# So Called Junk Materials & Pitfalls #### So Called Junk Materials & Pitfalls The so-called junk materials are important * major workload of a private practice * problematic if normal histology and embryology is not well known (normal structures may be mistaken as neoplasm) * important resource for immunohistochemistry controls * incidental neoplasms are not uncommon * systemic diseases like amyloidosis or vascultis may have features in these specimens * proof of surgery in medico-legal cases and for billing purposes * Normal histologic features are used to name or describe neoplasms * Autopsy practice is in decline, these specimens are good to learn autopsy pathology Pilonidal Sinus Abortus Tonsillectomy & Adenoidectomy Paratubal cysts Ovarian cysts Hemorroidectomy Circumcission Cholecystectomy Keratinous cysts Callus Fibroepithelial Polyps Pitergiyum Nasal polyps Hernia Sac Pyogenic Granuloma Appendectomy Lipoma Elastofibroma Ganglion Cyst Dupyutren Kolesteatom Mammoplasty Sleeve Gastrectomy Liposuction Splenectomy for Trauma Keloid Pyogenic granuloma Amputations The so-called junk materials are important * major workload of a private practice * problematic if normal histology and embryology is not well known (normal structures may be mistaken as neoplasm) * important resource for immunohistochemistry controls * incidental neoplasms are not uncommon * systemic diseases like amyloidosis or vascultis may have features in these specimens * proof of surgery in medico-legal cases and for billing purposes * Normal histologic features are used to name or describe neoplasms * Autopsy practice is in decline, these specimens are good to learn autopsy pathology Pilonidal Sinus Abortus Tonsillectomy & Adenoidectomy Paratubal cysts Ovarian cysts Hemorroidectomy Circumcission Cholecystectomy Keratinous cysts Callus Fibroepithelial Polyps Pitergiyum Nasal polyps Hernia Sac Pyogenic Granuloma Appendectomy Lipoma Elastofibroma Ganglion Cyst Dupyutren Kolesteatom Mammoplasty Sleeve Gastrectomy Liposuction Splenectomy for Trauma Keloid Pyogenic granuloma Amputations #### So Called Junk Materials & Pitfalls The so-called junk materials are important * major workload of a private practice * problematic if normal histology and embryology is not well known (normal structures may be mistaken as neoplasm) * important resource for immunohistochemistry controls * incidental neoplasms are not uncommon * systemic diseases like amyloidosis or vascultis may have features in these specimens * proof of surgery in medico-legal cases and for billing purposes * Normal histologic features are used to name or describe neoplasms * Autopsy practice is in decline, these specimens are good to learn autopsy pathology Pilonidal Sinus Abortus Tonsillectomy & Adenoidectomy Paratubal cysts Ovarian cysts Hemorroidectomy Circumcission Cholecystectomy Keratinous cysts Callus Fibroepithelial Polyps Pitergiyum Nasal polyps Hernia Sac Pyogenic Granuloma Appendectomy Lipoma Elastofibroma Ganglion Cyst Dupyutren Kolesteatom Mammoplasty Sleeve Gastrectomy Liposuction Splenectomy for Trauma Keloid Pyogenic granuloma Amputations --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://www.parapathology.com/pathology-residents-and-pathologists/so-called-junk-materials-and-pitfalls.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.