{"topic_id":"exotic_rat_mouse_mammary_fibroadenoma","category":"exotic-pet-health","context":"---\ntopic_id: exotic_rat_mouse_mammary_fibroadenoma\ncategory: exotic-pet-health\ntitle: \"Mammary fibroadenoma in rats (most common subcutaneous tumor; up to 8–10 cm, both sexes)\"\nlang: en\nsource: \"Merck Veterinary Manual — Mammary fibroadenoma in rats (most common subcutaneous tumor; up to 8–10 cm, both sexes)\"\nsource_file: pdf-raw/exotic-health/mvm_mice_rats_pets_2026.txt\ndate_parsed: 2026-07-28\ntokens_estimated: 120\nverified: true\nverification: c1_substring\nsource_document: \"Merck Veterinary Manual (first-hand veterinary reference, tag-stripped local copy)\"\ncitation:\n  authority: \"Merck Veterinary Manual\"\n  title: \"Mammary fibroadenoma in rats (most common subcutaneous tumor; up to 8–10 cm, both sexes)\"\n  url: \"https://www.merckvetmanual.com/\"\n  retrieved: \"2026-07-28\"\n  ref: \"Merck Veterinary Manual — Rats and Mice / Rabbits / Guinea Pigs sections\"\n  doc_type: \"first-hand veterinary reference (authentic)\"\n  needs_review: false\n---\n\n# Mammary fibroadenoma in rats (most common subcutaneous tumor; up to 8–10 cm, both sexes)\n\nVerbatim first-hand facts extracted from the Merck Veterinary Manual (local tag-stripped copy in `pdf-raw/exotic-health/`), retrieved previously and re-used here. All bullets are exact substrings of the cited source and C1-substring verified.\n\n## Verbatim facts (C1 substrings of source_file)\n> The most common subcutaneous tumor in rats is mammary fibroadenoma . The distribution of the mammary tissue is extensive, and the tumors can develop anywhere from the neck to the inguinal region . Tumors can reach 8–10 cm in diameter and occur in both males and females.\n\nSource: `pdf-raw/exotic-health/mvm_mice_rats_pets_2026.txt` (first-hand Merck Veterinary Manual text, local copy).\n\n## Claims (verified C1 substrings of source_file)\n- `The most common subcutaneous tumor in rats is mammary fibroadenoma . The distribution of the mammary tissue is extensive, and the tumors can develop anywhere from the neck to the inguinal region . Tumors can reach 8–10 cm in diameter and occur in both males and females.`\n","sources":["exotic-pet-health — Mammary fibroadenoma in rats (most common subcutaneous tumor; up to 8–10 cm, both sexes) (retrieved 2026-07-28)"],"source":{"authority":"exotic-pet-health","title":"Mammary fibroadenoma in rats (most common subcutaneous tumor; up to 8–10 cm, both sexes)","url":"https://www.merckvetmanual.com/","retrieved":"2026-07-28","ref":"","doc_type":"official PDF","source_document":"Merck Veterinary Manual (first-hand veterinary reference, tag-stripped local copy)","verification_file":"pdf-raw/exotic-health/mvm_mice_rats_pets_2026.txt"},"source_document":"Merck Veterinary Manual (first-hand veterinary reference, tag-stripped local copy)","source_file":"pdf-raw/exotic-health/mvm_mice_rats_pets_2026.txt","tokens_estimated":120,"generated_at":null,"tip":"Use /api/v1/topics to discover more topics. /api/v1/nutrient for precise single-point queries. /api/v1/cross_compare for 2-3 standard comparisons."}