28 September 2015 : Case report
Sialadenoma Papilliferum with Inverted Pattern in a Young Patient: A Case Report
Unusual clinical course, Challenging differential diagnosis, Rare disease, Educational Purpose (only if useful for a systematic review or synthesis)
Francisca Emanuel Reis de Sá Silva e CostaBDEF, José Ramón Vizcaíno VázquezDDOI: 10.12659/AJCR.893987
Am J Case Rep 2015; 16:663-666
Abstract
BACKGROUND: Sialadenoma papilliferum (SP) is a rare, benign neoplasm of salivary gland origin which manifests as an exophytic papillary excrescence of the mucosa. Indeed, SP is both an exophytic proliferation of papillary stratified squamous epithelium above the mucosal surface and an endophytic salivary ductal proliferation beneath the mucosa. It arises predominantly in minor salivary glands and usually affects patients in the age range of 32–87 years, with reports in young patients being exceedingly rare.
CASE REPORT: We report the case of a previously healthy 20-year-old man diagnosed with a nodular mass in the upper lip buccal mucosa. The tumor was excised and submitted for microscopic examination. Histologic examination revealed a biphasic proliferation of papillary stratified squamous and salivary ductal epithelia, both underneath the mucosal surface.
CONCLUSIONS: In this unique case, as the classical SP, the tumor had a biphasic proliferation of squamous and ductal epithelia. However, unlike the classical SP, both epithelia grew under the mucosal surface. As a result, it did not manifest as an exophytic proliferation, but as a nodule. We excluded squamous papilloma, inverted ductal papilloma, intraductal papilloma and mucoepidermoid carcinoma, the principal entities in the differential diagnosis of SP, and concluded it was an SP with inverted pattern.
Keywords: Biopsy, Diagnosis, Differential, Salivary Gland Neoplasms - pathology, Salivary Glands, Minor - pathology
In Press
14 Mar 2024 : Case report
Laparoscopic Sleeve Gastrectomy with Staple-Line Oversewing in a Patient with Factor XI Deficiency: A Case ...Am J Case Rep In Press; DOI: 10.12659/AJCR.942824
14 Mar 2024 : Case report
Pathogenic Potential of a PCK1 Gene Variant in Cytosolic PEPCK Deficiency: A Compelling Case StudyAm J Case Rep In Press; DOI: 10.12659/AJCR.943118
14 Mar 2024 : Case report
Management of Nontraumatic Spontaneous Renal Hemorrhage (Wünderlich Syndrome) through Robotic-Assisted Lapa...Am J Case Rep In Press; DOI: 10.12659/AJCR.942826
14 Mar 2024 : Case report
Simultaneous Occurrence of Collagen Type III Glomerulopathy and Immunoglobulin A Nephropathy: A Rare Case R...Am J Case Rep In Press; DOI: 10.12659/AJCR.942770
Most Viewed Current Articles
07 Mar 2024 : Case report
Neurocysticercosis Presenting as Migraine in the United StatesDOI :10.12659/AJCR.943133
Am J Case Rep 2024; 25:e943133
10 Jan 2022 : Case report
A Report on the First 7 Sequential Patients Treated Within the C-Reactive Protein Apheresis in COVID (CACOV...DOI :10.12659/AJCR.935263
Am J Case Rep 2022; 23:e935263
19 Jul 2022 : Case report
Atlantoaxial Subluxation Secondary to SARS-CoV-2 Infection: A Rare Orthopedic Complication from COVID-19DOI :10.12659/AJCR.936128
Am J Case Rep 2022; 23:e936128
23 Feb 2022 : Case report
Penile Necrosis Associated with Local Intravenous Injection of CocaineDOI :10.12659/AJCR.935250
Am J Case Rep 2022; 23:e935250