteroscope and allows safe destruction of the stalk and efficient removal of the entire polyp.

Cellular pseudosarcomatous fibroepithelial stromal polyp of the renal pelvis.

Cellular pseudosarcomatous fibroepithelial stromal polyp is an underrecognized lesion described in the lower female genital tract. We here report the clinical, histological, and immunohistochemical features of a cellular pseudosarcomatous fibroepithelial stromal polyp located in the renal pelvis. A 47-year-old woman was referred with a 4-month history of left flank pain and gross hematuria. Left radical nephrectomy was performed. Gross pathological examination showed irregular pedunculated polypoid masses that had developed from the renal pelvis. Histologically, spindle cells with a patternless appearance were seen. The cells were of different sizes and had discernible cytoplasmic bipolar processes. Atypical stromal cells and atypical mitoses were also found. This case represents a typical cellular pseudosarcomatous fibroepithelial stromal polyp, probably developing from a reactive hyperplastic process involving the subepithelial stroma.

Treatment of bilateral fibroepithelial polyps in a child.

Ureteral fibroepithelial polyps are extremely rare benign lesions composed of stroma with a surface of normal transitional epithelium. Traditionally, symptomatic polyps were treated with open exploration and segmental resection. We describe the first case of bilateral polyps in a child. One was removed by segmental resection and the other by ureteroscopic laser surgery.